Synthesis, crystal structure, and spectral properties of a series of metal complexes with 3,4-dimethyl-5-(2-pyridyl)-1,2,4-triazole

摘要

A series of metal complexes with 3,4-dimethyl-5-(2-pyridyl)-1,2,4-triazole (L), trans-[ CoL2(MeOH)2](ClO4)2 (1), trans-[NiL2(MeOH)2](ClO4)2 (2), trans-[CuL2(ClO4)2] (3) and trans-[CoL2(NCS)2] (4) have been synthesized, and their molecular structures determined by X-ray crystallography, UV, IR, TGA/DSC, powder XRD and elemental analyses. Structural analyses indicate that both complexes 1 and 2 have a pseudo-octahedral [MN4O2] core with two ClO4~- ions in the trans position. While complexes 3 and 4 show a distorted octahedron containing two trans-coordinated anions in 3 with ClO4~- but in 4 with NCS~-.