Metal Ion‐tuned Complexes based on Benzene‐1, 2, 4, 5‐tetracarboxylic Acid and the Semirigid Ligand 1, 4‐Bis(2‐methylbenzimidazol‐1‐ylmethyl) Benzene |
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| Authors: | Qianqian Guo Chunying Xu Dandan Zhao Yanyuan Jia Xianjuan Wang Prof Dr Hongwei Hou Yaoting Fan |
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| Institution: | Department of Chemistry, Zhengzhou University, Henan 450052, P. R. China |
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| Abstract: | Abstract. Two metal‐organic coordination polymers Co(bmb)(btc)0.5]n( 1 ) and {Zn(bmb)0.5(btc)0.5(H2O)] · 0.5bmb · H2O}n ( 2 ) H4btc = benzene‐1, 2, 4, 5‐tetracarboxylic acid, bmb = 1, 4‐bis(2‐methylbenzimidazol‐1‐ylmethyl) benzene] were prepared under hydrothermal conditions. Single‐crystal X‐ray diffraction indicates that both complexes have a 2D framework structure with (4 · 62) (42 · 62 · 82) topology. Interestingly, the hydrogen bonds in 2 form a fascinating meso‐helix. The catalytic activity of 1 for oxidative coupling of 2, 6‐dimethylphenol (DMP) and the photoluminescence properties of 2 were investigated. Furthermore, the complexes were investigated by IR spectroscopy and thermogravimetric analysis. |
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| Keywords: | Coordination polymers Semirigid ligand Zinc Cobalt Luminescence Oxidative coupling |
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