نتایج جستجو برای: tridentate schiff base ligands

تعداد نتایج: 362735  

2010
Nura Suleiman Gwaram Nurul Azimah Ikmal Hisham Hamid Khaledi Hapipah Mohd Ali

In the title compound, [Ni(NCS)(2)(C(13)H(19)N(3)O)(H(2)O)], the Ni(II) ion is six-coordinated by the N,N',N''-tridentate Schiff base, the N atoms of two thio-cyanate ligands and one water O atom in a distorted octa-hedral geometry. Intra-molecular C-H⋯N and C-H⋯O hydrogen bonds occur. In the crystal, O-H⋯S, O-H⋯O and C-H⋯S hydrogen bonds link adjacent mol-ecules into layers parallel to the ac ...

2008
Grzegorz Romanowski Tadeusz Lis

In the crystal structure of the title compound, [V(2)(C(22)H(21)N(2)O(2))(2)O(4)]·2H(2)O, oxide-bridged dimers of the complex are linked to water mol-ecules by hydrogen-bonding inter-actions. The two five-membered chelate rings in the dimeric mol-ecule both adopt twist conformations. Each V(V) atom is six-coordinated by one oxide group and by two N and one O atom of the tridentate Schiff base l...

2009
Yan-Qiu Dang Hong-Jun Yang Lai-Jin Tian

The title compound, [Ni(C(25)H(19)N(4)O(2))(2)], which was obtained by the reaction of nickel(II) perchlorate with 2,6-diformyl-4-methyl-phenol and (tri-2-pyridylmeth-yl)amine in methanol solution, is a discrete monometallic complex. The Ni(II) atom is six-coordinated by the phenolate O, imine N and pyridine N atoms from two tridentate Schiff base ligands in a distorted NiN(4)O(2) octa-hedral g...

2010
Nura Suleiman Gwaram Nurul Azimah Ikmal Hisham Hamid Khaledi Hapipah Mohd Ali

In the title compound, [Cu(NCS)(2)(C(13)H(19)N(3)O)], the Cu(II) ion is five-coordinated by the N,N',N''-tridentate Schiff base and the N atoms of two isothio-cyanate ligands in a square-pyramidal geometry. In the crystal, C-H⋯N, C-H⋯O and C-H⋯S inter-actions link adjacent mol-ecules into layers parallel to the ac plane. A weak inter-molecular π-π inter-action occurs between the aromatic rings ...

2011
Nura Suleiman Gwaram Nurul Azimah Ikmal Hisham Hamid Khaledi Hapipah Mohd Ali

In the title complex, [Co(NCS)(2)(C(13)H(19)N(3)O)(H(2)O)], the Co(II) ion is six-coordinated by the N,N',N''-tridentate Schiff base, the N atoms of two thio-cyanate ligands and one water mol-ecule in a distorted octa-hedral geometry. Intra-molecular C-H⋯N and C-H⋯O hydrogen bonds occur. In the crystal, inter-molecular O-H⋯O, O-H⋯S, C-H⋯S and S⋯S [3.5546 (18) Å] inter-actions result in an infin...

ژورنال: طلوع بهداشت یزد 2013
احرامپوش, محمدحسن, امرالهی, محسن , جمشیدی, بهزاد , طباطبایی, معصومه , عسکر شاهی, محسن , قانعیان, محمدتقی ,

  Background: The heavy metals are the most important pollutants their concentration of which in the environment is increasing in connection with cities and industrials development. One of these metals is chromium which, in the trivalent and Hexavalent oxidation state, is used in industries such as electroplating, glass, ceramic, tannery and leather. Hexavalent Chromium has proven several healt...

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: :journal of ultrafine grained and nanostructured materials 2015
aliakbar dehno khalaji debasis das

in this paper, two double helical dinuclear copper(ii) complexes of bis-n,o-bidentate schiff base ligands bis(3-methoxy-n-salicylidene-4,4'-diaminodiphenyl)sulfone (l1) and bis(5-bromo-n-salicylidene-4,4'-diaminodiphenyl)sulfone (l2) were prepared and characterized by elemental analyses (chn), as well as thermal analysis. elemental analyses (chn) suggested that the reaction between ligands and ...

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