Syntheses of gold-manganese and gold-rhenium clusters, [(Ph3PAu)3M(CO)4] and [(Ph3PAu)4M(CO)4]+ (M Mn, Re), and the crystal structure of [(Ph3PAu)4Mn(CO)4]BF4
作者:Brian K. Nicholson、Michael I Bruce、Omar bin Shawkataly、Edward R.T. Tiekink
DOI:10.1016/0022-328x(92)80218-m
日期:1992.11
The specific additions of one, three or four Ph3PAu groups to [M(CO)5]- (M = Mn, Re) are described. Thus [M(CO)5]- in THF reacts with [(Ph3PAu)3O]BF4 to give [(Ph3PAu)4Mn(CO)4]BF4. An X-ray crystal structure of the M = Mn example shows the cation to have a trigonal bipyramidal Au4Mn core with the Mn in an equatorial site. The previously known neutral (Ph3PAu)3M(CO)4 clusters are formed by addition of two Ph3PAu groups, using the mixed reagent [(Ph3PAu)3O]BF4/[ppn][Co(CO)4], to Ph3PAuM(CO)5, which itself is readily prepared from [M(CO)5]- and Ph3PAuCl.
A radical-chain mechanism for dinuclear carbon-hydrogen bond formation
作者:Robin T. Edidin、Jack R. Norton
DOI:10.1021/ja00265a018
日期:1986.3
Etude de la formation de (Ph 3 PAu) 2 Os(CO) 4 et de (Ph 3 PAu)Mn(CO) 5 . Les vehiculeurs de chaine sont -Mn(CO) 5 et -Os(H)(CO) 4 , formes par photolyse
(Ph 3 PAu) 2 Os(CO) 4 和 (Ph 3 PAu)Mn(CO) 5 形成练习曲。Les vehiculeurs de chaine sont -Mn(CO) 5 et -Os(H)(CO) 4 ,形成光解
Studies of the Structures and Bonding of Gold-Bridged Dirhenium Carbonyl Cluster Complexes
作者:Richard D. Adams、Yuen Onn Wong、Qiang Zhang
DOI:10.1021/om4010127
日期:2013.12.23
Compound 1 is intensely colored due to low-energy, metal-based electronic transitions between the HOMO and HOMO-2 and the LUMO. Compound 1 reacts with I2 to yield Re2(CO)8(μ-AuPPh3)(μ-I), 3, and the known compound Re2(CO)8(μ-I)2, 4, by substitution of the bridging AuPPh3 groups with bridging iodide ligands. Compound 3 is electronically saturated, 34 valence electrons, and contains a formal Re–Re single