نتایج جستجو برای: schiff base ligand

تعداد نتایج: 364867  

2008
Jin-Cai Wu

The title compound, [Al(CH(3))(2)(C(29)H(39)N(2)O(2))], exhibits disorder of one of the tert-butyl groups on the Schiff base ligand, where each methyl group is located over two sites, with occupancy factors of 0.57 (1) and 0.43 (1). The geometry around the Al(III) atom is distorted tetra-hedral, defined by two methyl groups, one N and one O atom from the Schiff base ligand.

2009
Jing-Chun Xing Yu-Long Bo Bing Zhang Wen-Zhi Li

In the title complex, [CuEr(C(19)H(20)N(2)O(4))(NO(3))(3)]·CH(3)COCH(3), the Cu(II) ion is coordinated in a square-planar environment by two O atoms and two N atoms of a Schiff base ligand. The Er(III) ion is bis-chelated by three nitrate ligands and coordinated by four O atoms of the Schiff base ligand in a slightly distorted bicapped square-anti-prismatic environment.

2009
Jun Zhang Xiao-Dan Chen Huai-Hong Zhang Bai-Wang Sun

The title compound, [Cu(2)(C(14)H(13)N(2)O)(2)(N(3))(2)], was synthesized by the reaction of Cu(NO(3))(2)·3H(2)O with the Schiff base 2-[1-(2-pyridylmethyl-imino)eth-yl]phenol (HL) in methanol-water solution, adding NaN(3) as the bridging ligand. The asymmetric unit contains one half-mol-ecule, the other half being generated by the inversion center. Each Cu(II) atom shows a slightly distorted t...

Journal: :iranian chemical communication 2016
reza golbedaghi ehsan alavipour

in this paper, we report the synthesis and characterization of a new symmetric macroacyclic schiff base ligand (h2l) and related complexes with different metals. (h2l) was synthesized by the one pot condensation reaction of 2-[2-(2-formyl phenoxy)ethoxy]benzaldehyde and 2-aminobenzenethiol in a 1:2 molar ratio. the acyclic schiff base was characterized by ir, nmr spectroscopy and elemental anal...

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...

In this paper, we report the synthesis and characterization of a new symmetric macroacyclic Schiff base ligand (H2L) and related complexes with different metals. (H2L) was synthesized by the one pot condensation reaction of 2-[2-(2-formyl phenoxy)ethoxy]benzaldehyde and 2-aminobenzenethiol in a 1:2 molar ratio. The acyclic Schiff base was characterized by IR, NMR spectroscopy and elemental anal...

2015
Ali Athar Farmanullah Khan Wasim Ahmed Zakir Khan

Metal complexes of Cu (II), Co (II), Ni (II) and Zn (II) of Schiff based derived from 5-bromo-2hydroxybenzaldehyde and 4-nitobenzenesulfonamide have been prepared and characterized on the basis of physical characteristics, micro-analytical data, H NMR, FTIR spectrum and electronic data. The spectrum data 1 exhibit coordination of Schiff base with metal through imine nitrogen and oxygen atom and...

2008
Zhanglei Qiu Lianzhi Li Yan Liu Tao Xu Daqi Wang

In the title complex, [Cu(C(15)H(13)NO(4))(C(10)H(8)N(2))], the Schiff base ligand is derived from the condensation of 2-hydr-oxy-1-naphthaldehyde and l-threonine. The Cu(II) atom is five-coordinated by one N atom and two O atoms from the Schiff base ligand and by two N atoms from a 2,2'-bipyridine ligand in a distorted square-pyramidal geometry. In the crystal structure, the combination of int...

2009
Wei Wang Yong-Miao Shen

The mol-ecule of the title compound, [NaNi(C(18)H(18)N(2)O(4))(C(2)N(3))(H(2)O)], is approximately planar, with a maximum deviation from the mol-ecular plane of 0.770 (5) Å. The coordination environment of the Ni(2+) ion is distorted square-planar and it is N(2)O(2) coordinated by the 6,6'-dimeth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolate Schiff base ligand. The Na(+) atom i...

2009
Hui-Quan Xiao

The mol-ecule of the title compound, [NaNi(C(18)H(18)N(2)O(4))(ClO(4))(CH(3)OH)], is almost planar, the maximum deviation from the molecular plane being 5.3 (1) Å. The Ni(2+) ion is N(2)O(2) coordinated by the Schiff base ligand, leading to a slightly distorted square-planar environment. The Na atom is chelated by the four O atoms of the Schiff base ligand and is coordinated by the O atoms of a...

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