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Cobalt(II), Zinc(II) and Cadmium(II) Coordination Polymers Assembled by Flexible 5,5 '-(But-2-ene-1,4-diylbis(oxy))diisophthalic Acid and 1,2-Bis((1H-imidazol-1-yl)methyl)benzene Ligands

2021    Ciftci, Esengul; Erer, Hakan; Arici, Mursel; Yesilel, Okan Zafer

Four new two and three dimensional coordination polymers, namely, [Co-2(mu(4)-L)(mu-obix)(2)](n) (1), [Zn-2(mu(4)-L)(mu-obix)(2)](n) (2), {[Zn-2(mu(4)-L)(mu-obix)(2)]center dot 2CH(3)CN}(n) (3), and {[Cd-2(mu(4)-L)(H2O)(4)(mu-obix)](n)center dot 2H(2)O}(n) (4), where H4L = 5,5 '-(but-2-ene-1,4-diylbis(oxy))diisophthalic acid and obix = 1,2-bis((1H-imidazol-1-yl)methyl)benzene), were synthesized under solvothermal conditions. Their structures have been determined by single-crystal X-ray diffraction analyses, infrared spectra (IR) and elemental analyses. Compounds 1 and 2 were isostructural and displayed 3D 3-fold interpenetrating frameworks with mog moganite topologies. Compound 3 featured a 2D 2-fold interpenetrating network with 3,4L13 topology. Compound 4 exhibited a 2D layer structure with 3,4-connected 3,4L13 topology. Furthermore, luminescence and thermal properties of the compounds were investigated in detail.