By using a multidentate N-donor tecton 3-(pyridin-4-yl)-5-(pyrazin-2-yl)-1H-1,2,4-triazole (Hppt) and different aromatic polycarboxylates, including terephthalic acid (H2tp), isophthalic acid (H2ip), 1,3,5-benzenetricarboxylic acid (1,3,5-H3btc), and 1,2,4,5-benzenetetracarboxylic acid (1,2,4,5-H4btec), four cadmium(II) coordination polymers [Cd(ppt)(tp)0.5(H2O)2]·H2O}n1; [Cd3(ppt)2(ip)2(H2O)]·H2O}n2; [Cd2(ppt)(btc)(H2O)4]n3; [Cd3(ppt)2(btec)(H2O)3]·(H2O)3}n4 have been synthesized under solvothermal conditions. Complex 1 shows a new 2D two-fold interpenetrating brick wall plane with 3-connected net. Complex 2 features a 3D net with a rare (3,4,5)-connected topology net. Complex 3 is an intriguing two-fold interpenetrating 3D framework, which shows four nodal 3-connected topology with the Schläfli symbol of (72·9)(82·8)(6·7·9)(52·7). Complex 4 exhibits a 3D (4,6)-connected (44·610·8)(44·62) net. In addition, the thermal stability and photoluminescence properties of 1–4 and the Hppt ligand in the solid state have also been studied in detail.
通过使用 3-(
吡啶-4-基)-5-(
吡嗪-2-基)-
1H-1,2,4-三唑(Hppt)和不同的芳香族聚
羧酸盐,包括
对苯二甲酸(H2tp)、
间苯二甲酸(H2ip)、1,3,5-苯三
甲酸(1,3,5-H3btc)和 1,2,4,5-苯四
甲酸(1,2,4,5-H3btc)、
异酞酸 (H2ip)、1,3,5-苯
三羧酸 (1,3,5-H3btc) 和 1,2,4,5-苯四
羧酸 (1,2,4,5-H4btec)、四种
镉(II)配位聚合物 [Cd(ppt)(tp)0.5(
H2O)2]- }n1;[Cd3(ptt)2(ip)2( )]- }n2;[Cd2(ptt)(btc)( )4]n3;[Cd3(ptt)2(btec)( )3]-( )3}n4。复合物 1 显示了一个新的二维两折互穿砖墙平面,具有 3 个连接的网。复合物 2 的特征是具有罕见的 (3,4,5) 连接拓扑网的三维网。复合物 3 是一个引人入胜的两折互穿三维框架,它显示了四个节点的 3 连接拓扑结构,其 Schläfli 符号为 (72-9)(82-8)(6-7-9)(52-7)。复合物 4 显示出三维(4,6)连接(44-610-8)(44-62)网。此外,还详细研究了 1-4 和 Hppt
配体在固态下的热稳定性和光致发光特性。