钴(Ⅱ)镍(Ⅱ)超分子配合物的微波合成、晶体结构

摘要

本文采用微波加热技术合成两种新的超分子配合物[ Co(OBT) (2,6-pdc) (H2O)2] ·3H2O(1)和[Ni(OBT)(2,6-pdc)( H2O)2] ·2H2O (2)(2,6-H2pdc =2,6-吡啶二羧酸,HOBT=1-羟基苯并三唑),并由X-射线单晶衍射分析确定了它们的晶体结构.配合物1属于三斜晶系,P-1空间群,晶胞参数:a=0.67000(13) nm,b=1.008 0(2) nm,c=1.0100(2) nm,α=104.21(3)°,β=106.91(3)°,γ=94.94(3)°,V=0.623 5(2) nm3,Z=2.配合物2属于三斜晶系,P-1空间群,晶胞参数:a=0.758 33(15) nm,b=1.133 3(2) nm,c=1.153 1(2) nm,α=104.74(3)°,β=106.63(3)°,γ=95.17(3)°,V=0.9040(3) nm3,Z=2.配合物1和2中,中心原子钴和镍均为六配位八面体构型,两个配合物中均存在氢键作用和π-π堆积作用,使得配合物1和2扩展为三维超分子结构.%Two novel supramolecular complexes;[ Co( OBT ) ( 2;6-pdc ) ( H2 O) 2 ] ? 3 H2 O (1) and [ Ni(OBT) ( 2;6-pdc) (H2O)2] ·2H2O (2) .were synthesised and characterized by X-ray diffraction. The complex 1 crystallized in the triclinic space P-1 with 0 = 0.67000(13) nm;b = 1. 0 080(2) nm;c = 1. 0 100(2) nm;α = 104. 21 (3 )°;β= 106. 91 (3) °;γ= 94. 94 (3 )°;V = 0. 6 235 (2 ) nm3;Z = 2. The complex 2 crystallized in the triclinic space P-l with o=0. 75833(15) nm;6=1. 1333(2) nm;c= 1. 1531(2) nm.α = 104.74(3)°;β = 106. 63(3)°;γ = 95. 17(3)°;V = 0. 9 040 (3 ) nm3;Z = 2. The central atoms of the two complexes both present octahedral coordination geometry. 3-D network structures were formed via hydrogen bonds and π-π interaction.