不同V型辅助配体构筑的两个镉配位聚合物的合成、结构和荧光性质

Two cadmium coordination polymers constructed by varying V⁃shaped co⁃ligands:Syntheses,structures,and fluorescence properties

在溶剂热条件下,合成了2个基于V型辅助配体(bipmo、bppmo)的镉配位聚合物{[Cd(bipmo)(NDC)]·1.75H_(2)O}_n (1)和{[Cd(bppmo)(NDC)(H_(2)O)]·H_(2)O}_(n) (2),其中H_(2)NDC=2,6-萘二羧酸,bipmo=双(4-(1H-咪唑-1-基)苯基)甲酮,bppmo=双(4-(吡啶-4-基)苯基)甲酮。利用单晶X射线衍射、键价和分析、红外光谱和元素分析对其结构进行了表征。研究发现,配合物1具有二重互穿的{6~3}拓扑结构。配合物2同样是3-连接的{6~3}拓扑,却存在三重穿插结构。分析表明,V型配体对最终结构的形成有很大影响。此外,对配合物1和2的发光性质也进行了详细研究。

Based on V-shaped auxiliary ligands,two novel coordination polymers,{[Cd(bipmo)(NDC)]·1.75H_(2)O}_(n)(1),{[Cd(bppmo)(NDC)(H_(2)O)]·H_(2)O}_(n)(2),where H_(2)NDC=2,6-naphthalenedicarboxylic acid,bipmo=bis(4-(1H-imidazol-1-yl)phenyl)methanone,bppmo=bis(4-(pyridin-4-yl)phenyl)methanone,have been synthesized under solvothermal con-ditions.They have been characterized by single-crystal X-ray diffraction,bond valence sum calculations,IR spectra,and elemental analyses.Complex 1 shows 2-fold interpenetrating sheets of{63}topology,which interpenetrate in a 2D→2D parallel manner.Complex 2 reveals a 3-fold interpenetrating{63}_(n)etwork.The results indicate that the V-shaped ligands have a great effect on the formation of the final structures.In addition,the luminescent properties of complexes 1 and 2 were investigated in detail.CCDC:2296622,1;2296623,2.