Syntheses, Structures, and Characterization of Two Compounds with 1-(3-Carboxyphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic Acid

Hydrothermal reaction of Mn(II), Zn (II) ion with 1-(3-carboxyphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (Hcpmtc) ligand afforded two coordination complexes: {Mn(cpmtc)(2)(H2O)(2)}(n) (1), {Zn(cpmtc)(3)(H2O)}(n) (2). And the crystal structures were determined via single-crystal X-ray diffraction. Complex 1 crystallizes in monoclinic space group P2(1)/c, a=1.183 52(19) nm, b=1.198 01(19) nm, c=0.998 76(16) nm, beta=113.201 degrees, while complex 2 crystallizes in the monoclinic system, space group P2(1)/c, a=1.023 3(3) nm, b =1.172 0(4) nm, c=1.023 3(3) nm, beta=92.8700 degrees. In addition, the two compounds are characterized by FT-IR and solid-state fluorescent emission spectroscopy.