Co(II) and Cd(II) Complexes Derived from Heterocyclic Schiff-Bases: Synthesis, Structural Characterisation, and Biological Activity

Table 3

U.V-Vis spectral data in DMSO solutions.

Compound	𝜇eff (BM)	Band position (𝜆nm)	Extinction coefficient; 𝜀max (dm^3 mol^−1 cm^−1)	Assignments
L^1		270	3773	𝜋→𝜋^∗
		376	147	𝑛→𝜋^∗
[Co^II (L^1)2]Cl2		269	2797	𝜋→𝜋^∗
	3.91	490	75	^4T1g^(F)→^4T1g^(P)
		674	91	^4T1g^(F)→^4A2g^(F)
[Cd^II (L^1)2]Cl2		294	587	𝜋→𝜋^∗
		330	682	CT
L^2		261	3577	𝜋→𝜋^∗
		314	2466	𝑛→𝜋^∗
[Co^II (L^2)2]Cl2		270	3737	𝜋→𝜋^∗
	3.87	424	154	^4T1g^(F)→^4T1g^(P)
		633	147	^4T1g^(F)→^4A2g^(F)
[Cd^II (L^2)2]Cl2		269	888	𝜋→𝜋^∗
		302	1601	CT