the vo(iv) complexes of tridentate ono schiff base ligands derived from 2- aminobenzoicacid and salicylaldehyde derivatives were synthesized and characterized by ir, uv–vis and elemental analysis. electrochemical properties of the vanadyl complexes were investigated by cyclic voltammetry. a good linear correlation was observed between the oxidation potentials and the electron-withdrawing charac...

some new symmetrical tetraaza schiff base ligands containing 2-quinolinecarboxaldehyde moiety formed from condensation reaction of 2-quinolinecarboxaldehyde and o-phenylenediamine derivatives, such as n, nˊ-bis(2-quinolylmethylidene)-4-methoxy-1, 2-phenylenediimine (l1), n, nˊ-bis(2-quinolylmethylidene)-4-methy-1, 2-phenylenediimine (l2), n, nˊ-bis(2-quinolylmethylidene)-4-chloro-1, 2-phenylene...

The title complex, [ZnCl(2)(C(12)H(18)N(2)O)]·0.5H(2)O, is a mononuclear zinc(II) compound derived from the zwitterionic form of the Schiff base 2-[3-(dimethyl-amino)propyl-imino-meth-yl]-phenol. The Zn(II) atom is four-coordinated by the imine N and the phenolate O atoms of the Schiff base ligand, and by two chloride ions, in a distorted tetra-hedral coordination geometry. The dimethyl-ammonio...

addition of potassium cyanide to a mixture of schiff base and lithium perchlorate afforded a-aminonitriles in high yields. addition of potassium cyanide to a methanolic solution of schiff base and phosphoric acid afforded a-aminonitriles. when the reaction mixture was refluxed it gave a-amino acids in high yields.

In the title complex, [ZnI(2)(C(14)H(21)BrN(2)O)]·CH(3)OH, the asymmetric unit consists of a mononuclear zinc(II) complex mol-ecule and a methanol solvent mol-ecule. The compound was derived from the zwitterionic form of the Schiff base 4-bromo-2-[3-(diethyl-amino)propyl-imino-meth-yl]phenol. The Zn(II) atom is four-coordinated by the imine N and phenolate O atoms of the Schiff base ligand and ...

Three new complexes of Co(II), Ni(II), and Zn(II), containing ligand Schiff base (DHMA) derived from methyldopa (mdop) with 3-hydroxybenzaldehyde have been prepared. The synthesized its were diagnostics by using different physical techniques, results showed that the an octahedral shape. In addition it has studied adsorption behavior, Uv-Vis technique applied to survery isotherm adsorption. poss...

Mixed ligands biologically active complexes of cobalt(II), copper(II) and nickel(II) with nicotinoylhydrazine-derived ONO, NNO and SNO donor schiff-base ligands having the same metal ion but different anions such as sulphate, nitrate, oxalate and acetate have been synthesised and characterised on the basis of their physical, analytical and spectral data. In order to evaluate the role of anions ...

In the title mononuclear cobalt(III) compound, [Co(C(9)H(8)ClNO(2))(C(9)H(9)ClNO(2))], the Co(II) atom is six-coordinated by two imine N atoms, two phenolate O atoms, and one hy-droxy and one oxide O atom from two Schiff base ligands, forming an octa-hedral geometry. In the crystal structure, adjacent mol-ecules are linked through inter-molecular O-H⋯O hydrogen bonds. The 2-oxidoethyl group is ...

Protein-to-protein electron transfer (ET) is a critical process in biological chemistry for which fundamental understanding is expected to provide a wealth of applications in biotechnology. Investigations of protein-protein ET systems in reductive activation of artificial cofactors introduced into proteins remains particularly challenging because of the complexity of interactions between the co...