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.
引用
收藏
页码：2339 / 2340
页数：2
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