Synthesis, characterization and catalytic activity of copper [II], nickel [II] and cobalt [II] complexes derived from novel hydrazone drivatives of oxamic hydrazide

A series of new coordination complexes of Cu[II], Ni[II] and Co[II] with omaxic hydrazide [L[1]], N,N' - [salicylidene]- oxamic hydrazide [L[2]] and N,N' - bis [naphthalidene] - oxamic hydrazide [L[3]] have been synthesized and characterized by elemental analysis, magnetic moment, IR, UV - Vis spectra nd molar conductance. The thermal behavior of the complexes was investigated by TG A and DTA techniques. The catalytic activity of the complexes to decolorize the Allura-Red [food dye] in presence of H[2]O[2] was studied

Synthesis and characterization of oxovanadium [IV] Schiff base complexes: spectral, magnetic and thermal studies

A series of new complexes of oxovanadium [IV] with Schiff bases derived from some aromatic diamines and 2-hydroxynaphthaldehyde was prepared and characterized by elemental analysis, spectral, conductance as well as by magnetic moment measurements. The oxovanadium [IV] complexes formed monomeric or dimeric complexes by ligand bridging. The structures of the complexes were found to depend on the position of the imine group link to the aromatic moiety. The reaction of oxovanadium [IV] complexes with thionyl chloride was also studies. Thermal analysis of some of the prepared complexes was discussed

Mononuclear and binuclear Mu [II] and Cu [II] chelates of schiff bases derived from 4-aminosalicylic acid

The complexes of Mn [II] and Cu [II] with Schiff bases derived from 4-aminosalicylic acid and some aromatic aldehydes have been prepared and characterized by elemental analysis, conductance measurements, thermal analysis [DTA], IR spectra, magnetic susceptibility measurements, electronic spectra as well as electron paramagnetic resonance [EPR] spectra

Spectroscopic studies of some schiff bases derived from indole and aniline derivatives or diamino Triazole with benzaldehyde derivatives

The electronic absorption spectra of the Schiff bases derived from indole and aniline derivatives or diaminotriazole with benzaldehyde derivatives were investigated in organic solvents of varying polarities. The important bands in IR-spectra of the compounds, as well as the main signals in 1H-NMR spectra were assigned and discussed in relation to molecular structure

Spectroscopic studies of the arylidene derivatives of some aminobenzoic acids hydrazides

The electronic absorption spectra of the arylidene derivatives of m- and p-aminobenzoic hydrazides were investigated in organic solvents of varying polarities and buffer solutions of different pH values. The behavior in buffer solutions was utilized for the determination of the acid dissociation constant. The important bands in the IR-spectra of compounds as well as the main signals in the 1H-NMR spectra were assigned and discussed in relation to molecular structure