Baudron Stéphane A, Hosseini Mir Wais, Kyritsakas Nathalie, Kurmoo Mohamedally
Laboratoire de Chimie de Coordination Organique (UMR 7140), Université Louis Pasteur, Institut Le Bel, 4 rue Blaise Pascal, 67000, Strasbourg, France.
Dalton Trans. 2007 Mar 21(11):1129-39. doi: 10.1039/b616841h. Epub 2007 Feb 8.
A strategy for the controlled construction of heterobimetallic discrete complexes and 1-D coordination networks is presented. The organic ligand based on the methanedithiolate group and the 4,5-diazafluorene moiety behaving as primary and secondary coordination poles respectively leads to the formation of a series of discrete metal complexes with various geometries via binding through the dithiolate site. The observed coordination geometries range from square-planar for Ni(ii) and Pd(ii) to distorted tetrahedral for Zn(ii) and Hg(ii). The square-planar Pd(ii) complex affords a discrete bimetallic trinuclear complex when treated with a capped Ni(ii) center. All three Ni(ii), Pd(ii) and Hg(ii) discrete complexes have been also shown to behave as metallatectons leading to the generation of infinite networks in the presence of bridging cations such as sodium.
本文提出了一种用于可控构建异双金属离散配合物和一维配位网络的策略。基于甲二硫醇盐基团和4,5-二氮杂芴部分的有机配体分别作为一级和二级配位极点，通过二硫醇盐位点结合，形成了一系列具有各种几何形状的离散金属配合物。观察到的配位几何形状范围从镍（II）和钯（II）的平面正方形到锌（II）和汞（II）的扭曲四面体。平面正方形的钯（II）配合物在与封端的镍（II）中心反应时，会形成离散的双金属三核配合物。所有三种镍（II）、钯（II）和汞（II）离散配合物也已被证明可作为金属 tectons，在存在桥连阳离子（如钠）的情况下生成无限网络。
