DIHYDRIDE VERSUS DIHYDROGEN COMPLEX - THE PHOTOCHEMICAL-REACTION OF [(ETA-5-C5H5)M(CO)4] (M = V, NB AND TA) WITH HYDROGEN IN SOLUTION AT BOTH CRYOGENIC AND ROOM TEMPERATURES

被引：32

作者：

HAWARD, MT ^{[1
]}

GEORGE, MW ^{[1
]}

HAMLEY, P ^{[1
]}

POLIAKOFF, M ^{[1
]}

机构：

[1] UNIV NOTTINGHAM, DEPT CHEM, NOTTINGHAM NG7 2RD, ENGLAND

来源：

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS | 1991年 / 16期

关键词：

D O I：

10.1039/C39910001101

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

UV photolysis of [cpM(CO)4] (cp = eta-5-C5H5; M = V, Nb and Ta) and H-2 has been studied by IR spectroscopy both in n-heptane solution at 25-degrees-C and in liquid Xenon solution at -110 to -45-degrees-C; for V, the reaction leads to formation of the non-classical complex [cpV(CO)3(eta-2-H-2)] while, for Ta, the dihydride [cpTa(CO)3H-2] is formed; for Nb, there is a temperature dependent equilibrium between the classical [cpNb(CO)3H-2] and non-classical [cpNb(CO)3(eta-2-H-2)] compounds, which presents an unusual opportunity to study the formation of these species using nanosecond Time-resolved IR spectroscopy (TRIR).

引用

页码：1101 / 1103

页数：3

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