Mixed ligand complexes of β-diketonates: synthesis, characterization, and FAB mass spectral analysis

Modification on Synthesis of Mixed Ligand Chelates by Using Di- and Trivalent Transition Metal Ions with Schiff Base as Primary Ligand

“…The spectrum of Ni(II) chelate shows two bands at 294 nm (34,014 cm −1 ) and 396 nm (25,253 cm −1 ) corresponding to 3 A 2 g(F) → 3 T 2 g(F) and 3 A 2 g(F) → 3 T 1 g(P) transitions. Based on the nature of the bands and the magnetic moment of the chelate (2.49 BM), an octahedral geometry was proposed [18]. The spectrum of Cu(II) chelate reveals two bands at 387 nm (25,840 cm −1 ) and 797 nm (12,547 cm −1 ) due to 2 Eg → 2 T 2 g transitions.…”