A CRYOSCOPIC STUDY OF COPPER(I) HYDRIDE-PHOSPHINE COMPLEXES

被引:22
作者
DILTS, JA
SHRIVER, DF
机构
[1] Department of Chemistry, Materials Research Center, Northwestern University
关键词
D O I
10.1021/ja01043a013
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Pyridine solutions of copper(I) hydride plus aryl or alkyl phosphines and phosphites have been studied by freezing point depression. Cryoscopic titration curves for the most basic phosphines show a molality minimum which corresponds to the formation of R3P(CuH)2. It is proposed that association occurs via hydride bridges. 1,2-Bs(diphenylphosphino)ethane (diphos) yields a molality minimum corresponding to diphos(CuH)2. Solutions and solid samples of copper hydride-phosphine complexes do not have a high order of thermal stability, and this leads us to question the validity of a previous report on highly stable copper hydride-phosphine complexes. © 1969, American Chemical Society. All rights reserved.
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页码:4088 / &
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