A novel Cd(II)-based coordination polymer, namely {[Cd 3 L 3 (dbp) 2 ]} n ( 1 ), was solvothermally prepared based on the rigid ligand 2,6-naphthalenedicarboxylic acid (H 2 L) and N-donor linker 4,4′-dimethyl-2,2′-bipyridine (dbp). The single-crystal X-ray diffraction analysis shows that compound 1 possesses a fascinating 3D architecture, constructed from a trinuclear secondary building unit [Cd 3 (COOR) 6 ] and linear L 2− linker. The whole structure of compound 1 can be simplified as uninodal 6-connected sxb network with Schlafli symbol of {4 8 5, 4 6 3 }. Compound 1 exhibits strong photoluminescent emissions with emission peak at 425 nm. Most strikingly, 1 could be selectively quenched by Cu 2+ ion and nitrobenzene (NB) as potential luminescent sensory material. Meanwhile, vapor-phase fluorescence response of 1 toward NB was also investigated.

中文翻译：

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基于 2,6-萘二甲酸的新型配位聚合物：合成、晶体结构和发光传感

基于刚性配体 2,6-萘二甲酸 (H 2 L) 和 N，溶剂热法制备了一种新型 Cd(II) 基配位聚合物，即 {[Cd 3 L 3 (dbp) 2 ]} n ( 1 ) -供体接头 4,4'-二甲基-2,2'-联吡啶 (dbp)。单晶 X 射线衍射分析表明，化合物 1 具有迷人的 3D 结构，由三核二级构建单元 [Cd 3 (COOR) 6 ] 和线性 L 2- 连接体构成。化合物1的整个结构可以简化为单节点6连通sxb网络，Schlafli符号为{4 8 5, 4 6 3 }。化合物 1 表现出强烈的光致发光发射，发射峰位于 425 nm。最引人注目的是，1 可以被 Cu 2+ 离子和硝基苯 (NB) 作为潜在的发光感官材料选择性猝灭。同时，还研究了 1 对 NB 的气相荧光响应。