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 1

IR spectral data of the ligand and its metal complexes.

Compound (C=O) (N=CH) (C–S) (S–H) (OOCCH3) (H2O/OH) (M–S) (M–N)

HL169015992476
Co(L)(OAc)·3H2O1685158274817443310376498
Co(L)2·2H2O168815757503318378493
Ni(L)(OAc)·3H2O1686158775617443298382488
Ni(L)2·2H2O168615897563298381488
Cu(L)(OAc)·H2O1687158274817453307371490
Cu(L)216861583752373495
Zn(L)(OAc)·3H2O1689158073717433313372492
Zn(L)2·2H2O169015827333315373490