Synthesis, Spectroscopic Characterization, and Biological Activities of Metal Complexes of 4-((4-Chlorophenyl)diazenyl)-2-((p-tolylimino)methyl)phenol

Table 4

Electronic spectral data of [CDTMP] and its metal(II) complexes.

Compound	λ max (cm^−1); ε (L mol^−1 cm^−1)	Transition	Geometry	μ eff (B.M.)
CDTMP (𝐋𝟏)	26100 (610); 33670 (5900)	n → π*; π → π*	—	—
[VO(CDTMP)2] (𝐋𝟏𝟏 )	12013 (121); 17182 (234); 24128 (510)	^2B2→ ^2E; ^2B2→ ^2B1; ^2B2 → ^2A1	Square pyramidal	1.75
[Co(CDTMP)2·2H2O] (𝐋𝟏𝟑 )	9267 (199); 11560 (175); 18115 (392)	^4T1g(F)→ ^4T2g(F); ^4T1g(F)→^4A2g(F); ^4T1g(F)→ ^4T2g(P)	Octahedral	4.82
[Ni(CDTMP)2·2H2O] (𝐋𝟏𝟒 )	10384 (156); 15822 (113); 22883 (119)	^3A2g(F)→^3T2g(F); ^3A2g(F)→^3T1g(F); ^3A2g(F)→^3T1g(P)	Octahedral	3.02
[Cu(CDTMP)2] (𝐋𝟏𝟓 )	14265 (1100); 22573 (1800); 25706 (1845)	^2B1g → ^2A1g; INCT*; INCT	Square planar	2.01

∗Intraligand charge transfer.