Synthesis and molecular structure of [Bu(2)(t)Ga{mu-O2P(Ph)OGaBu(2)(t)}](2): A novel three-coordinate gallium compound

被引：25

作者：

Keys, A

Bott, S

Barron, AR

机构：

[1] RICE UNIV,DEPT CHEM,HOUSTON,TX 77005

[2] UNIV N TEXAS,DEPT CHEM,DENTON,TX 76203

来源：

CHEMICAL COMMUNICATIONS | 1996年 / 20期

关键词：

D O I：

10.1039/cc9960002339

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The reaction of GaBu(3)(t) with phenylphosphonic acid results in the formation of the unusual phosphonate bridged dimer, [Bu(2)(t)Ga{mu-O2P(Ph)OGaBu(2)(t)}](2), whose molecular structure consists of two four- and two three-coordinate gallium centres; while [Bu(2)(t)Ga{mu-O2P(Ph)OGaBu(2)(t)}](2) exists as the trans isomer in the solid state, it undergoes a trans to cis isomerization in solution, Delta H = 7 +/- 1 kJ mol(-1) and Delta S = 25 +/- 4 J mol(-1) K-1.

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页码：2339 / 2340

页数：2

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