DICHLORO(PENTAMETHYLCYCLOPENTADIENYL)RUTHENIUM - NOVEL DICHOTOMY IN A MOLECULAR-STRUCTURE

被引：58
|
作者：
KOLLE, U
KOSSAKOWSKI, J
KLAFF, N
WESEMANN, L
ENGLERT, U
HEBERICH, GE
机构：
[1] Institut Für Anorganische Chemie, Technischen Hochschule Aachen, W-5100
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1991年 / 30卷 / 06期
关键词：
D O I：
10.1002/anie.199106901
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Dimers with very different Ru-Ru bond lengths and Ru-Cl-Ru bond angles-deformation isomers-are present in equal parts in crystals of the title compound. Solid-state NMR investigations show that the isomer 1a with the shorter Ru-Ru distance (2.93 angstrom) is diamagnetic, that with the longer distance (3.75 angstrom, 1b), on the other hand, paramagnetic. The temperature dependence of the H-1 NMR signal in solution is understandable if one assumes that the two isomers rapidly interconvert.
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页码：690 / 691
页数：2
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