Research Article

Synthesis, Characterization, and Biological Activity of Some Transition Metal Complexes of N-Benzoyl-N′-2-thiophenethiocarbohydrazide

Table 2

Electronic spectral bands and their assignments.

CompoundBand maxima
(cm−1)
Assignments

H2BTTH30495, 35220L
Mn(HBTTH)2 16140, 24620 6A1g 4T1g, C.T.
Fe(HBTTH)2(Et(OH) 11770, 20840, 24380 5T2 5B1, C.T.
Ni(BTTH)(H2O)2 16140, 25000 3A2g (F) 3T1g (F) ( ), C.T.
Cu(BTTH) 15635, 21560, 27790Envelope of 
2B1g 2A1g, 2B2g, 2Eg, C.T.

C.T.: Charge-transfer; L: intraligand transition.