Summary
Nickel(II) and copper(II) complexes of 2,5-dimethyl-1,3,4-thiadiazole Ni(DTZ)X2 (X = Cl or Br) and M(DTZ)2X2 (M = Ni, X = 1 or N03; M = Cu, X = Cl, Br or NO3) have been prepared. The i.r. spectra show that in all the complexes the ligand is N,N- or N-bonded to the metal while the sulfur atom does not participate in coordination, and that the halide ions are coordinated forming terminal M-X bonds. The NO -3 group is coordinated in both the nitrato complexes. Magnetic moments of 3.07–3.29 B.M. for the nickel(II) and 1.86–1.92 B.M. for the copper(II) complexes were observed. The Ni(DTZ)X2 complexes have a pseudo-tetrahedral [N2X2] coordination with N,N-bridging ligand molecules. The Ni(DTZ)2X2 and Cu(DTZ)2X2 complexes, with predominantly monodentate ligand, involve six-coordinate metal atoms with strong equatorial [N2X2] bonds and weaker axial bonds.
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Fabretti, A.C., Franchini, G.C. & Peyronel, G. Nickel(II) and copper(II) complexes of 2,5-dimethyl-1,3,4-thiadiazole. Transition Met Chem 3, 363–366 (1978). https://doi.org/10.1007/BF01393592
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DOI: https://doi.org/10.1007/BF01393592