Syntheses, Crystal Structures, and Properties of Three Co(II) Supramolecules Constructed From Phenyl Imidazole Dicarboxylates

Abstract

Three mononuclear cobalt(II) complexes, [Co(H2MOPhIDC)2 (H2O)2]·2H2O (H3MOPhIDC = 2-(3-methoxyphenyl)-1H-imida- zole-4,5-dicarboxylic acid) (1), [Co(H2MOPhIDC)2(H2O)2]· 2CH3CN (2), and [Co(H2PhIDC)2(H2O)] (3) (H3PhIDC = 2-phenyl-1H-imidazole-4,5-dicarboxylic acid), have been hydro(solvo)thermally synthesized by fine control over synthetic conditions such as solvent, pH value, and temperature. Their molecular structures have been characterized by IR spectra, elemental analyses, and thermogravimetric analyses and further characterized by single-crystal X-ray diffraction. Furthermore, the photoluminescent properties of the three complexes have been investigated.