نتایج جستجو برای: schiff base complex

تعداد نتایج: 1020997  

2010
Jing-Chun Xing Xiao-Guang Cui Bing Zhang Wen-Zhi Li

In the title complex, [CuNd(C(20)H(22)N(2)O(4))(NO(3))(3)], the Cu(II) ion is coordinated in a distorted square-planar environment by two O atoms and two N atoms of a tetra-dentate Schiff base ligand. The Nd(III) ion is ten-coordinated by three bis-chelating nitrate groups and four O atoms of the Schiff base ligand. The atoms of one of the nitrato ligands are disordered over two sets of sites, ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2014
hamid golchoubian omeleila nazari ghodsieh soleimani mojtaba mohseni

nickel(ii) complex of [nil2](clo4)2, where l is an unsymmetrical tridentate ligand of 2-(2-aminoethyl)imino-3-butanone oximehas been synthesized by a template condensation reaction. the complex was characterized on the basis of microanalytical, spectroscopic, and other physicochemical properties. x-ray diffraction study of the complex reveals nickel(ii) center in a distorted octahedral environm...

2011
Iran Sheikhshoaie Vratislav Langer Seyed Ali Yasrebi

In the title benzil-idene Schiff base molybdenum(VI) complex, [Mo(C(15)H(12)N(2)O(3))O(2)(CH(3)OH)], the Mo(VI) ion is coordinated by two oxide O atoms and by two O atoms and one N atom of the tridentate N'-(3-meth-oxy-2-oxidobenzyl-idene)benzo-hydrazidate (L) Schiff base ligand. The methanol O atom completes the distorted octa-hedral configuration of the Mo(VI) atom. Strong O-H⋯N hydrogen bond...

2010
Wen-Jun Zhou Yin-Zhi Jiang Yang Zou

The Cu(II) atom of the title complex, [Cu(C(16)H(12)ClNO(3))(C(3)H(4)N(2))]·H(2)O, has a distorted square-planar coordination geometry formed by a tridentate Schiff base dianion and an imidazole ligand. The imidazole is nearly coplanar with the coordination plane, the dihedral angle between the planes being 3.73 (12)°. In the Schiff base ligand, the two benzene rings are oriented at a dihedral ...

2008
Xue-Wen Zhu Xu-Zhao Yang

The title complex, [ZnBr(2)(C(13)H(20)N(2)O(2))], is a mononuclear zinc(II) compound derived from the zwitterionic form of the Schiff base (E)-2-eth-oxy-6-((3-(methyl-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 by two bromide ions, in a tetra-hedral coordination geometry. Adjacent mol-ecules are linke...

2016
R. SURESH P. N. SUDHA

The Carboxymethyl chitosan Schiff base (CSB) derivative and its cobalt and nickel complexes (CSB-Co & CSB-Ni) have synthesized. The FTIR results showed the interaction with the amine of Carboxymethyl chitosan and aldehyde confirming the Schiff base formation. The XRD results, in comparison to CMC, displayed weaker peaks, which shows a decrease in crystalline properties and also exhibits the amo...

A novel Schiff-base ligand (L: 2-[(4-chloro-2-oxo-2H-chromen-3-ylmethylene)-amino] propionic acid) was prepared from the reaction of 4-chloro3-formylcoumarin and alanine amino acid. Copper (II) complex was synthesized from the reaction of the ligand with Cu (OAc)2. H2O in ethanol. The ligand and its metal complex were characterized by elemental analysis (CHN), ICP, thermal analysis (TGA), Fouri...

E. Rashtizadeh F. Farzaneh

The Fe3O4@SiO2@APTMS@Glu-His@V complex was prepared with modification of iron oxide magnetic nanoparticles with (3-aminopropyl) trimethoxysilane (APTMS) and glutaraldehyde-L-histidine Schiff base followed by complexation with VOSO4. Characterization of the Fe3O4@SiO2@APTMS@Glu-His@V complex was carried out by means of FTIR, XRD, SEM, EDX, TEM, AAS and VSM techniques. It was found that Fe3O4@SiO...

2011
Jing-Chun Xing Bing Zhang Wen-Zhi Li Xiao-Guang Cui

In the monomeric dinuclear title complex, [CuSm(C(20)H(22)N(2)O(4))(NO(3))(3)], the four-coordinate Cu(II) ion has a square-planar geometry involving two O atoms and two N atoms of the deprotonated Schiff base ligand. The Sm(III) ion is ten-coordinate, chelated by four O donor atoms of the Schiff base and two O atoms each from three bidentate nitrate groups, one of which is disordered over two ...

2017
Julia A Rusanova Dmytro Bederak

The title dinuclear copper(II) complex [Cu2(C18H16Br2N2O4S2)2] was prepared by direct synthesis of a dianionic Schiff base derived from 5-bromo-salicyl-aldehyde and cyste-amine. The discrete mol-ecules lie across inversion centers and crystallize with two di-methyl-formamide (DMF) mol-ecules of crystallization. The unique CuII ion is four-coordinated by two tetra-dentate Schiff base ligands in ...

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