Isolation of Bridging and Terminal Coinage Metal鈥揘itrene Complexes

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• 作者：Fabian Dielmann ; Diego M. Andrada ; Gernot Frenking ; Guy Bertrand
• 刊名：Journal of the American Chemical Society
• 出版年：2014
• 出版时间：March 12, 2014
• 年：2014
• 卷：136
• 期：10
• 页码：3800-3802
• 全文大小：252K
• 年卷期：v.136,no.10(March 12, 2014)
• ISSN：1520-5126

文摘

Transition metal complexes featuring a metal鈥搉itrogen multiple bond have been widely studied due to their implication in dinitrogen fixation and catalytic nitrogen鈥揷arbon bond formation. Terminal copper鈥?and silver鈥搉itrene complexes have long been proposed to be the key intermediates in aziridination and amination reactions using azides as the nitrogen source. However, due to their high reactivity, these species have eluded isolation and spectroscopic characterization even at low temperatures. In this paper we report that a stable phosphinonitrene reacts with coinage metal trifluoromethanesulfonates, affording bridging and terminal copper鈥?and silver鈥搉itrene complexes, which are characterized by NMR spectroscopy and single crystal X-ray diffraction analysis.