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Synthesis,structure and fluorescence properties of a Cd(Ⅱ)complexbased on imidazole derivative and 1,3-benzenedicarboxylic acid(PDF)


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Synthesis,structure and fluorescence properties of a Cd(Ⅱ)complexbased on imidazole derivative and 1,3-benzenedicarboxylic acid
Yang Yi1Zou Zipeng1Yu Siji1Qiao Ziyang1Huang Qiuying1Meng Xiangru2
1.Department of Chemical Engineering,Henan Polytechnic Institute,Nanyang 473009,China; 2.College of Chemistry and Molecular Engineering,Zhengzhou University,Zhengzhou 450001,China
molecular structure thermal stability fluorescence performance Cd(Ⅱ)-complex 2-(1H-imidazol-1-methyl)-6-methyl-1H-benzimidazole 13-benzenedicarboxylic acid
A novel Cd(Ⅱ)complex,namely {[Cd(immb)(bdic)(H2O)]·H2O}n(1),is prepared by the hydrothermal reaction of CdCl2·2.5H2O with 2-(1H-imidazol-1-methyl)-6-methyl-1H-benzimidazole(immb)and 1,3-benzenedicarboxylic acid(H2bdic)at 120 ℃. It is characterized by the elemental analysis,infrared spectroscopy(IR),single crystal structure analysis,powder diffraction pattern analysis,thermal stability analysis,fluorescence excitation and emission spectra analysis. Complex(1)belongs to triclinic system,space group P-1. Cd(Ⅱ)ion is seven-coordinated and bridged by immb ligands and bdic2- anions leading to a two-dimensional(2D)network,which are further extended to three-dimensional(3D)supramolecular structure by hydrogen bonds. Upon excitation at 269 nm,the title complex exhibits intense emission at 331 nm at room temperature for the solid state.


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Last Update: 2020-02-29