C-13(RH-103) NUCLEAR MAGNETIC-RESONANCE OF [RH7(CO)16]3-

被引:20
作者
BROWN, C
HEATON, BT
LONGHETTI, L
SMITH, DO
CHINI, P
MARTINENGO, S
机构
[1] CNR,IST CHIM GEN & INORGAN,I-20133 MILAN,ITALY
[2] CNR CTR,I-20133 MILANO,ITALY
关键词
D O I
10.1016/S0022-328X(00)80972-9
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Specific 103Rh spin-decoupling has been used to make a complete assignment of the 13C NMR spectrum of [Rh7(CO)16]13-. At room temperature 3 μ2-carbonyls exchange with 3 μ1-carbonyls; it is shown that this carbonyl exchange occurs around the outside of the metal polyhedron rather than rotation of part of the metal skeleton within the carbonyl polyhedron. The rhodium chemical shifts show a large alternation from low to high field along the C3-axis of the cluster. © 1979.
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页码:309 / 314
页数:6
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