E. Szlyk et al., SPECTROSCOPIC STUDIES OF ZN(II) HALIDES COMPLEXES WITH 5,7-DISUBSTITUTED DERIVATIVES OF 1,2,4-TRIAZOLO-[1,5A]-PYRIMIDINE, Polish Journal of Chemistry, 72(1), 1998, pp. 55-60
Complexes of ZnX2 (X = Cl, Br, I, SCN) with 5,7-dimethyl-1,2,4-triazol
o-[1,5a]-pyrimidine, 5,7-diphenyl-1,2,4-triazolo-[1,5a]-pyrimidine and
5,7-di-tert-butyl-1,2,4-triazolo-[1,5a]-pyrimidine were prepared and
characterized by IR (100-4000 cm(-1)) and H-1, C-13, N-15 NMR spectros
copies. Spectral data suggest pseudo-tetrahedral configuration around
Zn(II) atom with N-3 bonded heterocycles. Halides and thiocyanates (N
bonded) are in terminal positions.