{"abstract":[{"text":"We measure the conductance of amine-terminated molecules by breaking Au point contacts in a molecular solution at room temperature. We find that the variability of the observed conductance for the diamine molecule−Au junctions is much less than the variability for diisonitrile− and dithiol−Au junctions. This narrow distribution enables unambiguous conductance measurements of single molecules. For an alkane diamine series with 2−8 carbon atoms in the hydrocarbon chain, our results show a systematic trend in the conductance from which we extract a tunneling decay constant of 0.91 ± 0.03 per methylene group. We hypothesize that the diamine link binds preferentially to undercoordinated Au atoms in the junction. This is supported by density functional theory-based calculations that show the amine binding to a gold adatom with sufficient angular flexibility for easy junction formation but well-defined electronic coupling of the N lone pair to the Au. Therefore, the amine linkage leads to well-defined conductance measurements of a single molecule junction in a statistical study.","lang":"eng"}],"date_published":"2006-02-01T00:00:00Z","day":"01","OA_type":"green","issue":"3","oa":1,"extern":"1","status":"public","publisher":"American Chemical Society","page":"458-462","main_file_link":[{"url":"https://arxiv.org/abs/cond-mat/0603281","open_access":"1"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"id":"9ebb78a5-cc0d-11ee-8322-fae086a32caf","last_name":"Venkataraman","first_name":"Latha","full_name":"Venkataraman, Latha","orcid":"0000-0002-6957-6089"},{"full_name":"Klare, Jennifer E.","last_name":"Klare","first_name":"Jennifer E."},{"full_name":"Tam, Iris W.","last_name":"Tam","first_name":"Iris W."},{"full_name":"Nuckolls, Colin","first_name":"Colin","last_name":"Nuckolls"},{"full_name":"Hybertsen, Mark S.","last_name":"Hybertsen","first_name":"Mark S."},{"full_name":"Steigerwald, Michael L.","last_name":"Steigerwald","first_name":"Michael L."}],"language":[{"iso":"eng"}],"year":"2006","article_processing_charge":"No","arxiv":1,"intvolume":"         6","doi":"10.1021/nl052373+","article_type":"letter_note","quality_controlled":"1","date_created":"2024-09-09T15:09:24Z","type":"journal_article","external_id":{"arxiv":["cond-mat/0603281"]},"publication_identifier":{"eissn":["1530-6992"],"issn":["1530-6984"]},"month":"02","publication_status":"published","OA_place":"repository","volume":6,"oa_version":"Preprint","citation":{"ista":"Venkataraman L, Klare JE, Tam IW, Nuckolls C, Hybertsen MS, Steigerwald ML. 2006. Single-molecule circuits with well-defined molecular conductance. Nano Letters. 6(3), 458–462.","ama":"Venkataraman L, Klare JE, Tam IW, Nuckolls C, Hybertsen MS, Steigerwald ML. Single-molecule circuits with well-defined molecular conductance. <i>Nano Letters</i>. 2006;6(3):458-462. doi:<a href=\"https://doi.org/10.1021/nl052373+\">10.1021/nl052373+</a>","ieee":"L. Venkataraman, J. E. Klare, I. W. Tam, C. Nuckolls, M. S. Hybertsen, and M. L. Steigerwald, “Single-molecule circuits with well-defined molecular conductance,” <i>Nano Letters</i>, vol. 6, no. 3. American Chemical Society, pp. 458–462, 2006.","mla":"Venkataraman, Latha, et al. “Single-Molecule Circuits with Well-Defined Molecular Conductance.” <i>Nano Letters</i>, vol. 6, no. 3, American Chemical Society, 2006, pp. 458–62, doi:<a href=\"https://doi.org/10.1021/nl052373+\">10.1021/nl052373+</a>.","chicago":"Venkataraman, Latha, Jennifer E. Klare, Iris W. Tam, Colin Nuckolls, Mark S. Hybertsen, and Michael L. Steigerwald. “Single-Molecule Circuits with Well-Defined Molecular Conductance.” <i>Nano Letters</i>. American Chemical Society, 2006. <a href=\"https://doi.org/10.1021/nl052373+\">https://doi.org/10.1021/nl052373+</a>.","short":"L. Venkataraman, J.E. Klare, I.W. Tam, C. Nuckolls, M.S. Hybertsen, M.L. Steigerwald, Nano Letters 6 (2006) 458–462.","apa":"Venkataraman, L., Klare, J. E., Tam, I. W., Nuckolls, C., Hybertsen, M. S., &#38; Steigerwald, M. L. (2006). Single-molecule circuits with well-defined molecular conductance. <i>Nano Letters</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/nl052373+\">https://doi.org/10.1021/nl052373+</a>"},"title":"Single-molecule circuits with well-defined molecular conductance","date_updated":"2025-01-03T11:19:52Z","publication":"Nano Letters","_id":"18043","scopus_import":"1"}