Copper(II) complexes of bis- and tetrakis-(2-pyridylsulfanylmethyl)benzenes
摘要:
Reactions of copper(II) salts with the ligand 1,2-bis(2-pyridylsulfanylmethyl)benzene (L-1) and the isomeric ligands 1,2,3,4-tetrakis(2-pyridylsulfanylmethyl)benzene (L-2) and 1,2,4,5-tetrakis(2-pyridylsulfanylmethyl)benzene (L-3) give copper(II) complexes, some of which have been characterised by X-ray crystallography. [Cu(L-1)Cl-2] is found to be a one-dimensional coordination polymer, containing two subtly different copper atom environments. By contrast, [Cu-2(L-2)Cl-4] and [Cu-2(L-3)(NO3)(4)] are discrete species with, in each case, the copper atoms chelated by adjacent ligand arms. (C) 2003 Elsevier Ltd. All rights reserved.
通过吡啶-2-硫醇与适当的聚(溴甲基)苯反应,在存在下,制备了三个异构的双(2-吡啶基硫烷基甲基)苯和1,2,4,5-四(2-吡啶基硫烷基甲基)苯。三乙胺,收率高。这些新的配体中的每一个都以极高的收率与硝酸银反应,生成配位体桥接两个或多个金属中心的配位配合物。这些配合物的晶体结构已经确定。的对位双取代异构体自组装成A M 2大号2大环二聚体。其他配体形成包含相互连接的大环的复杂网络的一维金属聚合物。在晶体堆积中,观察到芳环之间的堆积相互作用。