International Journal of Inorganic Chemistry

Research Article

Thermal, Spectral, Fluorescence, and Antimicrobial Studies of Cobalt, Nickel, Copper, and Zinc Complexes Derived from 4-[(5-Bromo-thiophen-2-ylmethylene)-amino]-3-mercapto-6-methyl-5-oxo-[1,2,4]triazine

Table 2

1H NMR spectral data of Schiff base and Zn(II) metal complexes.
Compound 1H NMR (ppm)
HL [C9H7BrN4OS2]CDCl3, 2.35 (s, 3H, –CH3), 7.16 (d, 1H, Ar–H), 7.33 (d, 1H, Ar–H), 8.52 (s, 1H, –N=CH–), 10.30 (s, 1H, –SH)
Zn(L)(OAc)·3H2O [C11H15BrN4O6S2Zn]DMSO d6, 2.18 (s, 3H, –CH3), 7.22 (d, 1H, Ar–H), 7.38 (d, 1H, Ar–H), 8.80 (s, 1H, –N=CH–), 1.85 (s, 3H, CH3COO)
Zn(L)2·2H2O [C18H16Br2N8O4S4Zn]DMSO d6, 2.20 (s, 6H, –CH3), 7.38 (d, 2H, Ar–H), 7.59 (d, 2H, Ar–H), 8.73 (s, 2H, –N=CH–)