Gold(<scp>I</scp>) complexes derived from secondary phosphines: [{Au(µ-PR<sub>2</sub>)}<sub>n</sub>],[(AuBr)<sub>2</sub>(µ-PPh<sub>2</sub>)]<sup>–</sup>, [AuX(PHR<sub>2</sub>)], and [{Au(PHR<sub>2</sub>)<sub>n</sub>}]<sup>+</sup>. Crystal structure of [AuBr(PHPh<sub>2</sub>)]
作者:David B. Dyson、R. V. Parish、Charles A. McAuliffe、Robin G. Pritchard、Roy Fields、Brian Beagley
DOI:10.1039/dt9890000907
日期:——
The interaction of secondary phosphines with a variety of gold(I) compounds has been studied. In the presence of bases or polar solvents, polymeric gold(I) phosphides [Au(µ-PR2)}n] are formed. When these are obtained in the absence of additional ligands they are soluble, presumably with ring structures. More usually, insoluble forms are found, presumably with chain structures. The probable formation
已经研究了次膦与各种金(I)化合物的相互作用。在碱或极性溶剂的存在下,形成聚合的金(I)磷化物[Au(µ-PR 2)} n ]。当在没有其他配体的情况下获得它们时,它们是可溶的,大概具有环结构。更通常地,发现不溶形式,大概具有链结构。讨论了由[AuX(PH R 2)]型配合物形成这些物质的可能性,并分离了后者的配合物(X = Cl或Br,R = Ph或对甲苯基)和新型单体磷酸酯桥联阴离子[(AuBr)2(µ-PPh 2)] –描述。在非极性溶剂中,会形成一系列仲膦配合物,[Au(PHPh 2)n ] +(n = 2-4),但是对于n = 3而言,似乎歧化不稳定。该化合物的特征在于31 P nmr和197 AuMössbauer光谱学,[AuBr(PH Ph 2)]情况下的X射线晶体学。
Transition metal alkynyl complexes by transmetallation from Au(CCAr)(PPh<sub>3</sub>) (Ar = C<sub>6</sub>H<sub>5</sub>or C<sub>6</sub>H<sub>4</sub>Me-4)
作者:Wan M. Khairul、Mark A. Fox、Natasha N. Zaitseva、Maryka Gaudio、Dmitry S. Yufit、Brian W. Skelton、Allan H. White、Judith A. K. Howard、Michael I. Bruce、Paul J. Low
DOI:10.1039/b809960j
日期:——
Facile acetylide transferreactions take place between gold(I) complexes Au(CCAr)(PPh3) (Ar = C6H5 or C6H4Me-4) and a variety of representative inorganic and organometallic complexes MXLn (M = metal, X = halide, Ln = supporting ligands) featuring metals from groups 8–11, to afford the corresponding metal–alkynyl complexes M(CCR)Ln in modest to good yield. Reaction products have been characterised by
金(I)配合物Au(C CAr)(PPh 3)(Ar = C 6 H 5或C 6 H 4 Me-4)与各种代表性的无机和有机金属配合物MXL n(M =金属,X =卤化物,L n =支持配体)以8-11族金属为特征,以中等到良好的收率得到相应的金属-炔基络合物M(CCR)L n。反应产物已通过分光光度法进行了表征,并报道了Fe(C CC 6 H 4 Me-4)(dppe)Cp,Ru(C CC 6 H 4 Me-4)(dppe)Cp *,Ru的分子结构测定(C CC 6 ˚F 5)(η 2 -O 2)(PPH 3)的Cp *,IR(C CC 6 H ^ 4 ME-4)(η 2 -O 2)(CO)(PPH 3)2,镍( CCC 6 H 4 Me-4)(PPh 3)Cp和反式-Pt(C CAr)2 L 2(Ar = C 6 H 5,L = PPh 3 ; Ar = C 6 H 4 Me-4,L =
Synthesis and Structure of Binuclear Single‐Bridged Bis[(phosphane)gold(I)]halogenonium Complexes
作者:Angela Bayler、Andreas Bauer、Hubert Schmidbaur
DOI:10.1002/cber.19971300119
日期:1997.1
Reactions of (R3P)AuX (X = Cl, Br, I) with [(R3P)Au]+ BF−4 obtained from (R3P)AuCl and AgBF4 in tetrahydrofuran, lead to cationic binuclear gold(I) complexes of the general formula ([(R3P)Au]2X}+ BF−4. A number of chloro- (R = Ph, o-Tol, Mes, Bzl, Et), bromo- (R = Ph, o-Tol, Mes) and iodo-bridged (R = Ph, Mes) complexes of this type have been isolated and identified on the basis of their analytical
Facile Method of Halogen Exchange between Au(Cl)(<i>L</i>) and MeC(O)<i>X</i> (<i>L</i> = PPh<sub>3</sub> and IPr; <i>X</i> = Br and I) via σ-Bond Metathesis Supported by DFT Calculation
Complexes with the formula Au(X)(L) (X = Br and I; L = PPh3 and IPr) were conveniently prepared by a quite simple procedure using the treatment of Au(Cl)(L) with MeC(O)X and the subsequent evaporation under reduced pressure. The mechanistic study by DFT calculation with M06 functional supported that the reaction proceeded through σ-bond metathesis, where Cl atom underwent a more roundabout course than Br atom did.