Spectral Investigation and In Vitro Antibacterial Evaluation of Ni^II and Cu^II Complexes of Schiff Base Derived from Amoxicillin and α-Formylthiophene (αft)

Table 6

The relative peak positions () of the free ligand and metal complexes.

Compound	Peak positions () in nm
	transitions	transitions	LMCT band	d-d transition
HL	310–268	391, 361	—	—
Ni(Haαft)2	307, 272	391, 370	465	520
Cu(Haαft)2	285	370	450	—