Synthesis and Solution- and Solid-State Characterization of Gold(I) Rings with Short Au···Au Interactions. Spontaneous Resolution of a Gold(I) Complex

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• 作者：Andrea De&aacute ; k ; Tü ; nde Megyes ; G&aacute ; bor T&aacute ; rk&aacute ; nyi ; Pé ; ter Kir&aacute ; ly ; L&aacute ; szló ; Biczó ; k ; G&aacute ; bor P&aacute ; link&aacute ; s ; Peter J. Stang
• 刊名：Journal of the American Chemical Society
• 出版年：2006
• 出版时间：October 4, 2006
• 年：2006
• 卷：128
• 期：39
• 页码：12668 - 12670
• 全文大小：132K
• 年卷期：v.128,no.39(October 4, 2006)
• ISSN：1520-5126

文摘

We report the synthesis and solution- and solid-state characterization of gold(I) rings with short 1,9-transannular Au···Au interactions. The 9- and 16-membered gold(I) rings were prepared by reacting 9,9-dimethyl-4,5-bis(diphenylphosphino)-xanthene and (Me₂S)AuCl in the presence of AgNO₃ in the molar ratio of 1:0.5:1 and 1:1:1, respectively. X-ray crystallographic measurements in conjunction with solution X-ray diffraction and NMR methods have been used to determine the structure of gold(I) rings, and we also gained insight into the dynamics. The nine-membered gold(I) ring is chiral, and the crystal contains only one of the two enantiomers, either right- or left-handed. To the best of our knowledge this represents the first example of crystallization-induced spontaneous resolution of a binuclear gold(I) cycle. The 16-membered ring with 1,9-transannular Au···Au interaction is in a figure-eight conformation.