Gold(I) Complexes Bearing Sterically Imposing, Saturated Six- and Seven-Membered Expanded Ring N-Heterocyclic Carbene Ligands

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• 作者：Jay J. Dunsford ; Kingsley J. Cavell ; Benson M. Kariuki
• 刊名：Organometallics
• 出版年：2012
• 出版时间：June 11, 2012
• 年：2012
• 卷：31
• 期：11
• 页码：4118-4121
• 全文大小：221K
• 年卷期：v.31,no.11(June 11, 2012)
• ISSN：1520-6041

文摘

The synthesis and characterization of novel six- and seven-membered expanded ring N-heterocyclic carbene (NHC) complexes of the general formula [Au(NHC)Cl] are described. The key structural parameters of complexes 1, 2, and 4 have been evaluated by solid-state analysis and by means of the percent buried volume (%V_bur) analysis. Complex 4 is found to demonstrate the largest %V_bur value of any gold(I) NHC complex reported to date, with a value of 52.6. All complexes 1鈥?b>4 have been evaluated in a preliminary catalytic survey of the hydration of internal alkynes.