Lone pair activity in lead(II) compounds.: X-ray structure of the dimeric complex [(trenMe6)Pb(O2CCH3)]2(BPh4)2, trenMe6 = N(CH2CH2N(CH3)2)3

被引:7
作者
Cecconi, F [1 ]
Ghilardi, CA [1 ]
Midollini, S [1 ]
Orlandini, A [1 ]
机构
[1] CNR, Ist Studio Stereochim & Energet Composti Coordina, I-50132 Florence, Italy
关键词
crystal structures; lead complexes; tripod phosphine complexes;
D O I
10.1016/S0020-1693(00)00217-6
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The reaction of the tetradentate tripod-like ligand N(CH2CH2NMe2)(3) (trenMe(6)) with Pb(CH3COO)(2). 3H(2)O in presence of Na(BPh4) allows the formation of the complex [(trenMe(6))Pb(O2CCH3)](2)(BPh4)(2). The complex displays a dimeric structure where each lead metal is linked by one trenMe(6) ligand and by three oxygens of two bridging acetate groups in a hepta-coordination. The presence of a void in the angular distribution of the ligands around the metal as well as the values of the Pb-L distances, with those opposite to the void significantly shorter than the others, are indicative of the presence of a stereochemically active lone pair on Pb(II). (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:135 / 138
页数:4
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