Metal (II) Complexes Derived from Naphthofuran-2-carbohydrazide and Diacetylmonoxime Schiff Base: Synthesis, Spectroscopic, Electrochemical, and Biological Investigation

Table 3

Electronic spectral bands and ligand field parameters of the Co(II), Ni(II), and Cu(II) complexes in DMF (10⁻⁴ M) solution.

Complexes	Transitions in cm^−1			Dq (cm^−1)	B′ (cm^−1)	𝛽	𝛽%	𝜈2/𝜈1	LFSE (kcal)
	𝜈1^∗	𝜈2	𝜈3
[Co(C17H15O3N3)Cl2]𝑛	6902	14749	16447	784	699	0.720	28.01	2.136	13.44
[Ni(C17H15O3N3)Cl2]𝑛	7590	15151	24110	963	689	0.662	33.75	1.573	33.01
[Cu(C17H15O3N3)2Cl2]	14080–16130			1379	—	—	—	—	23.64

∗Calculated values.