Synthesis, Structural Characterization, and Biological Activity Studies of Ni(II) and Zn(II) Complexes

Table 3

Electronic, magnetic, and ligand field parameters of Ni(II) complexes.

Compound	Absorption maxima; (cm^−1)	Tentative assignments	Magnetic moment; (B.M)	𝜈2/𝜈1	10 Dq; (cm^−1)	B; (cm^−1)	𝛽	LFSE; (kJ·mol^−1)
[Ni(L1)2]	8532; 15200; 24900	^3A2g(F) → ^3T2g(F) (𝜈1); ^3A2g(F) → ^3T1g(F) (𝜈2); ^3A2g(F) → ^3T1g(P) (𝜈3)	3.12	1.78	8532	966	0.92	122.50
[Ni( L2)2]·H2O	8787; 16000; 24390	^3A2g(F) → ^3T2g(F) (𝜈1); ^3A2g(F) → ^3T1g(F) (𝜈2); ^3A2g(F) → ^3T1g(P) (𝜈3)	3.18	1.82	8787	935	0.89	126.19
[Ni(L3)2]·H2O	8313; 14705; 20833; 24390	^3A2g(F) → ^3T2g(F) (𝜈1); ^3A2g(F) → ^3T1g(F) (𝜈2); ^3A2g(F) → ^3T1g(P) (𝜈3)	3.25	1.76	8313	943	0.90	119.40
[Ni(L4)2]	8628; 16313; 24570	^3A2g(F) → ^3T2g(F) (𝜈1); ^3A2g(F) → ^3T1g(F) (𝜈2); ^3A2g(F) → ^3T1g(P) (𝜈3)	2.91	1.89	8628	999	0.95	123.92