Two metal–organic frameworks based on 2,5-thiophenedicarboxylic acid and semi-rigid bis-imidazole ligand: Luminescence, magnetism and electrocatalytic activities
作者： Xiang Wang , Xiaowen Yu , Lin Lin , Jiahuan Liu , Hongyan Lin
DOI: 10.1016/J.POLY.2019.01.047
关键词:
摘要: Abstract Tuning metal ion from Cd(II) to Co(II) in the presence of 2,5-thiophenedicarboxylic acid (H2tdc) and semi-rigid bis-imidazole ligand 4-bis(1H-imidazol-1-yl-methyl)benzene(bimb), two metal–organic frameworks, [Cd3(bimb)(μ4-tdc)3(DMA)2]·2DMA (1) [Co2(bimb)(μ2-H2O)(μ3-tdc)2(DMF)2]·H2O (2), have been generated under solvothermal condition. All frameworks with (412, 63) topology are pillared by bimb ligands, difference is that there exist trinuclear cadmium clusters gathered tdc ligands structure 1, but binuclear cobalt units 2. Interestingly, change Co(II), compound 1 displays good luminescent property at room temperature, 2 exhibits not only antiferromagnetic interaction, also electrocatalytic activity toward oxidation ascorbic acid.
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