Abstract
The complexes [CdCl(mptc)(H2O)2]n (1), Zn(mptc)(Hmptc)Br (2), {[Zn(mptc)3]2[Zn(H2O)6]·4H2O} (3) and Zn(mpt)2Cl2 (4) (mpt=5-methyl-1-phenyl-1H-1,2,3-triazole) were prepared by 5-methyl-1-phenyl-1H-1,2,3-triazole-4-carboxylic acid (Hmptc) and Cd2+, Zn2+ respectively in different conditions. We found an interesting phenomenon of in situ decarboxylic reaction in complex 4. The same discovery was also in Zn(ipmt)2Br2 (5) (ipmt=1-(4-iodophenyl)-5-methyl-1H-1,2,3-triazole), which was obtained by the reaction of 1-(4-iodophenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (Hipmtc) with Zn2+ under solvothermal condition. And the crystal structures of 1–5 were determined via single-crystal X-ray diffraction. The complexes were characterized by FT-IR, elemental analyses, and solid-state fluorescent emission spectroscopy. Then, the possible mechanism of in situ solvothermal decarboxylation was discussed.
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