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用水热合成方法得到1个新的配位聚合物[Cd2(BDC)2(obix)2].H2O(H2BDC=对苯二甲酸,obix=1,2-(二亚甲基)二咪唑)。配合物晶体属三斜晶系,P1空间群。晶体结构表明:镉原子与3个对苯二甲酸上的5个氧原子,2个1,2-(二亚甲基)二咪唑中的2个氮原子配位形成扭曲的五角双锥配位构型。2个Cd髤原子通过两个羧基桥联形成一个双核Cd2单元,再通过配体连接成二维层状结构,层与层之间通过C-H…O氢键和弱的π-π相互作用形成三维超分子结构。室温下配合物具有较强的荧光发射光谱。
A new coordination polymer [Cd2 (BDC) 2 (obix) 2] .H2O (H2BDC = terephthalic acid, obix = 1,2- (dimethylene) diimidazole) was obtained by hydrothermal synthesis. Complex crystal is triclinic, P1 space group. The crystal structure shows that the coordination of cadmium atom with two oxygen atoms of five oxygen atoms on three terephthalic acids and two 1,2 - (dimethylene) diimidazoles leads to a distorted pentagonal bipyramidal coordination structure. Two Cd 髤 atoms are bridged by two carboxyl groups to form a binuclear Cd2 unit, which is then connected into a two-dimensional layered structure through ligands. The three-dimensional Supramolecular structure. The complexes have strong fluorescence emission spectra at room temperature.