CHARACTERIZATION OF RHODIUM OLEFIN COMPLEXES CHEMISORBED ONTO GAMMA-ALUMINA BY SOLID-STATE C-13 NMR AND EXAFS SPECTROSCOPIES

被引：9

作者：

VIERKOTTER, SA

BARNES, CE

HATMAKER, TL

PENNERHAHN, JE

STINSON, CM

HUGGINS, BA

BENESI, A

ELLIS, PD

机构：

[1] UNIV TENNESSEE,DEPT CHEM,KNOXVILLE,TN 37996

[2] UNIV MICHIGAN,DEPT CHEM,ANN ARBOR,MI 48109

[3] UNIV S CAROLINA,DEPT CHEM,COLUMBIA,SC 29208

[4] TALLADEGA COLL,TALLADEGA,AL 35160

来源：

ORGANOMETALLICS | 1991年 / 10卷 / 11期

关键词：

D O I：

10.1021/om00057a007

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Rhodium olefin and carbonyl complexes [Rh-ClL]2 (L = 1,5-cyclooctadiene (cod), (C2H4)2, (CO)2), chemisorbed onto partially dehydroxylated gamma-alumina, are characterized by solid-state NMR and extended X-ray absorption fine structure (EXAFS) spectroscopies. C-13 NMR data indicate that the olefin ligands observed in the immobilized species remain bound to the rhodium centers. EXAFS studies reveal a ligand-dependent, reversible disruption of the Rh-Cl bonds upon chemisorption.

引用

页码：3803 / 3806

页数：4

共 36 条

[1] ETHYLENE COMPLEXES - BONDING, ROTATIONAL BARRIERS, AND CONFORMATIONAL PREFERENCES [J].