A series of new ferrocene Schiff base derivatives, (C10H6N2)C:NN:CRFc, (C10H6N2)C:NC6H4N:CRFc, (C10H6N2)C:NC6H4C6H4N:CRFc, (R = H, Me; Fc = ferrocenyl), were prepared from 4,5-diazafluoren-9-one derivatives and ferrocene. The derivatives were characterized by elemental anal. and IR, UV, mass spectral, and 1H NMR spectral data. Ferrocene derivatives quench Ru(bpy)32+ with high efficiency. The Stern-Volmer plot is linear; the bimol. quenching rate constant has a magnitude of 109 dm3/mol譻. The quenching process of the Ru(bpy)32+ is carried out by a reductive mechanism.

Key words: SCHIFF BASE, PHENANTHROLINE P, FERROCENE, BIPYRIDINE P, RUTHENIUM COMPLEX, FERROCENE P, QUENCHING