Metal-Based Biologically Active Compounds: Synthesis, Spectral, and Antimicrobial Studies of Cobalt, Nickel, Copper, and Zinc Complexes of Triazole-Derived Schiff Bases

Table 3

Electronic spectral data of metal complexes.

Compound	Transitions (cm^−1)			Dq cm^−1	B cm^−1	ν 2/ν 1	β	β%
	ν 1	ν 2	ν 3
Co(L^1)(OAc)·3H2O	10897	23031*	20998	1213.4	755.9	2.11	0.778	22.2
Co(L^1)2·2H2O	10885	22884*	20993	1199.9	748.1	2.10	0.770	23.0
Ni(L^1)(OAc)·3H2O	10117	17201	24932	1011.7	785.4	1.70	0.754	24.5
Ni(L^1)2·2H2O	10123	17320	24950	1012.3	793.4	1.71	0.762	23.7
Co(L^2)(OAc)·3H2O	10923	23017*	20010	1209.4	683.9	2.09	0.704	29.6
Co(L^2)2·2H2O	10935	23041*	20016	1210.6	683.5	2.10	0.703	29.6
Ni(L^2)(OAc)·3H2O	9999	16380	24885	999.9	751.2	1.63	0.721	27.9
Ni(L^2)2·2H2O	9957	16397	24889	995.7	761.0	1.64	0.731	26.9

*Calculated value.