Synthesis,Structures, and Luminescent Properties of Three Coordination Polymers Constructed from Tricarboxylate and Bisbenzoimidazole Ligand |
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| Authors: | Yong‐Hong Wen Dong‐Mei Wang Hui‐Ling Wen Yue Zhang Kuo Yao |
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| Affiliation: | Key Laboratory of Eco‐Chemical Engineering, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China |
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| Abstract: | The hydrothermal reaction of the tricarboxylate ligand 5‐(carboxymethoxy)isophthalic acid (H3L) with ZnII, CdII, and SnII salts in the presence of the bisbenzoimidazole coligand 1, 3‐bis(benzimidazol‐2‐yl)‐2‐oxapropane (bbop) afforded the coordination polymers, [Zn(HL)(bbop)]n ( 1 ), [Cd(HL)(bbop)]n ( 2 ), and {[H2(bbop)][Sn2L2]}n ( 3 ). The complexes were characterized by elemental analyses, IR spectroscopy, single‐crystal X‐ray diffraction analyses, thermogravimetric analyses, and fluorescence properties. The structures of complexes 1 and 2 are constructed by 1D chains and show strong blue luminescence emission. The structure of complex 3 is a 2D anionic dilayer, and shows a vase‐like porous structure occupied by the bulky [H2(bbop)]2+ cation, which is an uncommon structural feature in transition metal coordination polymers. The three complexes are further connected by hydrogen bonds to form 3D supramolecular architectures. |
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| Keywords: | Cadmium Tin Zinc Crystal structure Luminescence |
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