Synthesis, Characterization, Antimicrobial, DNA Cleavage, and Antioxidant Studies of Some Metal Complexes Derived from Schiff Base Containing Indole and Quinoline Moieties

Table 4

Electronic spectral bands and ligand field parameters of the Co(II), Ni(II), and Cu(II) complexes in DMF (10⁻³ M) solution.

Complexes	Transitions in cm^−1			Dq (cm^−1)	𝐵^′ (cm^−1)	𝛽	𝛽%	𝜈2/𝜈1	LFSE (k cal)
	𝜈1^∗	𝜈2	𝜈3
Cu(II) complex		13769–17463		1530	—	—	—	—	26.22
Co(II) complex	7447	15977	19518	853	877	0.843	9.680	1.480	14.622
Ni(II) complex	9680	15604	25634	968	812	0.780	21.92	1.470	33.188

∗Calculated values.