MO(CO)6 ADSORPTION ON A CHROMIA-SILICA CATALYST - FORMATION OF HETEROADDUCT METAL-COMPLEXES

被引：7

作者：

COLUCCIA, S ^{[1
]}

MARCHESE, L ^{[1
]}

MARTRA, G ^{[1
]}

SPOTO, G ^{[1
]}

ZECCHINA, A ^{[1
]}

LOUIS, C ^{[1
]}

机构：

[1] UNIV PARIS 06,REACTIV SURFACE & STRUCT LAB,CNRS,UA 1106,F-75252 PARIS 05,FRANCE

来源：

JOURNAL OF MOLECULAR CATALYSIS | 1990年 / 60卷 / 01期

关键词：

D O I：

10.1016/0304-5102(90)85069-T

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Molybdenum hexacarbonyl was admitted onto chromia-silica catalysts prepared both by reduction in CO, which produces Cr(II)-rich samples, and by reduction in hydrogen, which produces Cr(III)-rich samples. Cr(II)⋯OC-Mo(CO)5 and Cr(III)⋯OC-Mo(CO)5 adducts are formed whose infrared spectral features, particularly the stretching mode of the O-bonded CO entity, depend on the charge of the cation and on its coordination. Mo(CO)6 species physisorbed on the support are also observed. These results are compared with previous results relative to molybdenum/silica catalysts. © 1990.

引用

页码：71 / 81

页数：11

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