نتایج جستجو برای: schiff base electrochemical complexes antioxidant

تعداد نتایج: 532330  

2016
Ikechukwu P Ejidike Peter A Ajibade

Mononuclear Ru(III) complexes of the type [Ru(LL)Cl2(H2O)] (LL = monobasic tridentate Schiff base anion: (1Z)-N'-(2-{(E)-[1-(2,4-dihydroxyphenyl)ethylidene]amino}ethyl)-N-phenylethanimidamide [DAE], 4-[(1E)-N-{2-[(Z)-(4-hydroxy-3-methoxybenzylidene)amino]ethyl}ethanimidoyl]benzene-1,3-diol [HME], 4-[(1E)-N-{2-[(Z)-(3,4-dimethoxybenzylidene)amino]ethyl}ethanimidoyl]benzene-1,3-diol [MBE], and N-...

Journal: :Dalton transactions 2015
Chuanjun Wang Yong Chen Wen-Fu Fu

New platinum(ii) and ruthenium(ii) mononuclear complexes with naphthalene-based Schiff base ligands L1 (H2-selnaph) and L2 (H2-selnaph-COOH) were synthesized: Pt-selnaph (), Pt-selnaph-COOH (), Ru-selnaph(4-picoline)2 (), and Ru-selnaph(isoquinoline)2 (). The complexes were characterized by NMR spectroscopy, matrix-assisted laser desorption/ionization time-of-flight spectrometry, and elemental ...

2013
ASHOK PANDEY

A series of coordination compounds have been prepared with tridentate Schiff base ligands, 2 ethyl-[(hydroxy propyl)]3, 1 (4H) quinazoline4-semicarbazone [EHPQS) and 2-ethyl-[(hydroxy propyl)]3, 1 (4H) quinazoline4-thiosemicarbozone [EHPQT]. The obtained complexes were characterized by molar mass, elemental analysis, infrared spectra, electronic spectra, magnetic susceptibility molar conductanc...

2013
Anita Sharma Manish Shah

A new Schiff base has been synthesized from 3-(3-nitrophenyl)-1-phenyl-1H-pyrazole-4carbaldehyde and O-amino phenol. Metal complexes of the Schiff base have been synthesized from acetate salt of Cu (II), Co (II) and Ni (II) metal in the alcoholic medium. The newly prepared Schiff base ligand and metal complexes have been characterized by various physicochemical techniques such as Elemental anal...

2013
P. Subramanian

An economical and environmental friendly method has been developed for the synthesis of Schiff base ligand N,N'bis(2-hydroxy-1-naphthylidene)-4-hydroxyphenylmethanediamine by one pot three components reaction of 2hydroxy-1-naphthaldehyde , 4-hydroxy benzaldehyde and ammonium acetate salt in the presence of triethyl amine under solvent free condition at room temperature. Cu(II), Ni(II) and Zn(II...

2014
Venkataswamy Sorna J. Sreeramulu

Synthesis and characterization of Schiff base with solid metal complexes derived from Vanillin and 2-amino-2ethyl-1, 3-propanediol (VAEPD) has been carried out. Structural elucidation of the Schiff base and its metal complexes [Cu(II) and Co(II)] were analyzed on the basis of various spectra like IR, electronic absorption spectra, NMR, ESR, TG-DTA and magnetic moments. From the spectral study, ...

Journal: :Molecules 2014
Pavel Kopel Karel Dolezal Vratislav Langer Daniel Jun Vojtech Adam Kamil Kuca Rene Kizek

The complexes of Fe(II), Mn(II) and Ni(II) with a combination of a Schiff base, nitrogen-donor ligand or macrocyclic ligand and trithiocyanuric acid (ttcH3) were prepared and characterized by elemental analysis and spectroscopies. Crystal and molecular structures of the iron complex of composition [Fe(L1)](ttcH2)(ClO4)·EtOH·H2O (1), where L1 is Schiff base derived from tris(2-aminoethyl)amine a...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1999
ali akbar khandar masoumeh khatamian

4(4-nitrophenyl-zao)-2-(2-methoxy phenimino)-phenol and its coordination compounds with ni(ii), cu(ii), co(ii) and fe(iii) have been synthesized and characterized by elemental analyses, ft-ir, far-ir, near ir, uv-vis, mass spectrometry and molar conductivity and their electrochemical behaviours are reported.

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
mohsen shabani mohammad yousefi majid abdouss fariborz aziznejad hashem shahrozvand

a series of complexes of the type trans-[co(acacen)(amine)2]clo4, where (acacen) is the (bis(acetyleacetone) ethylenediimine) and the amines are benzyl amine (bzlan) 1, 2-amino pyrimidine (2ampy) 2, n-methylpipirazine (nmpip) 3, 3-methyl pyridine (3mpy) 4, p-toluidine (p-toldn) 5, has been synthesized and characterized by uv-vis. and ft-ir. the kinetics of the substitution reaction of [co(acace...

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