Synthesis and Crystal Structures of Zn(II)/Co(II) Complexes with Condensed Heterocyclic Based 1,2,4-Triazole
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Three Zn(II)/Co(II) coordination compounds with condensed heterocyclic based 1,2,4-triazole 8H-4,7-diphenyl-1,2,4-triazolo[3,4-b]-1,3,4-thiadiazines (L1), and 8H-4-phenyl-7-(pyridine-2-yl)-1,2,4-triazolo[3,4-b]-1,3,4-thiadiazines (L2), Co(L1)2Cl2 (1), Zn(L1)2Cl2 (2). and Co(L2)2Cl2 (3) were synthesized and structurally characterized by elemental analyses, IR spectroscopy and single-crystal X-ray diffraction. Complexes 1, 2 and 3 have mononuclear structure, the mononuclear structures of 1 and 2 were further assembled by the C–H⋯Cl and C–H⋯N weak interactions into an infinite 2-D supramolecular sheet.