Syntheses, structures and redox properties of {Os(PPh3)2Cp}2{μ-(CC)x} (x=2, 3, 4): Comparisons with the Ru analogues

被引：22
作者：
Bruce, Michael I. [1 ]
Kramarczuk, Kathy A. [1 ]
Skelton, Brian W. [2 ]
White, Allan H. [2 ]
机构：
[1] Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia
[2] Univ Western Australia, SBBCS, Crawley, WA 6009, Australia
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2010年 / 695卷 / 03期
基金：
澳大利亚研究理事会;
关键词：
Ruthenium; Osmium; Crystal structure; Carbon chain; SP CARBON CHAINS; RAY CRYSTAL-STRUCTURE; 2 PLATINUM ATOMS; CYCLOPENTADIENYL-RUTHENIUM; ELECTRONIC COMMUNICATION; SPECTROSCOPIC PROPERTIES; POLYYNEDIYL CHAINS; COORDINATED CARBON; OSMIUM CHEMISTRY; OXIDATION-STATES;
D O I：
10.1016/j.jorganchem.2009.10.043
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The syntheses of {Os(PPh3)(2)Cp}(2){mu-(C C)(x)} (x = 2, 3, 4) from reactions between OsBr(PPh3)(2)Cp* and Me3Si(C C)(x)SiMe3 in the presence of KF/NaBPh4 are described. The molecular structure of x = 3 has been determined by a single-crystal XRD study. Comparison of the redox properties of {M(PPh3)(2)Cp}(2){mu-(C C)(x)} (M = Ru, Os) shows that the oxidation potentials of the osmium complexes are invariably lower (by between 0.16 and 0.64 V) than those of the Ru analogues. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：469 / 473
页数：5
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