Synthesis and protonation of an Os-3(mu-H)(CO)(10)(mu-sigma,eta(2)-C CCMe2OMe) cluster

被引：4

作者：

Krivykh, VV ^{[1
]}

Kizas, OA ^{[1
]}

Vorontsov, EV ^{[1
]}

Koridze, AA ^{[1
]}

机构：

[1] AN NESMEYANOV ORGANOELEMENT CPDS INST,MOSCOW 117813,RUSSIA

来源：

RUSSIAN CHEMICAL BULLETIN | 1996年 / 45卷 / 12期

关键词：

triosmium clusters; osmium carbonyls; protonation; acetylenide; carbocation;

D O I：

10.1007/BF01430656

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Triosmium cluster Os-3(mu-H)(CO)(10)(mu-sigma,eta(2)-C=CCMe2OMe) (1) was obtained by treating Os-3(mu-H)(mu-Cl)(CO)(10) with LiC=CCMe2OMe. The reaction of cluster 1 with HBF4 . Et2O at -60 degrees C leads to the cationic complex [Os-3(mu-H)(CO)(10)(mu-sigma,sigma,eta(2)-C=C=CMe2)]+BF4- (2) with an allenylidene ligand. The H-1 and C-13 NMR spectra of complex 2 reveal the temperature dependence caused by migration of hydrocarbon and carbonyl ligands. Thermodynamic parameters were obtained for the exchange process of the allenylidene ligand.

引用

页码：2840 / 2842

页数：3

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