Dong Yu-Wei, Fan Rui-Qing, Wang Ping, Wang Li-Yuan, Yang Yu-Lin
Department of Chemistry, Harbin Institute of Technology, Harbin 150001, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2013 Feb;33(2):481-5.
The 3D netlike coordination polymer of Zn II with benzimidazole-5,6-dicarboxylic acid (H3BIDC), [Zn(HBIDC) x H2O]n was synthesized by the hydrothermal method through self-assembling. The crystal structure of complex 1 was characterized by single-crystal X-ray diffraction, elemental analysis and IR spectra, and we also studied the fluorescence properties of complex 1 in DMSO and in the solid state with UV-Vis absorption spectra, fluorescence spectra and fluorescence lifetime. Complex 1 has blue luminescence in solutions of DMSO with emission band at 481 nm; and has blue luminescence in the solid state at room temperature with a strong emission band at 493 nm, and these all can be attributed to the pi* --> pi transition based on the benzimidazole-5,6-dicarboxy acid. The experimental results indicate that complex 1 displays higher fluorescence quantum efficiency and can be used as a potential blue luminescence material.
通过水热法自组装合成了锌（II）与苯并咪唑 - 5,6 - 二羧酸（H3BIDC）形成的三维网状配位聚合物[Zn(HBIDC)·H2O]n。通过单晶X射线衍射、元素分析和红外光谱对配合物1的晶体结构进行了表征，并且我们还用紫外 - 可见吸收光谱、荧光光谱和荧光寿命研究了配合物1在二甲基亚砜（DMSO）溶液中和固态下的荧光性质。配合物1在DMSO溶液中呈现蓝色发光，发射带位于481 nm；在室温固态下呈现蓝色发光，强发射带位于493 nm，这些都可归因于基于苯并咪唑 - 5,6 - 二羧酸的π*→π跃迁。实验结果表明配合物1具有较高的荧光量子效率，可作为潜在的蓝色发光材料。
