Reactions of tetrakis[bis(trimethylsilyl)methyl]digallane(4) with carboxylic acids - Substituent exchange and bridging of the Ga-Ga bond by two carboxylato groups

被引：36

作者：

Uhl, W ^{[1
]}

Hahn, I ^{[1
]}

Reuter, H ^{[1
]}

机构：

[1] UNIV OSNABRUCK, INST CHEM, D-49069 OSNABRUCK, GERMANY

来源：

CHEMISCHE BERICHTE-RECUEIL | 1996年 / 129卷 / 12期

关键词：

gallium-gallium bonds; carboxylato bridges;

D O I：

10.1002/cber.19961291204

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Yellow tetrakis[bis(trimethylsilyl)methyl]digallane(4) 1 reacts with two equivalents of the carboxylic acids RCOOH (R = -C6H5, -p-BrC6H4, -3,5-Me(2)C(6)H(3), -CMe(3)) to yield almost quantitatively colorless products in which two bis(trimethylsilyl)methyl groups are replaced by two carboxylato ligands. As shown by a crystal structure determination with the 4-bromo-phenyl derivative (3), the Ga-Ga bond is bridged by both carboxylato groups in a chelating manner. The Ga-Ga distance is shortened to 238.5(2) pm (1: 254.1(1) pm) and the coordination number of the Ga atoms increased to four.

引用

页码：1425 / 1428

页数：4

共 47 条

[41] SPECIAL SILAZANE DERIVATIVES OF DIGALLANE(4) AND DIINDIANE(4) WITH GA-GA AND IN-IN BOND [J].