Syntheses,Structures, and Catalytic Properties of Two 2D Manganese(II) Coordination Polymers Containing Flexible Bis(benzimidazole) Ligands |
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Authors: | Dian Heng Huan Ya Mei Yu Sheng Chun Wang Gui Ying Dong |
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Institution: | 1. College of Chemical Engineering, North China University of Science and Technology, 46 West Xinhua Road, Tangshan, 063009, Hebei, P. R. China;2. The Fifth Geology Company, of Hebei Geology and Minerals Bureau, Tangshan, 063000, Hebei, P. R. China |
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Abstract: | Two MnII coordination polymers based on the flexible bis(benzimidazole) and dicarboxylic acids, namely, Mn(L1)(bpdc)(H2O)0.5]n ( 1 ) and Mn(L2)(Htbi)2]n ( 2 ) L1 = 1,4‐bis(5,6‐dimethylbenzimidazol‐1‐ylmethyl)benzene, H2bpdc = 4,4′‐biphenyldicarboxylic acid, L2 = 1,4‐bis(5,6‐dimethylbenzimidazole)butane, H2tbi = 5‐tert‐butyl isophthalic acid] were hydrothermally synthesized and characterized by elemental analysis, IR spectroscopy, as well as single‐crystal X‐ray diffraction. Both of the complexes crystallize in the triclinic P$\bar{1}$ space group and present distorted octahedral configurations. Complex 1 possesses a 2D binodal (3,5)‐connected 3,5L2 network with the point symbol of (42.67.8)(42.6), whereas 2 features a 2D uninodal 3‐connected hcb topology and the Schläfli symbol is (63). Complexes 1 and 2 ultimately are extended into 3D supramolecular framework via π–π stacking and O–H ··· O hydrogen bonding interaction, respectively. Moreover, both of the complexes manifest excellent catalytic activities for the degradation of Congo red. |
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Keywords: | Bis(benzimidazole) ligand Fluorescence Hydrothermal condition Manganese Coordination polymer |
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