Abstract

A novel lead coordination compound based on an extend viologen derivated ligand, [Pb₄(TTVTC)Cl₆(H₂O)₂] was successfully assembled under solvothermal condition and characterized. Single crystal structure study reveals that compound 1 is a 2D layer. Adjacent Pb²⁺ ions are doubly bridged by isophthalates and µ₂-Cl ions to form an infinite one dimensional (1D) ladder-like chain. The chains are further interlinked by the TTV moieties to generate a 2D layer. And hydrogen bond interaction based on C–H···Cl and C–H···O forms the supramolecular 3D structure. Additionally, Solid- state fluorescence shows that 1 emits pale green fluorescence, which can be assigned to the inter-ligand π*–π and/or π*–n transitions.

摘要

基于扩展的紫精衍生配体 [Pb ₄ (TTVTC)Cl ₆ (H ₂ O) ₂ ] 的新型先导配位化合物在溶剂热条件下成功组装并进行了表征。单晶结构研究表明化合物1是二维层。相邻的 Pb ²⁺离子被间苯二甲酸盐和µ ₂ -Cl 离子双重桥接，形成无限大的一维 (1D) 梯状链。这些链由 TTV 部分进一步互连以生成 2D 层。而基于C–H···Cl和C–H···O的氢键相互作用形成超分子三维结构。此外，固态荧光显示1发出淡绿色荧光，可归因于配体间 π*–π 和/或 π*–n 跃迁。