{"article_type":"original","author":[{"first_name":"Jeffrey S.","full_name":"Meisner, Jeffrey S.","last_name":"Meisner"},{"last_name":"Ahn","first_name":"Seokhoon","full_name":"Ahn, Seokhoon"},{"last_name":"Aradhya","first_name":"Sriharsha V.","full_name":"Aradhya, Sriharsha V."},{"full_name":"Krikorian, Markrete","first_name":"Markrete","last_name":"Krikorian"},{"last_name":"Parameswaran","full_name":"Parameswaran, Radha","first_name":"Radha"},{"first_name":"Michael","full_name":"Steigerwald, Michael","last_name":"Steigerwald"},{"last_name":"Venkataraman","id":"9ebb78a5-cc0d-11ee-8322-fae086a32caf","orcid":"0000-0002-6957-6089","full_name":"Venkataraman, Latha","first_name":"Latha"},{"full_name":"Nuckolls, Colin","first_name":"Colin","last_name":"Nuckolls"}],"oa_version":"None","extern":"1","intvolume":"       134","abstract":[{"lang":"eng","text":"We study the effects of molecular structure on the electronic transport and mechanical stability of single-molecule junctions formed with Au point contacts. Two types of linear conjugated molecular wires are compared: those functionalized with methylsulfide or amine aurophilic groups at (1) both or (2) only one of its phenyl termini. Using scanning tunneling and atomic force microscope break-junction techniques, the conductance of mono- and difunctionalized molecular wires and its dependence on junction elongation and rupture forces were studied. Charge transport through monofunctionalized wires is observed when the molecular bridge is coupled through a S–Au donor–acceptor bond on one end and a relatively weak Au−π interaction on the other end. For monofunctionalized molecular wires, junctions can be mechanically stabilized by installing a second aurophilic group at the meta position that, however, does not in itself contribute to a new conduction pathway. These results reveal the important interplay between electronic coupling through metal−π interactions and quantum mechanical effects introduced by chemical substitution on the conjugated system. This study affords a strategy to deterministically tune the electrical and mechanical properties through molecular wires."}],"external_id":{"pmid":["23167533"]},"day":"21","publication":"Journal of the American Chemical Society","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","language":[{"iso":"eng"}],"article_processing_charge":"No","citation":{"apa":"Meisner, J. S., Ahn, S., Aradhya, S. V., Krikorian, M., Parameswaran, R., Steigerwald, M., … Nuckolls, C. (2012). Importance of direct metal−π coupling in electronic transport through conjugated single-molecule junctions. <i>Journal of the American Chemical Society</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/ja308626m\">https://doi.org/10.1021/ja308626m</a>","chicago":"Meisner, Jeffrey S., Seokhoon Ahn, Sriharsha V. Aradhya, Markrete Krikorian, Radha Parameswaran, Michael Steigerwald, Latha Venkataraman, and Colin Nuckolls. “Importance of Direct Metal−π Coupling in Electronic Transport through Conjugated Single-Molecule Junctions.” <i>Journal of the American Chemical Society</i>. American Chemical Society, 2012. <a href=\"https://doi.org/10.1021/ja308626m\">https://doi.org/10.1021/ja308626m</a>.","ista":"Meisner JS, Ahn S, Aradhya SV, Krikorian M, Parameswaran R, Steigerwald M, Venkataraman L, Nuckolls C. 2012. Importance of direct metal−π coupling in electronic transport through conjugated single-molecule junctions. Journal of the American Chemical Society. 134(50), 20440–20445.","short":"J.S. Meisner, S. Ahn, S.V. Aradhya, M. Krikorian, R. Parameswaran, M. Steigerwald, L. Venkataraman, C. Nuckolls, Journal of the American Chemical Society 134 (2012) 20440–20445.","mla":"Meisner, Jeffrey S., et al. “Importance of Direct Metal−π Coupling in Electronic Transport through Conjugated Single-Molecule Junctions.” <i>Journal of the American Chemical Society</i>, vol. 134, no. 50, American Chemical Society, 2012, pp. 20440–45, doi:<a href=\"https://doi.org/10.1021/ja308626m\">10.1021/ja308626m</a>.","ieee":"J. S. Meisner <i>et al.</i>, “Importance of direct metal−π coupling in electronic transport through conjugated single-molecule junctions,” <i>Journal of the American Chemical Society</i>, vol. 134, no. 50. American Chemical Society, pp. 20440–20445, 2012.","ama":"Meisner JS, Ahn S, Aradhya SV, et al. Importance of direct metal−π coupling in electronic transport through conjugated single-molecule junctions. <i>Journal of the American Chemical Society</i>. 2012;134(50):20440-20445. doi:<a href=\"https://doi.org/10.1021/ja308626m\">10.1021/ja308626m</a>"},"page":"20440-20445","year":"2012","OA_type":"closed access","volume":134,"publisher":"American Chemical Society","date_published":"2012-11-21T00:00:00Z","date_created":"2024-09-09T11:39:25Z","date_updated":"2025-01-03T08:54:09Z","scopus_import":"1","publication_identifier":{"issn":["0002-7863"],"eissn":["1520-5126"]},"pmid":1,"status":"public","month":"11","issue":"50","_id":"18001","publication_status":"published","doi":"10.1021/ja308626m","quality_controlled":"1","title":"Importance of direct metal−π coupling in electronic transport through conjugated single-molecule junctions","type":"journal_article"}