Platinum(II) compounds with enantiomerically pure bis(pinene)-fused bipyridine ligands - Diimine-dichloro complexes and their substitution reactions

被引：0
|
作者：
Kolp, B
Abeln, D
Stoeckli-Evans, H
von Zelewsky, A [1 ]
机构：
[1] Univ Fribourg, Inst Inorgan Chem, CH-1700 Fribourg, Switzerland
[2] Univ Bern, Crystallog Lab, CH-3012 Bern, Switzerland
[3] Univ Neuchatel, Inst Chim, CH-2000 Neuchatel, Switzerland
来源：
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2001年 / 05期
关键词：
chirality; platinum; substitution reactions; diastereoselectivity; N ligands;
D O I：
10.1002/1099-0682(200105)2001:53.0.co;2-4
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The synthesis of chiral square-planar Pt-II complexes using symmetrical and unsymmetrical bis(pinene)-fused 2,2'-bi-pyridine is described. The neutral diimine dichloro complexes show a strong deviation of the coordination sphere from planarity if the pinene groups are attached at the 5-and 6-positions of the pyridine rings. However, this distortion does not occur in parallel with the chiral configuration at the diimine Ligands. The substitution of the two cis-chloro ligands with diamines to form five-membered chelate rings shows little diastereoselectivity when racemic mixtures of chiral diamines are used. Also, ligands that are prochiral at the Ligating centers show Little selectivity upon coordination.
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页码：1207 / 1220
页数：14
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