---
OA_type: closed access
_id: '18016'
abstract:
- lang: eng
  text: Understanding the electrical properties of semiconducting quantum dot devices
    have been limited due to the variability of their size/composition and the chemistry
    of ligand/electrode binding. Furthermore, to probe their electrical conduction
    properties and its dependence on ligand/electrode binding, measurements must be
    carried out at the single dot/cluster level. Herein we report scanning tunneling
    microscope based break junction measurements of cobalt chalcogenide clusters with
    Te, Se and S to probe the conductance properties. Our measured conductance trends
    show that the Co–Te based clusters have the highest conductance while the Co-S
    clusters the lowest. These trends are in very good agreement with cyclic voltammetry
    measurements of the first oxidation potentials and with density functional theory
    calculations of their HOMO–LUMO gaps.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Brycelyn M.
  full_name: Boardman, Brycelyn M.
  last_name: Boardman
- first_name: Jonathan R.
  full_name: Widawsky, Jonathan R.
  last_name: Widawsky
- first_name: Young S.
  full_name: Park, Young S.
  last_name: Park
- first_name: Christine L.
  full_name: Schenck, Christine L.
  last_name: Schenck
- first_name: Latha
  full_name: Venkataraman, Latha
  id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
  last_name: Venkataraman
  orcid: 0000-0002-6957-6089
- first_name: Michael L.
  full_name: Steigerwald, Michael L.
  last_name: Steigerwald
- first_name: Colin
  full_name: Nuckolls, Colin
  last_name: Nuckolls
citation:
  ama: Boardman BM, Widawsky JR, Park YS, et al. Conductance of single cobalt chalcogenide
    cluster junctions. <i>Journal of the American Chemical Society</i>. 2011;133(22):8455-8457.
    doi:<a href="https://doi.org/10.1021/ja201334s">10.1021/ja201334s</a>
  apa: Boardman, B. M., Widawsky, J. R., Park, Y. S., Schenck, C. L., Venkataraman,
    L., Steigerwald, M. L., &#38; Nuckolls, C. (2011). Conductance of single cobalt
    chalcogenide cluster junctions. <i>Journal of the American Chemical Society</i>.
    American Chemical Society. <a href="https://doi.org/10.1021/ja201334s">https://doi.org/10.1021/ja201334s</a>
  chicago: Boardman, Brycelyn M., Jonathan R. Widawsky, Young S. Park, Christine L.
    Schenck, Latha Venkataraman, Michael L. Steigerwald, and Colin Nuckolls. “Conductance
    of Single Cobalt Chalcogenide Cluster Junctions.” <i>Journal of the American Chemical
    Society</i>. American Chemical Society, 2011. <a href="https://doi.org/10.1021/ja201334s">https://doi.org/10.1021/ja201334s</a>.
  ieee: B. M. Boardman <i>et al.</i>, “Conductance of single cobalt chalcogenide cluster
    junctions,” <i>Journal of the American Chemical Society</i>, vol. 133, no. 22.
    American Chemical Society, pp. 8455–8457, 2011.
  ista: Boardman BM, Widawsky JR, Park YS, Schenck CL, Venkataraman L, Steigerwald
    ML, Nuckolls C. 2011. Conductance of single cobalt chalcogenide cluster junctions.
    Journal of the American Chemical Society. 133(22), 8455–8457.
  mla: Boardman, Brycelyn M., et al. “Conductance of Single Cobalt Chalcogenide Cluster
    Junctions.” <i>Journal of the American Chemical Society</i>, vol. 133, no. 22,
    American Chemical Society, 2011, pp. 8455–57, doi:<a href="https://doi.org/10.1021/ja201334s">10.1021/ja201334s</a>.
  short: B.M. Boardman, J.R. Widawsky, Y.S. Park, C.L. Schenck, L. Venkataraman, M.L.
    Steigerwald, C. Nuckolls, Journal of the American Chemical Society 133 (2011)
    8455–8457.
date_created: 2024-09-09T12:35:04Z
date_published: 2011-05-03T00:00:00Z
date_updated: 2025-01-03T09:38:32Z
day: '03'
doi: 10.1021/ja201334s
extern: '1'
external_id:
  pmid:
  - '21539375'
intvolume: '       133'
issue: '22'
language:
- iso: eng
month: '05'
oa_version: None
page: 8455-8457
pmid: 1
publication: Journal of the American Chemical Society
publication_identifier:
  eissn:
  - 1520-5126
  issn:
  - 0002-7863
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Conductance of single cobalt chalcogenide cluster junctions
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 133
year: '2011'
...
---
OA_type: closed access
_id: '18020'
abstract:
- lang: eng
  text: Understanding electron transport across π−π-stacked systems will help to answer
    fundamental questions about biochemical redox processes and benefit the design
    of new materials and molecular devices. Herein we employed the STM break-junction
    technique to measure the single-molecule conductance of multiple π−π-stacked aromatic
    rings. We studied electron transport through up to four stacked benzene rings
    held together in an eclipsed fashion via a paracyclophane scaffold. We found that
    the strained hydrocarbons studied herein couple directly to gold electrodes during
    the measurements; hence, we did not require any heteroatom binding groups as electrical
    contacts. Density functional theory-based calculations suggest that the gold atoms
    of the electrodes bind to two neighboring carbon atoms of the outermost cyclophane
    benzene rings in η2 fashion. Our measurements show an exponential decay of the
    conductance with an increasing number of stacked benzene rings, indicating a nonresonant
    tunneling mechanism. Furthermore, STM tip−substrate displacement data provide
    additional evidence that the electrodes bind to the outermost benzene rings of
    the π−π-stacked molecular wires.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Severin T.
  full_name: Schneebeli, Severin T.
  last_name: Schneebeli
- first_name: Maria
  full_name: Kamenetska, Maria
  last_name: Kamenetska
- first_name: Zhanling
  full_name: Cheng, Zhanling
  last_name: Cheng
- first_name: Rachid
  full_name: Skouta, Rachid
  last_name: Skouta
- first_name: Richard A.
  full_name: Friesner, Richard A.
  last_name: Friesner
- first_name: Latha
  full_name: Venkataraman, Latha
  id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
  last_name: Venkataraman
  orcid: 0000-0002-6957-6089
- first_name: Ronald
  full_name: Breslow, Ronald
  last_name: Breslow
citation:
  ama: Schneebeli ST, Kamenetska M, Cheng Z, et al. Single-molecule conductance through
    multiple π−π-stacked benzene rings determined with direct electrode-to-benzene
    ring connections. <i>Journal of the American Chemical Society</i>. 2011;133(7):2136-2139.
    doi:<a href="https://doi.org/10.1021/ja111320n">10.1021/ja111320n</a>
  apa: Schneebeli, S. T., Kamenetska, M., Cheng, Z., Skouta, R., Friesner, R. A.,
    Venkataraman, L., &#38; Breslow, R. (2011). Single-molecule conductance through
    multiple π−π-stacked benzene rings determined with direct electrode-to-benzene
    ring connections. <i>Journal of the American Chemical Society</i>. American Chemical
    Society. <a href="https://doi.org/10.1021/ja111320n">https://doi.org/10.1021/ja111320n</a>
  chicago: Schneebeli, Severin T., Maria Kamenetska, Zhanling Cheng, Rachid Skouta,
    Richard A. Friesner, Latha Venkataraman, and Ronald Breslow. “Single-Molecule
    Conductance through Multiple Π−π-Stacked Benzene Rings Determined with Direct
    Electrode-to-Benzene Ring Connections.” <i>Journal of the American Chemical Society</i>.
    American Chemical Society, 2011. <a href="https://doi.org/10.1021/ja111320n">https://doi.org/10.1021/ja111320n</a>.
  ieee: S. T. Schneebeli <i>et al.</i>, “Single-molecule conductance through multiple
    π−π-stacked benzene rings determined with direct electrode-to-benzene ring connections,”
    <i>Journal of the American Chemical Society</i>, vol. 133, no. 7. American Chemical
    Society, pp. 2136–2139, 2011.
  ista: Schneebeli ST, Kamenetska M, Cheng Z, Skouta R, Friesner RA, Venkataraman
    L, Breslow R. 2011. Single-molecule conductance through multiple π−π-stacked benzene
    rings determined with direct electrode-to-benzene ring connections. Journal of
    the American Chemical Society. 133(7), 2136–2139.
  mla: Schneebeli, Severin T., et al. “Single-Molecule Conductance through Multiple
    Π−π-Stacked Benzene Rings Determined with Direct Electrode-to-Benzene Ring Connections.”
    <i>Journal of the American Chemical Society</i>, vol. 133, no. 7, American Chemical
    Society, 2011, pp. 2136–39, doi:<a href="https://doi.org/10.1021/ja111320n">10.1021/ja111320n</a>.
  short: S.T. Schneebeli, M. Kamenetska, Z. Cheng, R. Skouta, R.A. Friesner, L. Venkataraman,
    R. Breslow, Journal of the American Chemical Society 133 (2011) 2136–2139.
date_created: 2024-09-09T12:57:08Z
date_published: 2011-01-25T00:00:00Z
date_updated: 2025-01-03T09:49:00Z
day: '25'
doi: 10.1021/ja111320n
extern: '1'
external_id:
  pmid:
  - '21265533'
intvolume: '       133'
issue: '7'
language:
- iso: eng
month: '01'
oa_version: None
page: 2136-2139
pmid: 1
publication: Journal of the American Chemical Society
publication_identifier:
  eissn:
  - 1520-5126
  issn:
  - 0002-7863
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Single-molecule conductance through multiple π−π-stacked benzene rings determined
  with direct electrode-to-benzene ring connections
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 133
year: '2011'
...
---
_id: '13410'
abstract:
- lang: eng
  text: A range (Au, Pt, Pd) of metal nanoparticles (MNPs) has been prepared and functionalized
    with (a) redox-active stalks containing tetrathiafulvalene (TTF) units, (b) [2]pseudorotaxanes
    formed between these stalks and cyclobis(paraquat-p-phenylene) (CBPQT4+) rings,
    and (c) bistable [2]rotaxane molecules where the dumbbell component contains a
    1,5-dioxynaphthalene (DNP) unit, as well as a TTF unit, encircled by a CBPQT4+
    ring. It transpires that the molecules present in (a) and (c) and the supermolecules
    described in (b) retain their switching characteristics, previously observed in
    solution, when they are immobilized onto MNPs. Moreover, their oxidation potentials
    depend on the fraction, χ, of the molecules or supermolecules on the surface of
    the nanoparticles. A variation in χ affects the oxidation potentials of the TTF
    units to the extent that switching can be subjected to fine tuning as a result.
    Specifically, increasing χ results in positive shifts (i) in the oxidation potentials
    of the TTF unit in (a)−(c) and (ii) the reduction potentials of the CBPQT4+ rings
    in (c). These shifts can be attributed to an increase in the electrostatic potential
    surrounding the MNPs. Both the magnitude and the direction of these shifts are
    reproduced by a model, based on the Poisson−Boltzmann equation coupled with charge-regulating
    boundary conditions. Furthermore, the kinetics of relaxation from the metastable
    state coconformation (MSCC) to the ground-state coconformation (GSCC) of the bistable
    [2]rotaxane molecules also depends on χ, as well as on the nanoparticle diameter.
    Increasing either of these parameters accelerates the rate of relaxation from
    the MSCC to the GSCC. This rate is a function of (i) the activation energy for
    the relaxation process associated with the bistable [2]rotaxane molecules in solution
    and (ii) the electrostatic potential surrounding the MNPs. The electrostatic potential
    depends on (i) the diameter of the MNPs, (ii) the amount of the bistable [2]rotaxane
    molecules on the surface of the MNPs, and (iii) the equilibrium distribution of
    the CBPQT4+ rings between the DNP and TTF recognition sites in the GSCC. This
    electrostatic potential has also been quantified using the Poisson−Boltzmann equation,
    leading to faithful estimates of the rate constants.
article_processing_charge: No
article_type: original
author:
- first_name: Ali
  full_name: Coskun, Ali
  last_name: Coskun
- first_name: Paul J.
  full_name: Wesson, Paul J.
  last_name: Wesson
- first_name: Rafal
  full_name: Klajn, Rafal
  id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
  last_name: Klajn
- first_name: Ali
  full_name: Trabolsi, Ali
  last_name: Trabolsi
- first_name: Lei
  full_name: Fang, Lei
  last_name: Fang
- first_name: Mark A.
  full_name: Olson, Mark A.
  last_name: Olson
- first_name: Sanjeev K.
  full_name: Dey, Sanjeev K.
  last_name: Dey
- first_name: Bartosz A.
  full_name: Grzybowski, Bartosz A.
  last_name: Grzybowski
- first_name: J. Fraser
  full_name: Stoddart, J. Fraser
  last_name: Stoddart
citation:
  ama: 'Coskun A, Wesson PJ, Klajn R, et al. Molecular-mechanical switching at the
    nanoparticle−solvent interface: Practice and theory. <i>Journal of the American
    Chemical Society</i>. 2010;132(12):4310-4320. doi:<a href="https://doi.org/10.1021/ja9102327">10.1021/ja9102327</a>'
  apa: 'Coskun, A., Wesson, P. J., Klajn, R., Trabolsi, A., Fang, L., Olson, M. A.,
    … Stoddart, J. F. (2010). Molecular-mechanical switching at the nanoparticle−solvent
    interface: Practice and theory. <i>Journal of the American Chemical Society</i>.
    American Chemical Society. <a href="https://doi.org/10.1021/ja9102327">https://doi.org/10.1021/ja9102327</a>'
  chicago: 'Coskun, Ali, Paul J. Wesson, Rafal Klajn, Ali Trabolsi, Lei Fang, Mark
    A. Olson, Sanjeev K. Dey, Bartosz A. Grzybowski, and J. Fraser Stoddart. “Molecular-Mechanical
    Switching at the Nanoparticle−solvent Interface: Practice and Theory.” <i>Journal
    of the American Chemical Society</i>. American Chemical Society, 2010. <a href="https://doi.org/10.1021/ja9102327">https://doi.org/10.1021/ja9102327</a>.'
  ieee: 'A. Coskun <i>et al.</i>, “Molecular-mechanical switching at the nanoparticle−solvent
    interface: Practice and theory,” <i>Journal of the American Chemical Society</i>,
    vol. 132, no. 12. American Chemical Society, pp. 4310–4320, 2010.'
  ista: 'Coskun A, Wesson PJ, Klajn R, Trabolsi A, Fang L, Olson MA, Dey SK, Grzybowski
    BA, Stoddart JF. 2010. Molecular-mechanical switching at the nanoparticle−solvent
    interface: Practice and theory. Journal of the American Chemical Society. 132(12),
    4310–4320.'
  mla: 'Coskun, Ali, et al. “Molecular-Mechanical Switching at the Nanoparticle−solvent
    Interface: Practice and Theory.” <i>Journal of the American Chemical Society</i>,
    vol. 132, no. 12, American Chemical Society, 2010, pp. 4310–20, doi:<a href="https://doi.org/10.1021/ja9102327">10.1021/ja9102327</a>.'
  short: A. Coskun, P.J. Wesson, R. Klajn, A. Trabolsi, L. Fang, M.A. Olson, S.K.
    Dey, B.A. Grzybowski, J.F. Stoddart, Journal of the American Chemical Society
    132 (2010) 4310–4320.
date_created: 2023-08-01T09:48:27Z
date_published: 2010-03-31T00:00:00Z
date_updated: 2023-08-08T08:00:31Z
day: '31'
doi: 10.1021/ja9102327
extern: '1'
external_id:
  pmid:
  - '20218598'
intvolume: '       132'
issue: '12'
keyword:
- Colloid and Surface Chemistry
- Biochemistry
- General Chemistry
- Catalysis
language:
- iso: eng
month: '03'
oa_version: None
page: 4310-4320
pmid: 1
publication: Journal of the American Chemical Society
publication_identifier:
  eissn:
  - 1520-5126
  issn:
  - 0002-7863
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Molecular-mechanical switching at the nanoparticle−solvent interface: Practice
  and theory'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 132
year: '2010'
...
---
OA_type: closed access
_id: '18027'
abstract:
- lang: eng
  text: We have measured the conductance and characterized molecule−electrode binding
    geometries of four pyridine-terminated molecules by elongating and then compressing
    gold point contacts in a solution of molecules. We have found that all pyridine-terminated
    molecules exhibit bistable conductance signatures, signifying that the nature
    of the pyridine−gold bond allows two distinct conductance states that are accessed
    as the gold−molecule−gold junction is elongated. We have identified the low-conductance
    state as corresponding to a molecule fully stretched out between the gold electrodes,
    where the distance between contacts correlates with the length of the molecule;
    the high-conductance state is due to a molecule bound at an angle. For all molecules,
    we have found that the distribution of junction elongations in the low-conductance
    state is the same, while in the high-conductance state, the most likely elongation
    length increases linearly with molecule length. The results of first-principles
    conductance calculations for the four molecules in the low-conductance geometry
    agree well with the experimental results and show that the dominant conducting
    channel in the conjugated pyridine-linked molecules is through the π* orbital.
article_processing_charge: No
article_type: original
author:
- first_name: M.
  full_name: Kamenetska, M.
  last_name: Kamenetska
- first_name: Su Ying
  full_name: Quek, Su Ying
  last_name: Quek
- first_name: A. C.
  full_name: Whalley, A. C.
  last_name: Whalley
- first_name: M. L.
  full_name: Steigerwald, M. L.
  last_name: Steigerwald
- first_name: H. J.
  full_name: Choi, H. J.
  last_name: Choi
- first_name: Steven G.
  full_name: Louie, Steven G.
  last_name: Louie
- first_name: C.
  full_name: Nuckolls, C.
  last_name: Nuckolls
- first_name: M. S.
  full_name: Hybertsen, M. S.
  last_name: Hybertsen
- first_name: J. B.
  full_name: Neaton, J. B.
  last_name: Neaton
- first_name: Latha
  full_name: Venkataraman, Latha
  id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
  last_name: Venkataraman
  orcid: 0000-0002-6957-6089
citation:
  ama: Kamenetska M, Quek SY, Whalley AC, et al. Conductance and geometry of pyridine-linked
    single-molecule junctions. <i>Journal of the American Chemical Society</i>. 2010;132(19):6817-6821.
    doi:<a href="https://doi.org/10.1021/ja1015348">10.1021/ja1015348</a>
  apa: Kamenetska, M., Quek, S. Y., Whalley, A. C., Steigerwald, M. L., Choi, H. J.,
    Louie, S. G., … Venkataraman, L. (2010). Conductance and geometry of pyridine-linked
    single-molecule junctions. <i>Journal of the American Chemical Society</i>. American
    Chemical Society. <a href="https://doi.org/10.1021/ja1015348">https://doi.org/10.1021/ja1015348</a>
  chicago: Kamenetska, M., Su Ying Quek, A. C. Whalley, M. L. Steigerwald, H. J. Choi,
    Steven G. Louie, C. Nuckolls, M. S. Hybertsen, J. B. Neaton, and Latha Venkataraman.
    “Conductance and Geometry of Pyridine-Linked Single-Molecule Junctions.” <i>Journal
    of the American Chemical Society</i>. American Chemical Society, 2010. <a href="https://doi.org/10.1021/ja1015348">https://doi.org/10.1021/ja1015348</a>.
  ieee: M. Kamenetska <i>et al.</i>, “Conductance and geometry of pyridine-linked
    single-molecule junctions,” <i>Journal of the American Chemical Society</i>, vol.
    132, no. 19. American Chemical Society, pp. 6817–6821, 2010.
  ista: Kamenetska M, Quek SY, Whalley AC, Steigerwald ML, Choi HJ, Louie SG, Nuckolls
    C, Hybertsen MS, Neaton JB, Venkataraman L. 2010. Conductance and geometry of
    pyridine-linked single-molecule junctions. Journal of the American Chemical Society.
    132(19), 6817–6821.
  mla: Kamenetska, M., et al. “Conductance and Geometry of Pyridine-Linked Single-Molecule
    Junctions.” <i>Journal of the American Chemical Society</i>, vol. 132, no. 19,
    American Chemical Society, 2010, pp. 6817–21, doi:<a href="https://doi.org/10.1021/ja1015348">10.1021/ja1015348</a>.
  short: M. Kamenetska, S.Y. Quek, A.C. Whalley, M.L. Steigerwald, H.J. Choi, S.G.
    Louie, C. Nuckolls, M.S. Hybertsen, J.B. Neaton, L. Venkataraman, Journal of the
    American Chemical Society 132 (2010) 6817–6821.
date_created: 2024-09-09T13:46:26Z
date_published: 2010-04-27T00:00:00Z
date_updated: 2025-01-03T10:09:53Z
day: '27'
doi: 10.1021/ja1015348
extern: '1'
external_id:
  pmid:
  - '20423080'
intvolume: '       132'
issue: '19'
language:
- iso: eng
month: '04'
oa_version: None
page: 6817-6821
pmid: 1
publication: Journal of the American Chemical Society
publication_identifier:
  eissn:
  - 1520-5126
  issn:
  - 0002-7863
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Conductance and geometry of pyridine-linked single-molecule junctions
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 132
year: '2010'
...
---
_id: '13420'
abstract:
- lang: eng
  text: Weakly protected metal nanoparticles (MNPs) are used as precursors for the
    preparation of catenane- and pseudorotaxane-decorated NPs of various compositions
    (gold, palladium, platinum). When attached to the surface of MNPs, the molecular
    switches retain their switching abilities. The redox potentials of these switches
    depend on and can be regulated by the composition of the mixed self-assembled
    monolayers covering the MNPs.
article_processing_charge: No
article_type: original
author:
- first_name: Rafal
  full_name: Klajn, Rafal
  id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
  last_name: Klajn
- first_name: Lei
  full_name: Fang, Lei
  last_name: Fang
- first_name: Ali
  full_name: Coskun, Ali
  last_name: Coskun
- first_name: Mark A.
  full_name: Olson, Mark A.
  last_name: Olson
- first_name: Paul J.
  full_name: Wesson, Paul J.
  last_name: Wesson
- first_name: J. Fraser
  full_name: Stoddart, J. Fraser
  last_name: Stoddart
- first_name: Bartosz A.
  full_name: Grzybowski, Bartosz A.
  last_name: Grzybowski
citation:
  ama: Klajn R, Fang L, Coskun A, et al. Metal nanoparticles functionalized with molecular
    and supramolecular switches. <i>Journal of the American Chemical Society</i>.
    2009;131(12):4233-4235. doi:<a href="https://doi.org/10.1021/ja9001585">10.1021/ja9001585</a>
  apa: Klajn, R., Fang, L., Coskun, A., Olson, M. A., Wesson, P. J., Stoddart, J.
    F., &#38; Grzybowski, B. A. (2009). Metal nanoparticles functionalized with molecular
    and supramolecular switches. <i>Journal of the American Chemical Society</i>.
    American Chemical Society. <a href="https://doi.org/10.1021/ja9001585">https://doi.org/10.1021/ja9001585</a>
  chicago: Klajn, Rafal, Lei Fang, Ali Coskun, Mark A. Olson, Paul J. Wesson, J. Fraser
    Stoddart, and Bartosz A. Grzybowski. “Metal Nanoparticles Functionalized with
    Molecular and Supramolecular Switches.” <i>Journal of the American Chemical Society</i>.
    American Chemical Society, 2009. <a href="https://doi.org/10.1021/ja9001585">https://doi.org/10.1021/ja9001585</a>.
  ieee: R. Klajn <i>et al.</i>, “Metal nanoparticles functionalized with molecular
    and supramolecular switches,” <i>Journal of the American Chemical Society</i>,
    vol. 131, no. 12. American Chemical Society, pp. 4233–4235, 2009.
  ista: Klajn R, Fang L, Coskun A, Olson MA, Wesson PJ, Stoddart JF, Grzybowski BA.
    2009. Metal nanoparticles functionalized with molecular and supramolecular switches.
    Journal of the American Chemical Society. 131(12), 4233–4235.
  mla: Klajn, Rafal, et al. “Metal Nanoparticles Functionalized with Molecular and
    Supramolecular Switches.” <i>Journal of the American Chemical Society</i>, vol.
    131, no. 12, American Chemical Society, 2009, pp. 4233–35, doi:<a href="https://doi.org/10.1021/ja9001585">10.1021/ja9001585</a>.
  short: R. Klajn, L. Fang, A. Coskun, M.A. Olson, P.J. Wesson, J.F. Stoddart, B.A.
    Grzybowski, Journal of the American Chemical Society 131 (2009) 4233–4235.
date_created: 2023-08-01T10:30:17Z
date_published: 2009-04-01T00:00:00Z
date_updated: 2023-08-08T09:06:00Z
day: '01'
doi: 10.1021/ja9001585
extern: '1'
external_id:
  pmid:
  - '19265400'
intvolume: '       131'
issue: '12'
keyword:
- Colloid and Surface Chemistry
- Biochemistry
- General Chemistry
- Catalysis
language:
- iso: eng
month: '04'
oa_version: None
page: 4233-4235
pmid: 1
publication: Journal of the American Chemical Society
publication_identifier:
  eissn:
  - 1520-5126
  issn:
  - 0002-7863
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Metal nanoparticles functionalized with molecular and supramolecular switches
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 131
year: '2009'
...
---
OA_type: closed access
_id: '18029'
abstract:
- lang: eng
  text: We compare the conductance of 1,4-bis(methylthio)benzene with that of 2,3,6,7-tetrahydrobenzo[1,2-b:4,5-b′]dithiophene
    and the conductance of 1,4-bis(methylseleno)benzene with that of 2,3,6,7-tetrahydrobenzo[1,2-b:4,5-b′]diselenophene
    and show explicitly that the orientation of an Au−S or Au−Se bond relative to
    the aromatic π system controls electron transport through conjugated molecules.
    Specifically, we have found that the conduction pathway connects the Au electrodes
    to the aromatic π-system via the chalcogen p lone pairs, and greater overlaps
    among these components lead to higher conductivity through the molecular junction.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Young S.
  full_name: Park, Young S.
  last_name: Park
- first_name: Jonathan R.
  full_name: Widawsky, Jonathan R.
  last_name: Widawsky
- first_name: Maria
  full_name: Kamenetska, Maria
  last_name: Kamenetska
- first_name: Michael L.
  full_name: Steigerwald, Michael L.
  last_name: Steigerwald
- first_name: Mark S.
  full_name: Hybertsen, Mark S.
  last_name: Hybertsen
- first_name: Colin
  full_name: Nuckolls, Colin
  last_name: Nuckolls
- first_name: Latha
  full_name: Venkataraman, Latha
  id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
  last_name: Venkataraman
  orcid: 0000-0002-6957-6089
citation:
  ama: Park YS, Widawsky JR, Kamenetska M, et al. Frustrated rotations in single-molecule
    junctions. <i>Journal of the American Chemical Society</i>. 2009;131(31):10820-10821.
    doi:<a href="https://doi.org/10.1021/ja903731m">10.1021/ja903731m</a>
  apa: Park, Y. S., Widawsky, J. R., Kamenetska, M., Steigerwald, M. L., Hybertsen,
    M. S., Nuckolls, C., &#38; Venkataraman, L. (2009). Frustrated rotations in single-molecule
    junctions. <i>Journal of the American Chemical Society</i>. American Chemical
    Society. <a href="https://doi.org/10.1021/ja903731m">https://doi.org/10.1021/ja903731m</a>
  chicago: Park, Young S., Jonathan R. Widawsky, Maria Kamenetska, Michael L. Steigerwald,
    Mark S. Hybertsen, Colin Nuckolls, and Latha Venkataraman. “Frustrated Rotations
    in Single-Molecule Junctions.” <i>Journal of the American Chemical Society</i>.
    American Chemical Society, 2009. <a href="https://doi.org/10.1021/ja903731m">https://doi.org/10.1021/ja903731m</a>.
  ieee: Y. S. Park <i>et al.</i>, “Frustrated rotations in single-molecule junctions,”
    <i>Journal of the American Chemical Society</i>, vol. 131, no. 31. American Chemical
    Society, pp. 10820–10821, 2009.
  ista: Park YS, Widawsky JR, Kamenetska M, Steigerwald ML, Hybertsen MS, Nuckolls
    C, Venkataraman L. 2009. Frustrated rotations in single-molecule junctions. Journal
    of the American Chemical Society. 131(31), 10820–10821.
  mla: Park, Young S., et al. “Frustrated Rotations in Single-Molecule Junctions.”
    <i>Journal of the American Chemical Society</i>, vol. 131, no. 31, American Chemical
    Society, 2009, pp. 10820–21, doi:<a href="https://doi.org/10.1021/ja903731m">10.1021/ja903731m</a>.
  short: Y.S. Park, J.R. Widawsky, M. Kamenetska, M.L. Steigerwald, M.S. Hybertsen,
    C. Nuckolls, L. Venkataraman, Journal of the American Chemical Society 131 (2009)
    10820–10821.
date_created: 2024-09-09T13:51:45Z
date_published: 2009-07-17T00:00:00Z
date_updated: 2025-01-03T10:14:29Z
day: '17'
doi: 10.1021/ja903731m
extern: '1'
external_id:
  pmid:
  - '19722660'
intvolume: '       131'
issue: '31'
language:
- iso: eng
month: '07'
oa_version: None
page: 10820-10821
pmid: 1
publication: Journal of the American Chemical Society
publication_identifier:
  eissn:
  - 1520-5126
  issn:
  - 0002-7863
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Frustrated rotations in single-molecule junctions
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 131
year: '2009'
...
---
OA_type: closed access
_id: '18035'
abstract:
- lang: eng
  text: We compare the low bias conductance of a series of alkanes terminated on their
    ends with dimethyl phosphines, methyl sulfides, and amines and find that junctions
    formed with dimethyl phosphine terminated alkanes have the highest conductance.
    We see unambiguous conductance signatures with these link groups, indicating that
    the binding is well-defined and electronically selective. This allows a detailed
    analysis of the single-molecule junction elongation properties which correlate
    well with calculations based on density functional theory.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Young S.
  full_name: Park, Young S.
  last_name: Park
- first_name: Adam C.
  full_name: Whalley, Adam C.
  last_name: Whalley
- first_name: Maria
  full_name: Kamenetska, Maria
  last_name: Kamenetska
- first_name: Michael L.
  full_name: Steigerwald, Michael L.
  last_name: Steigerwald
- first_name: Mark S.
  full_name: Hybertsen, Mark S.
  last_name: Hybertsen
- first_name: Colin
  full_name: Nuckolls, Colin
  last_name: Nuckolls
- first_name: Latha
  full_name: Venkataraman, Latha
  id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
  last_name: Venkataraman
  orcid: 0000-0002-6957-6089
citation:
  ama: Park YS, Whalley AC, Kamenetska M, et al. Contact chemistry and single-molecule
    conductance:  A comparison of phosphines, methyl sulfides, and amines. <i>Journal
    of the American Chemical Society</i>. 2007;129(51):15768-15769. doi:<a href="https://doi.org/10.1021/ja0773857">10.1021/ja0773857</a>
  apa: Park, Y. S., Whalley, A. C., Kamenetska, M., Steigerwald, M. L., Hybertsen,
    M. S., Nuckolls, C., &#38; Venkataraman, L. (2007). Contact chemistry and single-molecule
    conductance:  A comparison of phosphines, methyl sulfides, and amines. <i>Journal
    of the American Chemical Society</i>. American Chemical Society. <a href="https://doi.org/10.1021/ja0773857">https://doi.org/10.1021/ja0773857</a>
  chicago: Park, Young S., Adam C. Whalley, Maria Kamenetska, Michael L. Steigerwald,
    Mark S. Hybertsen, Colin Nuckolls, and Latha Venkataraman. “Contact Chemistry
    and Single-Molecule Conductance:  A Comparison of Phosphines, Methyl Sulfides,
    and Amines.” <i>Journal of the American Chemical Society</i>. American Chemical
    Society, 2007. <a href="https://doi.org/10.1021/ja0773857">https://doi.org/10.1021/ja0773857</a>.
  ieee: Y. S. Park <i>et al.</i>, “Contact chemistry and single-molecule conductance: 
    A comparison of phosphines, methyl sulfides, and amines,” <i>Journal of the American
    Chemical Society</i>, vol. 129, no. 51. American Chemical Society, pp. 15768–15769,
    2007.
  ista: Park YS, Whalley AC, Kamenetska M, Steigerwald ML, Hybertsen MS, Nuckolls
    C, Venkataraman L. 2007. Contact chemistry and single-molecule conductance:  A
    comparison of phosphines, methyl sulfides, and amines. Journal of the American
    Chemical Society. 129(51), 15768–15769.
  mla: Park, Young S., et al. “Contact Chemistry and Single-Molecule Conductance: 
    A Comparison of Phosphines, Methyl Sulfides, and Amines.” <i>Journal of the American
    Chemical Society</i>, vol. 129, no. 51, American Chemical Society, 2007, pp. 15768–69,
    doi:<a href="https://doi.org/10.1021/ja0773857">10.1021/ja0773857</a>.
  short: Y.S. Park, A.C. Whalley, M. Kamenetska, M.L. Steigerwald, M.S. Hybertsen,
    C. Nuckolls, L. Venkataraman, Journal of the American Chemical Society 129 (2007)
    15768–15769.
date_created: 2024-09-09T14:44:32Z
date_published: 2007-12-05T00:00:00Z
date_updated: 2025-01-03T10:59:43Z
day: '05'
doi: 10.1021/ja0773857
extern: '1'
external_id:
  pmid:
  - '18052282'
intvolume: '       129'
issue: '51'
language:
- iso: eng
month: '12'
oa_version: None
page: 15768-15769
pmid: 1
publication: Journal of the American Chemical Society
publication_identifier:
  eissn:
  - 1520-5126
  issn:
  - 0002-7863
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Contact chemistry and single-molecule conductance:  A comparison of phosphines,
  methyl sulfides, and amines
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 129
year: '2007'
...
---
OA_type: closed access
_id: '18038'
abstract:
- lang: eng
  text: Cyclic voltammetry determines first and second oxidation potentials of conducting
    diamines. The results show that unsubstituted and methyl-substituted molecules
    conduct electricity in partially positively charged states, reflecting electron
    delocalization at the wire−gold junctions, but with electron-withdrawing substituents,
    the molecular wires are closer to uncharged as conductors, consistent with HOMO
    arguments.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Jordan R.
  full_name: Quinn, Jordan R.
  last_name: Quinn
- first_name: Frank W.
  full_name: Foss, Frank W.
  last_name: Foss
- first_name: Latha
  full_name: Venkataraman, Latha
  id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
  last_name: Venkataraman
  orcid: 0000-0002-6957-6089
- first_name: Ronald
  full_name: Breslow, Ronald
  last_name: Breslow
citation:
  ama: Quinn JR, Foss FW, Venkataraman L, Breslow R. Oxidation potentials correlate
    with conductivities of aromatic molecular wires. <i>Journal of the American Chemical
    Society</i>. 2007;129(41):12376-12377. doi:<a href="https://doi.org/10.1021/ja0745097">10.1021/ja0745097</a>
  apa: Quinn, J. R., Foss, F. W., Venkataraman, L., &#38; Breslow, R. (2007). Oxidation
    potentials correlate with conductivities of aromatic molecular wires. <i>Journal
    of the American Chemical Society</i>. American Chemical Society. <a href="https://doi.org/10.1021/ja0745097">https://doi.org/10.1021/ja0745097</a>
  chicago: Quinn, Jordan R., Frank W. Foss, Latha Venkataraman, and Ronald Breslow.
    “Oxidation Potentials Correlate with Conductivities of Aromatic Molecular Wires.”
    <i>Journal of the American Chemical Society</i>. American Chemical Society, 2007.
    <a href="https://doi.org/10.1021/ja0745097">https://doi.org/10.1021/ja0745097</a>.
  ieee: J. R. Quinn, F. W. Foss, L. Venkataraman, and R. Breslow, “Oxidation potentials
    correlate with conductivities of aromatic molecular wires,” <i>Journal of the
    American Chemical Society</i>, vol. 129, no. 41. American Chemical Society, pp.
    12376–12377, 2007.
  ista: Quinn JR, Foss FW, Venkataraman L, Breslow R. 2007. Oxidation potentials correlate
    with conductivities of aromatic molecular wires. Journal of the American Chemical
    Society. 129(41), 12376–12377.
  mla: Quinn, Jordan R., et al. “Oxidation Potentials Correlate with Conductivities
    of Aromatic Molecular Wires.” <i>Journal of the American Chemical Society</i>,
    vol. 129, no. 41, American Chemical Society, 2007, pp. 12376–77, doi:<a href="https://doi.org/10.1021/ja0745097">10.1021/ja0745097</a>.
  short: J.R. Quinn, F.W. Foss, L. Venkataraman, R. Breslow, Journal of the American
    Chemical Society 129 (2007) 12376–12377.
date_created: 2024-09-09T14:52:57Z
date_published: 2007-09-22T00:00:00Z
date_updated: 2025-01-03T11:06:28Z
day: '22'
doi: 10.1021/ja0745097
extern: '1'
external_id:
  pmid:
  - '17887757'
intvolume: '       129'
issue: '41'
language:
- iso: eng
month: '09'
oa_version: None
page: 12376-12377
pmid: 1
publication: Journal of the American Chemical Society
publication_identifier:
  eissn:
  - 1520-5126
  issn:
  - 0002-7863
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Oxidation potentials correlate with conductivities of aromatic molecular wires
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 129
year: '2007'
...
---
OA_place: repository
OA_type: green
_id: '18039'
abstract:
- lang: eng
  text: Conductivities have been measured for diaminoacenes with benzene, naphthalene,
    and anthracene rings. The conductivities were strong functions of the placement
    of the amino group contact points for the gold electrodes. There was good correlation
    with quantum-mechanical theory, and with the stabilities of the related mono-
    and dications of the molecules. It is proposed that some electron abstraction
    by the drain precedes electron donation by the source with these electron-rich
    systems.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jordan R.
  full_name: Quinn, Jordan R.
  last_name: Quinn
- first_name: Frank W.
  full_name: Foss, Frank W.
  last_name: Foss
- first_name: Latha
  full_name: Venkataraman, Latha
  id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
  last_name: Venkataraman
  orcid: 0000-0002-6957-6089
- first_name: Mark S.
  full_name: Hybertsen, Mark S.
  last_name: Hybertsen
- first_name: Ronald
  full_name: Breslow, Ronald
  last_name: Breslow
citation:
  ama: Quinn JR, Foss FW, Venkataraman L, Hybertsen MS, Breslow R. Single-molecule
    junction conductance through diaminoacenes. <i>Journal of the American Chemical
    Society</i>. 2007;129(21):6714-6715. doi:<a href="https://doi.org/10.1021/ja0715804">10.1021/ja0715804</a>
  apa: Quinn, J. R., Foss, F. W., Venkataraman, L., Hybertsen, M. S., &#38; Breslow,
    R. (2007). Single-molecule junction conductance through diaminoacenes. <i>Journal
    of the American Chemical Society</i>. American Chemical Society. <a href="https://doi.org/10.1021/ja0715804">https://doi.org/10.1021/ja0715804</a>
  chicago: Quinn, Jordan R., Frank W. Foss, Latha Venkataraman, Mark S. Hybertsen,
    and Ronald Breslow. “Single-Molecule Junction Conductance through Diaminoacenes.”
    <i>Journal of the American Chemical Society</i>. American Chemical Society, 2007.
    <a href="https://doi.org/10.1021/ja0715804">https://doi.org/10.1021/ja0715804</a>.
  ieee: J. R. Quinn, F. W. Foss, L. Venkataraman, M. S. Hybertsen, and R. Breslow,
    “Single-molecule junction conductance through diaminoacenes,” <i>Journal of the
    American Chemical Society</i>, vol. 129, no. 21. American Chemical Society, pp.
    6714–6715, 2007.
  ista: Quinn JR, Foss FW, Venkataraman L, Hybertsen MS, Breslow R. 2007. Single-molecule
    junction conductance through diaminoacenes. Journal of the American Chemical Society.
    129(21), 6714–6715.
  mla: Quinn, Jordan R., et al. “Single-Molecule Junction Conductance through Diaminoacenes.”
    <i>Journal of the American Chemical Society</i>, vol. 129, no. 21, American Chemical
    Society, 2007, pp. 6714–15, doi:<a href="https://doi.org/10.1021/ja0715804">10.1021/ja0715804</a>.
  short: J.R. Quinn, F.W. Foss, L. Venkataraman, M.S. Hybertsen, R. Breslow, Journal
    of the American Chemical Society 129 (2007) 6714–6715.
date_created: 2024-09-09T14:53:43Z
date_published: 2007-05-09T00:00:00Z
date_updated: 2025-01-03T11:08:39Z
day: '09'
doi: 10.1021/ja0715804
extern: '1'
external_id:
  arxiv:
  - '0705.3374'
  pmid:
  - '17488083'
intvolume: '       129'
issue: '21'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/0705.3374
month: '05'
oa: 1
oa_version: Preprint
page: 6714-6715
pmid: 1
publication: Journal of the American Chemical Society
publication_identifier:
  eissn:
  - 1520-5126
  issn:
  - 0002-7863
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Single-molecule junction conductance through diaminoacenes
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 129
year: '2007'
...
---
_id: '13428'
abstract:
- lang: eng
  text: Mixtures of oppositely charged nanoparticles of various sizes and charge ratios
    precipitate only at the point of electroneutrality. This phenomenonspecific to
    the nanoscale and reminiscent of threshold precipitation of ionsis a consequence
    of the formation of core-and-shell nanoparticle aggregates, in which the shells
    are composed of like-charged particles and are stabilized by efficient electrostatic
    screening.
article_processing_charge: No
article_type: original
author:
- first_name: Alexander M.
  full_name: Kalsin, Alexander M.
  last_name: Kalsin
- first_name: Bartlomiej
  full_name: Kowalczyk, Bartlomiej
  last_name: Kowalczyk
- first_name: Stoyan K.
  full_name: Smoukov, Stoyan K.
  last_name: Smoukov
- first_name: Rafal
  full_name: Klajn, Rafal
  id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
  last_name: Klajn
- first_name: Bartosz A.
  full_name: Grzybowski, Bartosz A.
  last_name: Grzybowski
citation:
  ama: Kalsin AM, Kowalczyk B, Smoukov SK, Klajn R, Grzybowski BA. Ionic-like behavior
    of oppositely charged nanoparticles. <i>Journal of the American Chemical Society</i>.
    2006;128(47):15046-15047. doi:<a href="https://doi.org/10.1021/ja0642966">10.1021/ja0642966</a>
  apa: Kalsin, A. M., Kowalczyk, B., Smoukov, S. K., Klajn, R., &#38; Grzybowski,
    B. A. (2006). Ionic-like behavior of oppositely charged nanoparticles. <i>Journal
    of the American Chemical Society</i>. American Chemical Society. <a href="https://doi.org/10.1021/ja0642966">https://doi.org/10.1021/ja0642966</a>
  chicago: Kalsin, Alexander M., Bartlomiej Kowalczyk, Stoyan K. Smoukov, Rafal Klajn,
    and Bartosz A. Grzybowski. “Ionic-like Behavior of Oppositely Charged Nanoparticles.”
    <i>Journal of the American Chemical Society</i>. American Chemical Society, 2006.
    <a href="https://doi.org/10.1021/ja0642966">https://doi.org/10.1021/ja0642966</a>.
  ieee: A. M. Kalsin, B. Kowalczyk, S. K. Smoukov, R. Klajn, and B. A. Grzybowski,
    “Ionic-like behavior of oppositely charged nanoparticles,” <i>Journal of the American
    Chemical Society</i>, vol. 128, no. 47. American Chemical Society, pp. 15046–15047,
    2006.
  ista: Kalsin AM, Kowalczyk B, Smoukov SK, Klajn R, Grzybowski BA. 2006. Ionic-like
    behavior of oppositely charged nanoparticles. Journal of the American Chemical
    Society. 128(47), 15046–15047.
  mla: Kalsin, Alexander M., et al. “Ionic-like Behavior of Oppositely Charged Nanoparticles.”
    <i>Journal of the American Chemical Society</i>, vol. 128, no. 47, American Chemical
    Society, 2006, pp. 15046–47, doi:<a href="https://doi.org/10.1021/ja0642966">10.1021/ja0642966</a>.
  short: A.M. Kalsin, B. Kowalczyk, S.K. Smoukov, R. Klajn, B.A. Grzybowski, Journal
    of the American Chemical Society 128 (2006) 15046–15047.
date_created: 2023-08-01T10:36:27Z
date_published: 2006-11-29T00:00:00Z
date_updated: 2023-08-08T11:30:06Z
day: '29'
doi: 10.1021/ja0642966
extern: '1'
external_id:
  pmid:
  - '17117829'
intvolume: '       128'
issue: '47'
keyword:
- Colloid and Surface Chemistry
- Biochemistry
- General Chemistry
- Catalysis
language:
- iso: eng
month: '11'
oa_version: None
page: 15046-15047
pmid: 1
publication: Journal of the American Chemical Society
publication_identifier:
  eissn:
  - 1520-5126
  issn:
  - 0002-7863
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Ionic-like behavior of oppositely charged nanoparticles
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 128
year: '2006'
...