Ligand substitution in the osmium-antimony rings Os3(μ-SbPh2)2 (CO)10 and Os3(μ-SbPh2)3(Cl)(CO)9

被引：8
|
作者：
Li, Ying-Zhou [1 ]
Ganguly, Rakesh [1 ]
Leong, Weng Kee [1 ]
机构：
[1] Nanyang Technol Univ, Sch Phys & Math Sci, Div Chem & Biol Chem, 21 Nanyang Link, Singapore 637371, Singapore
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2016年 / 820卷
关键词：
Osmium; Antimony; Carbonyl clusters; Ligand substitution; OXYGEN-ATOM TRANSFER; OXIDATIVE ADDITION; METAL-CARBONYLS; CLUSTER; OS; RUTHENIUM; MECHANISM; KINETICS; BONDS; RU;
D O I：
10.1016/j.jorganchem.2016.07.028
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
TMNO-activated ligand substitution in the fused ring compounds Os-3(mu-SbPh2)(2)(CO)(10), 1, and Os-3(mu-SbPh2)(3)(Cl)(CO)(9), 2, in acetonitrile affords the mono-and disubstituted CH3CN-derivatives. The initial product of CH3CN substitution in 1 is an equatorial isomer, which can isomerize to the axial isomer upon heating; they are the first examples in which both isomers have been characterized crystallographically. Subsequent reaction of the CH3CN-derivatives of 2 with two-electron donor ligands L do not always result in the displacement of the acetonitrile ligands; displacement of a carbonyl ligand can also occur and appears to depend on the stereoelectronic properties of L. This is suggestive of an associative mechanism. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：46 / 54
页数：9
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