[{"_id":"18027","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication":"Journal of the American Chemical Society","volume":132,"publication_identifier":{"eissn":["1520-5126"],"issn":["0002-7863"]},"page":"6817-6821","type":"journal_article","intvolume":"       132","scopus_import":"1","oa_version":"None","status":"public","author":[{"first_name":"M.","full_name":"Kamenetska, M.","last_name":"Kamenetska"},{"first_name":"Su Ying","full_name":"Quek, Su Ying","last_name":"Quek"},{"last_name":"Whalley","full_name":"Whalley, A. C.","first_name":"A. C."},{"full_name":"Steigerwald, M. L.","last_name":"Steigerwald","first_name":"M. L."},{"last_name":"Choi","full_name":"Choi, H. J.","first_name":"H. J."},{"last_name":"Louie","full_name":"Louie, Steven G.","first_name":"Steven G."},{"last_name":"Nuckolls","full_name":"Nuckolls, C.","first_name":"C."},{"full_name":"Hybertsen, M. S.","last_name":"Hybertsen","first_name":"M. S."},{"first_name":"J. B.","full_name":"Neaton, J. B.","last_name":"Neaton"},{"id":"9ebb78a5-cc0d-11ee-8322-fae086a32caf","orcid":"0000-0002-6957-6089","first_name":"Latha","last_name":"Venkataraman","full_name":"Venkataraman, Latha"}],"quality_controlled":"1","pmid":1,"date_created":"2024-09-09T13:46:26Z","external_id":{"pmid":["20423080"]},"title":"Conductance and geometry of pyridine-linked single-molecule junctions","issue":"19","publisher":"American Chemical Society","OA_type":"closed access","article_processing_charge":"No","publication_status":"published","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."}],"year":"2010","doi":"10.1021/ja1015348","article_type":"original","month":"04","date_published":"2010-04-27T00:00:00Z","date_updated":"2025-01-03T10:09:53Z","day":"27","citation":{"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>","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.","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>.","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>"},"extern":"1","language":[{"iso":"eng"}]}]