【摘要】 以4,4’-三苯胺二甲酸（H₂L）为多齿有机羧酸与1,4-二（吡啶-4-亚甲基）哌嗪（bpmp）和硝酸镉在溶剂热条件下反应,得到2种晶体的混合物,经物理拆分后得到无色透明的片状晶体{[Cd L（bpmp）（H₂O）]·H₂O·DMF}_n（1）和淡黄色块状晶体{[Cd₂L₂（bpmp）₂]·3H₂O·2DMF}_n（2）.通过单晶及粉末X射线衍射、红外光谱、元素分析、热重分析和荧光光谱对这2种化合物进行了表征.结果表明,化合物1属于单斜晶系,P2₁/c空间群,其骨架为具有{6⁵·8}拓扑结构的四重互穿三维网络;化合物2属于三斜晶系,P1空间群,其结构为含有螺旋链的二维层,其骨架具有{3⁶·4⁶·5³}拓扑结构.更多还原

【Abstract】 The solvothermal reactions of Cd（ NO₃）₂with 4,4’-（ phenylazanediyl） dibenzoic acid（ H₂L） and1,4-bis（ pyridin-4-ylmethl） piperazine（ bpmp） gave rise to a mixture of colorless sheet-like crystals{ [Cd L（ bpmp）（ H₂O） ]·H₂O·DMF}_n（ 1） and yellowish bulk crystals { [Cd₂L₂（ bpmp）₂]· 3H₂ O ·2DMF}_n（ 2）,which were mechanically separated. Both compounds were structurally determined by singlecrystal X-ray diffraction. Compounds 1 and 2 were also characterized by FTIR spectroscopy,elemental analyses,thermal analysis,and powder X-ray diffraction（ PXRD）. Compound 1 exhibits a 4-fold interpenetrating3 D framework with a { 6⁵·8} topology. Compound 2 consists of 1D [Cd₂L₂]_nhelical chains linked by bpmp ligands to form a 2D network with a { 3⁶·4⁶·5³} topology.更多还原