---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '22975'
abstract:
- lang: eng
  text: Conjugated molecules with diradical character have emerged as promising building
    blocks for high-conductance single-molecule electronics because of their behavior
    as 1D topological insulators. However, the impact of antiaromaticity on these
    radical-based edge states has not been explored. Here, we introduce thiophene-based
    molecular wires that exhibit intrinsic diradical character in their ground state
    under ambient conditions and systematically investigate how their conductance
    responds to changes in aromaticity upon the oxidation of fluorene-based flanking
    moieties. Using scanning tunneling microscopy-based break junction (STM-BJ) techniques,
    we show that the conductance increases with molecular length in the neutral state,
    supporting one-dimensional topological behavior. We further examine the effect
    of oxidation on conductance through three complementary methods, revealing substantial
    conductance enhancements that we attribute to an increase in the antiaromatic
    character of the wires. Together, these findings establish a rational design strategy
    for highly conducting, electrochemically switchable molecular junctions, with
    implications for single-molecule electronics.
acknowledgement: This work was supported in part by the National Science Foundation
  under grant DMR-2241180 and the Institute of Science and Technology Austria. L.M.C.
  thanks the National Science Foundation for funding under award DMR-2453907. Open
  access funding provided by Institute of Science and Technology Austria.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Woojung
  full_name: Lee, Woojung
  last_name: Lee
- first_name: Wanzhuo
  full_name: Shi, Wanzhuo
  id: a3010425-87c8-11f0-8106-bec32bea74da
  last_name: Shi
- first_name: Junho
  full_name: Kwon, Junho
  last_name: Kwon
- first_name: Jonathan
  full_name: Low, Jonathan
  last_name: Low
- first_name: Sujun
  full_name: Wei, Sujun
  last_name: Wei
- first_name: Xiaodong
  full_name: Yin, Xiaodong
  last_name: Yin
- first_name: Luis M.
  full_name: Campos, Luis M.
  last_name: Campos
- first_name: Latha
  full_name: Venkataraman, Latha
  id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
  last_name: Venkataraman
  orcid: 0000-0002-6957-6089
citation:
  ama: Lee W, Shi W, Kwon J, et al. Redox-driven antiaromaticity enables multistate
    conductancein 1D topological insulators. <i>Journal of the AmericanChemical Society</i>.
    2026;148(37):40536–40542. doi:<a href="https://doi.org/10.1021/jacs.6c15721">10.1021/jacs.6c15721</a>
  apa: Lee, W., Shi, W., Kwon, J., Low, J., Wei, S., Yin, X., … Venkataraman, L. (2026).
    Redox-driven antiaromaticity enables multistate conductancein 1D topological insulators.
    <i>Journal of the AmericanChemical Society</i>. American Chemical Society. <a
    href="https://doi.org/10.1021/jacs.6c15721">https://doi.org/10.1021/jacs.6c15721</a>
  chicago: Lee, Woojung, Wanzhuo Shi, Junho Kwon, Jonathan Low, Sujun Wei, Xiaodong
    Yin, Luis M. Campos, and Latha Venkataraman. “Redox-Driven Antiaromaticity Enables
    Multistate Conductancein 1D Topological Insulators.” <i>Journal of the AmericanChemical
    Society</i>. American Chemical Society, 2026. <a href="https://doi.org/10.1021/jacs.6c15721">https://doi.org/10.1021/jacs.6c15721</a>.
  ieee: W. Lee <i>et al.</i>, “Redox-driven antiaromaticity enables multistate conductancein
    1D topological insulators,” <i>Journal of the AmericanChemical Society</i>, vol.
    148, no. 37. American Chemical Society, pp. 40536–40542, 2026.
  ista: Lee W, Shi W, Kwon J, Low J, Wei S, Yin X, Campos LM, Venkataraman L. 2026.
    Redox-driven antiaromaticity enables multistate conductancein 1D topological insulators.
    Journal of the AmericanChemical Society. 148(37), 40536–40542.
  mla: Lee, Woojung, et al. “Redox-Driven Antiaromaticity Enables Multistate Conductancein
    1D Topological Insulators.” <i>Journal of the AmericanChemical Society</i>, vol.
    148, no. 37, American Chemical Society, 2026, pp. 40536–40542, doi:<a href="https://doi.org/10.1021/jacs.6c15721">10.1021/jacs.6c15721</a>.
  short: W. Lee, W. Shi, J. Kwon, J. Low, S. Wei, X. Yin, L.M. Campos, L. Venkataraman,
    Journal of the AmericanChemical Society 148 (2026) 40536–40542.
corr_author: '1'
das_tickbox: '0'
date_created: 2026-09-22T05:46:30Z
date_published: 2026-09-07T00:00:00Z
date_updated: 2026-10-06T13:14:11Z
day: '07'
ddc:
- '540'
department:
- _id: LaVe
doi: 10.1021/jacs.6c15721
file:
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  creator: dernst
  date_created: 2026-10-06T13:10:49Z
  date_updated: 2026-10-06T13:10:49Z
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  file_size: 3646582
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file_date_updated: 2026-10-06T13:10:49Z
fulldoi: https://doi.org/10.1021/jacs.6c15721
has_accepted_license: '1'
intvolume: '       148'
issue: '37'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '09'
oa: 1
oa_version: Published Version
page: 40536–40542
publication: Journal of the AmericanChemical Society
publication_identifier:
  eissn:
  - 1520-5126
  issn:
  - 0002-7863
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: yes
title: Redox-driven antiaromaticity enables multistate conductancein 1D topological
  insulators
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 148
year: '2026'
...