Syntheses, Structures, and Properties of Two New Isostructural Complexes Based on 1-((Benzotriazol-1-yl)methyl)-1H-1,3-Imidazole and 1,4-Benzenedicarboxylate

Abstract

Self-assemblies of Co(II) or Zn(II) salts with 1-((benzotriazol-1-yl)methyl)-1H-1,3-imidazole (bmi) and 1,4-benzenedicarboxylic acid (1,4-H2bdc) gave rise to two new isostructural complexes, [Co(bmi)2(bdc)]n (1) and [Zn(bmi)2(bdc)]n (2). Single-crystal X-ray diffraction determination shows that both complexes possess similar chain structure, in which two carboxylate groups of each bdc2– anion coordinate to metal ions with chelating mode and the bmi groups hang at both sides of the chains with monodentate mode. Complexes 1 and 2 are further extended to 3-D supramolecular structures by π–π interaction and intermolecular force. IR spectra, PXRD patterns, fluorescent properties and thermostability of both complexes have been investigated.