Synthesis, Characterization, and Biological Activity of N′-[(Z)-(3-Methyl-5-oxo-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene)(phenyl)methyl]benzohydrazide and Its Co(II), Ni(II), and Cu(II) Complexes

Table 5

Electronic spectra data of ligand and metal complexes.

Compounds	Bands (cm^−1) (, Lmol^−1cm^−1)	Assigned transition
HL^1	42,533 (10600)
	32,786 (7500)
	29,411 (9100)
·H2O	21,276 (228)	^4T1g(F) ⟶  ^4T1g(P)
	20,408 (224)	^4T1g(F) ⟶  ^4A2g(F)
	10,204 (165)	^4T1g(F) ⟶  ^4T2g(F)
·H2O	13,424(255)	^2B1g⟶  ^2A1g,
	16,354(135)	^2B1g⟶  ^2B2g
	22,722 (245)	^2B1g⟶  ^2Eg
·H2O	23,809 (225)	^3A2g⟶  ^3T1g(P)
	14,174 (172)	^3A2g⟶  ^3T1g(F)
	12,545 (142)	^3A2g⟶  ^3T2g(F)