3-Formyl-4-hydroxyphenylguanidine hydrochloride and its Schiff base copper(II), zinc(II), and iron(III) chelates were synthesized and their inhibitory activity against bovine beta-trypsin were determined. Syntheses of Schiff base metal chelates were carried out from 3-formyl-4-hydroxyphenylguanidine, various L-amino acids, and divalent metal acetate. Their structures were established on the bas...

A series of cobalt, nickel, copper, and zinc complexes of bidentate Schiff bases derived from the condensation reaction of 4-amino-5-mercapto-3-methyl/ethyl-1,2,4-triazole with 2,4-dichlorobenzaldehyde were synthesized and tested as antimicrobial agents. The synthesized Schiff bases and their metal complexes were characterized with the aid of elemental analyses, magnetic moment measurements, sp...

The Ni atom in the centrosymmetric title compound, [Ni(C(10)H(9)N(4)S)(2)], is N,S-chelated by the deprotonated Schiff bases in a square-planar geometry. The -CH=N-N=C(S)-NH(2) frament is planar. Adjacent mol-ecules are linked by hydrogen bonds between the indolyl -NH (donor) site and the double-bond =N- (acceptor) site of an adjacent mol-ecule, forming a layer motif.

Cu2O nanoparticles were synthesized by thermal treatment in liquid paraffin without any inert gas protection using nano structures of Schiff base copper (II) complex (1) as precursor. Liquid paraffin was used as solvent and reductant. Span 80 was applied to control the morphology of cuprous oxide nanoparticles. The nano structure of the complex was characterized by X-ray diffraction measurement...

The Schiff base complexes of Co(II), Ni(II) Cu(II) and Zn(II) have been synthesized from 4pyridine carboxaldehyde with 4-aminopyridine. They have been characterized by elemental analysis, molar conductance, molecular weight determination, IR, XRD and SEM. The metal in the Schiff base complex is hexa coordinated which binds through pyridine nitrogen, azomethine nitrogen and nitrate units of meta...

A Schiff base was prepared from the interaction of ethanolic solutions of 2-hydroxy-1– naphthaldehyde and butylenediamine. The complexes were synthesized by refluxing the mixture of ethanolic solutions of the Schiff base and respective metal (II) chloride. Their solubility, melting point/decomposition temperature, molar conductance, elemental analysis and IR were carried out. The melting point ...

The dicopper(II) complex [Cu2(R'SSR)2(SO4)2] (1), where R'SSR is a Schiff base, has been prepared from the reaction of CuSO4.5H2O with the Schiff base N,N'-1,1'-dithiobis(ethylenesalicylaldimine)(H2RSSR) and structurally characterized by X-ray crystallography. The crystal structure of 1 shows two {Cu(R'SSR)}2+ units linked by two sulfate ligands each showing a eta3,mu2-binding mode. The Cu...Cu...

In this study, mononuclear octahedral cobalt(III) Schiff base complex [CoL3], L = (5-bromo-2-hydroxybenzyl-2-furylmethyl)imine, was synthesized from the reaction of Co(NO3)2•6H2O and the Schiff base ligand L in methanol as solvent. It used as a new precursor to prepare spinel type cobalt oxide nanoparticles by a facile solid-state thermal decomposition. Controlling the temperature and time, Co3...