Perhalophenyl(tetrahydrothiophene)gold(I) Complexes as Lewis Bases in Acid-Base Reactions with Silver Trifluoroacetate

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• 作者：Eduardo J. Ferná ; ndez ; Peter G. Jones ; Antonio Laguna ; José ; M. L&oacute ; pez-de-Luzuriaga ; Miguel Monge ; M. Elena Olmos ; Raquel C. Puelles
• 刊名：Organometallics
• 出版年：2007
• 出版时间：November 19, 2007
• 年：2007
• 卷：26
• 期：24
• 页码：5931 - 5939
• 全文大小：318K
• 年卷期：v.26,no.24(November 19, 2007)
• ISSN：1520-6041

文摘

Reaction of [Ag(CF₃CO₂)] with [Au(C₆X₅)(tht)] (X = halogen, tht = tetrahydrothiophene) leads tothe synthesis of complexes [AgAu(C₆F₅)(CF₃CO₂)(tht)]_n (1), [Ag₂Au(C₆Cl₂F₃)(CF₃CO₂)₂(tht)]_n (2), or[AgAu(C₆Cl₅)(CF₃CO₂)(tht)]_n (3), confirming the capability of a neutral complex, such as a perhalophenyl(tetrahydrothiophene)gold(I), to act as electron density donor when treated with a Lewis acid substrate.All three crystal structures have been established by X-ray diffraction; all display Au···Ag and Ag···Aginteractions and polymeric 1D (2, 3) or 2D (1) networks built by means of additional Au···Au, Ag-O···Ag, or Au-S···Ag interactions. Complexes 1-3 are luminescent in the solid state at room temperature,and at 77 K or in frozen solutions they show a different luminescence in the solid state, which seems tobe related to the different number and types of metal-metal interactions present in each case. DFT andTDDFT calculations on simplified model systems of 1-3 have also been carried out.