Syntheses, Structures, and Luminescence of Metal(II) Coordination Polymers based on Flexible 1,1′-(1,4-Butanediyl)bis(imidazole) and Tetrachlorobenzene-1,4-dicarboxylate Ligands

• Published in: Zeitschrift für anorganische und allgemeine Chemie (1950) 2016-12, Vol.642 (24), p.1486-1492
• Main Authors: Hong, Jianquan, Zhai, Wenji, Wang, Likui, Wang, Yazhao, Zheng, Changge
• Format: Article
• Language: English
• Subjects: 1′-; 4-Butanediyl)bis(imidazole; 4-dicarboxylate; Coordination polymer; Coordination polymer; 1,1′‐(1,4‐Butanediyl)bis(imidazole); Tetrachlorobenzene‐1,4‐dicarboxylate; Luminescence; Luminescence; Tetrachlorobenzene-1
• ISSN: 0044-2313; 1521-3749
• DOI: 10.1002/zaac.201600244

The coordination polymers, {[Co(bbim)2(H2O)2](tcbdc)·2H2O}n (1), {[Ni(tcbdc)(bbim)(H2O)2]·2DMF}n (2), and {[Cu2(tcbdc)2(bbim)4]·4H2O}n (3) [bbim = 1,1′‐(1,4‐butanediyl)bis(imidazole) and tcbdc2– = tetrachlorobenzene‐1,4‐dicarboxylate] were synthesized and characterized by IR spectroscopy, elemental analysis, thermogravimetric analysis, luminescence, and single‐crystal X‐ray diffraction analysis. Complex 1 has a double‐stranded chain structure through doubly bridged [Co(bbim)2] units. Complex 2 exhibits two‐dimensional square grid, whereas complex 3 has a three‐dimensional porous network structure with an unprecedented 44·611 topological structure through interpenetrating square grid. The water molecules in complex 3 occupy the vacancy through three kinds of hydrogen bond interactions. Upon excitation at 370 nm, complexes 1–3 present solid‐state luminescence at room temperature.