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Three-Dimensional Cd-MOF Based on Benzenetetracarboxilic Acid and Bis(imidazolylmethyl)benzene Ligands: Synthesis, Structure and Fluorescence Property
Author NameAffiliationE-mail
YANG Hua Yan'an Laboratory of New Energy & New Function Materials, Shannxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China yanghua_08@163.com 
WU Yu-Ze Yan'an Laboratory of New Energy & New Function Materials, Shannxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China  
CUI Hua-Li Yan'an Laboratory of New Energy & New Function Materials, Shannxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China  
LIU Lin Yan'an Laboratory of New Energy & New Function Materials, Shannxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China  
WANG Ji-Jiang Yan'an Laboratory of New Energy & New Function Materials, Shannxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China  
CHEN Xiao-Li Yan'an Laboratory of New Energy & New Function Materials, Shannxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, China  
Abstract: One new 3D metal-organic framework with formula[Cd(L)0.5(1,3-bib)(H2O)]·H2O (1) was prepared under hydrothermal conditions by employing the rigid 1,2,4,5-benzenetetracarboxilic acid (H4L) as the primary ligand and 1,3-bis(1H-imidazole-1-ylmethyl)benzene(1,3-bib) as the ancillary ligand. Complex 1 was characterized by elemental analysis, infrared spectroscopy, X-ray single crystal diffractometer, thermogravimetric analysis and X-ray powder diffractometer. The results show that complex 1 belongs to orthorhombic system, Pbca space group with cell parameters:a=0.857 08(4) nm, b=1.912 23(10) nm, c=2.451 60(12) nm. In complex 1, the carboxyl ligand L4- chelates the metal centers via bidentate mode. The metal centers are coordinated by L4- and 1,3-bib to form a three-dimensional structure. The fluorescent properties of 1 were studied. Complex 1 shows strong luminescent peak at 454 nm. The luminescence of complex 1 can be quenched by acetone, MnO4- and Hg2+ ions, indicating that complex 1 was a good sensor for them.
Keywords: 1,2,4,5-benzenetetracarboxilic acid  hydrothermal method  complex  fluorescence recognition
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YANG Hua,WU Yu-Ze,CUI Hua-Li,LIU Lin,WANG Ji-Jiang,CHEN Xiao-Li.Three-Dimensional Cd-MOF Based on Benzenetetracarboxilic Acid and Bis(imidazolylmethyl)benzene Ligands: Synthesis, Structure and Fluorescence Property[J].Chinese Journal of Inorganic Chemistry,2021,37(3):465-472.
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Chinese Journal of Inorganic Chemistry