Synthesis, spectroscopic characterization, electrochemical behaviour, reactivity and antibacterial activity of some transition metal complexes with 2-(N-salicylideneamino)-3-carboxyethyl-4,5-dimethylthiophene

Synthesis and Spectroscopic Characterization of Some Transition Metal Complexes of Schiff Base 3-(2-hydroxyphenylimino) methyl-4,5,-dimethyl-1-phenylpyrazol-3-in-2-one

“…The copper(II) complex has a magnetic moment value of 1.82 BM. The magnetic moment value together with the electronic spectral data are in well agreement with a distorted square planar geometry 22 . Zinc(II) complexes are diamagnetic and a tetrahedral geometry is most preferable for four coordinated zinc(II) complex 25 .…”

“…Electronic spectral data and magnetic susceptibility measurements have been used to establish the geometry of the metal complexes 20 . The electronic spectrum of cobalt(II) complex exhibited two bands around 605 nm(16529 cm together with the electronic spectral data indicates an octahedral geometry around the cobalt(II) ion 22 . Electronic absorption spectrum of nickel(II) complex shows weak bands at 580 nm (17241 cm -1 ) and 400 nm (25000 cm -1 ) which are assigned to 3 24 .…”

Green and Efficient Synthesis, Characterization and AntiBacterial Activity of Copper (II) Complexes with Unsymmetrical Bidentate Schiff Base Ligands

“…Schiff base ligands have been widely studied in the field of coordination chemistry mainly due to their facile syntheses, easily availability, electronic properties and good solubility in common solvents and they easily form stable complexes with most transition metal ions [6][7][8][9][10][11]. A large number of Schiff bases and their metal complexes have been found to possess important biological and catalytic activity.…”

Schiff bases: An emerging potent class of pharmaceuticals

“…The transition metal complexes having oxygen and nitrogen donor schiff bases possess unusual configuration, structural lability and are sensitive to molecular environment (Chakraborty et al, 1996). In recent years there has been considerable attention focused on the chemistry of metal complexes of schiff bases containing nitrogen and oxygen (Karuppasamy et al, 2009;Daniel et al, 2008). Semicarbazones are usually obtained by the condensation of semicarbazide with suitable aldehyde and ketones, may be named by adding the class name 'semicarbazone' after the name of the condensed aldehyde, RCHO or ketone, R 1 R 2 C=O.…”