Synthesis and spectroscopic characterization of cobalt(II) thiosemicarbazone complexes

Synthesis, spectral and structural studies on some new isonicotinic thiosemicarbazide complexes and its biological activity

“…The spectrum showed two bands in the visible region at 16235 and 14750 cm -1 which were assigned to 4 T 1g → 4 T 1g (P) (ν 3 ) and 4 T 1g → 4 A 2g (ν 2 ) transitions, of octahedral geometry around the metal ion [33]. The spectral data are utilized to compute important ligand field parameters using the spin allowed transitions of the d 7 -system.…”

Cyclopalladated complexes containing tridentate thiosemicarbazone ligands of biological significance: Synthesis, structure and antimalarial activity

“…Since then there have been extensive reports on the synthesis of thiosemicarbazone complexes with metals including vanadium [24,25], zinc [26], cobalt [27], gold [28], nickel [22,29], silver [30], copper [31e33] and iron [34]. Varying the substituents of the C 2 carbon of thiosemicarbazone ligands influences their bonding mode to the metal.…”

Spectroscopic Characterization and Catalytic Activity of Some Cu(II)-thiosemicarbazide Complexes

“…The IR spectrum of HTS showed the m s ðNH 2 Þ; m as ðNH 2 Þ; m(NH); dðNH 2 Þ and thioamide bands at 3365, 3265, 3186, 1618 and (1528, 1281, 998, 798) cm )1 , respectively [15]. The spectra of all complexes showed the disappearance of m(NH) and m(C=S) confirming the thioenolization of NHCS.…”