Trimethyltin-Mediated Covalent Gold-Carbon Bond Formation.
We study the formation of covalent gold-carbon bonds in benzyltrimethylstannane (CHSn) deposited on Au in ultra-high-vacuum conditions. Through X-ray photoemission spectroscopy and X-ray absorption measurements, we find that the molecule fragments at the Sn—benzyl bond when exposed to Au surfaces at...
| Publicado en: | Journal of the American Chemical Society Vol. 136; no. 36; pp. 12556 - 12560 |
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| Autores principales: | , , , , , , , , , |
| Formato: | Artículo |
| Publicado: |
American Chemical Society
9/10/2014
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=98889116&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 98889116 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 9/10/2014 vid: 136 iid: 36 pid: 997 pub: American Chemical Society artinfo: ui: 98889116 10.1021/ja5061406 ppf: 12556 ppct: 4 formats: tig: atl: Trimethyltin-Mediated Covalent Gold-Carbon Bond Formation. aug: au: Batra, Arunabh Kladnik, Gregor Gorjizadeh, Narjes Meisner, Jeffrey Steigerwald, Michael Nuckolls, Colin Su Ying Quek Cvetko, Dean Morgante, Alberto Venkataraman, Latha affil: Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, United States CNR-IOM Laboratorio Nazionale TASC, 1-34012 Trieste, Italy Department of Physics, University of Trieste, 1-34127 Trieste, Italy Department of Physics, National University of Singapore, 117551 Singapore Institute of High Performance Computing, Agency for Science, Technology and Research-A*STAR, 138632 Singapore Department of Chemistry, Columbia University, New York, New York 10027, United States Department of Physics, University of Ljubljana, SI-1000 Ljubljana, Slovenia su: Chemical bonds Gold Carbon Benzyl compounds Photoelectron spectroscopy sug: subj: Chemical bonds Gold Carbon Benzyl compounds Photoelectron spectroscopy ab: We study the formation of covalent gold-carbon bonds in benzyltrimethylstannane (CHSn) deposited on Au in ultra-high-vacuum conditions. Through X-ray photoemission spectroscopy and X-ray absorption measurements, we find that the molecule fragments at the Sn—benzyl bond when exposed to Au surfaces at temperatures as low as -110 °C. The resulting benzyl species is stabilized by the presence of Au (111) but only forms covalent Au-C bonds on more reactive Au surfaces like Au(110). We also present spectroscopic proof for the existence of an electronic “gateway” state localized on the Au-C bond that is responsible for its unique electronic properties. Finally, we use DFT-based nudged elastic band calculations to elucidate the crucial role played by the under-coordinated Au surface in the formation of Au-C bonds. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2014 holdings: @attributes: islocal: N |
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