Syntheses,crystal structures,and properties of four new coordination compounds of transition metals and imidazoledicarboxylic acid derivatives |
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| Abstract: | Four new transition metal coordination complexes, [Cd(H2pimdc)2(H2O)2]?·?4H2O (1), [Zn(H2pimdc)2(H2O)2]2?·?7H2O (2), and [M(H2pimdc)2] (M?=?Cu (3) or Ni (4), H2pimdc??=?2-propyl-4,5-imidazoledicarboxylate), have been prepared by conventional synthesis and characterized by elemental analyses, IR, TG, and single-crystal X-ray diffraction. H2pimdc? is a bidentate chelating ligand in 1 and 2, leading to 3-D supramolecular structures through hydrogen bonds. However, H2pimdc? is a tridentate chelating-bridge ligand in 3 and 4, which exhibit 2-D layer structures. Thermal properties and photoluminescence spectra of 1–4 were measured. |
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| Keywords: | Coordination complex Imidazoledicarboxylic acid Transition metal Photoluminescence |
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