نتایج جستجو برای: schiff bases

تعداد نتایج: 72031  

2010
Li-Jun Liu

In the title mononuclear cobalt(III) compound, [Co(C(9)H(8)ClNO(2))(C(9)H(9)ClNO(2))], the Co(II) atom is six-coordinated by two imine N atoms, two phenolate O atoms, and one hy-droxy and one oxide O atom from two Schiff base ligands, forming an octa-hedral geometry. In the crystal structure, adjacent mol-ecules are linked through inter-molecular O-H⋯O hydrogen bonds. The 2-oxidoethyl group is ...

2010
Yu Zhu

In the title mononuclear copper(II) complex, [Cu(C(12)H(17)N(2)O(2))(NCS)], the Cu(II) atom is four-coordinated by an NNO-donor set of the tridentate Schiff base ligand and the N atom of a terminal thio-cyanate ligand in a slightly distorted square-planar geometry.

2008
Grzegorz Romanowski Michał Wera Artur Sikorski

A new monoclinic polymorph of the title compound, [V(2)(C(10)H(13)N(2)O)(2)O(4)], which is a centrosymmetric dimer, crystallizes in space group P2(1)/c, whereas the previously known polymorph crystallizes in the ortho-rhom-bic space group Pbca [Mokry & Carrano (1993 ▶). Inorg. Chem.32, 6119-6121]. Each V(V) atom is six-coordinated by one oxide group, two N atoms and one O atom from the Schiff b...

2009
Morteza Montazerozohori Mohammad Hossein Habibi Mehdi Amirnasr Keita Ariyoshi Takayoshi Suzuki

The Co(II) atom in the title monomeric Schiff base complex, [CoCl(2)(C(21)H(22)N(2))], is bonded to two Cl atoms and to two N atoms of the Schiff base ligand N,N'-bis-[(E)-3-phenyl-prop-2-en-1-yl-idene]propane-1,3-diamine in a distorted tetra-hedral geometry. The mol-ecule has an idealised mirror symmetry, but is not located on a crystallographic mirror plane.

2009
Hai-Yan Li Li-Jun Wang Jian Hou Qing-Fu Zeng

In the title compound, [Fe(C(14)H(12)NOSe(2))(2)], the Fe(II) ion (site symmetry ) is four-coordinated by two N,O-bidentate Schiff base ligands, resulting in a slightly distorted trans-FeN(2)O(2) square-planar coordination for the metal ion.

2010
Karla Fejfarová Aliakbar Dehno Khalaji Michal Dušek

The title Schiff base compound, C(16)H(16)BrNO(3), adopts an E configuration with respect to the C=N bond. The dihedral angle between the two aromatic rings is 64.02 (6)°.

2011
Qiong-Jie Wu Xiao-Hua Chen Jiang Jiang Bi-Qiong Cai Yong-Ping Xie

In the title complex, [Co(C(15)H(12)N(3)O(4))(2)Cl(C(6)H(7)N)], the Co(III) ion is coordinated by two N atoms and two O atoms from two deprotonated Schiff base ligands, one N atom from a 4-methyl-pyridine ligand and one Cl atom, forming a distorted octa-hedral geometry. The Co(III) ion is displaced by 0.038 (2) Å from the equatorial plane towards the axial Cl atom.

2010
Yi Chen Chan Abdussalam Salhin Melati Khairuddean Madhukar Hemamalini Hoong-Kun Fun

The title compound, C(21)H(15)NO(4), was synthesized by reducing the Schiff base obtained from acenaphthenequinone and ethyl-4-aminobenzoate. The dihedral angle between the essentially planar 1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinoline ring system [maximum deviation = 0.061 (2) Å] and the benzene ring is 75.08 (10)°. In the crystal, mol-ecules are connected via weak inter-molecular C-H⋯O hyd...

2009
Chunbao Tang

The title mononuclear nickel(II) complex, [Ni(C(18)H(18)N(2)O(4))(H(2)O)], possesses crystallographic mirror symmetry. The Ni atom is five-coordinated in a square-pyramidal geometry, with two imine N and two phenolate O atoms of the Schiff base ligand in the square plane, and the water O atom in the axial position. In the crystal, the mol-ecules are linked via inter-molecular O-H⋯O hydrogen bon...

Journal: :Journal of the American Chemical Society 2010
Cai-Ming Liu Ren-Gen Xiong De-Qing Zhang Dao-Ben Zhu

Both ferromagnetic and ferroelectric properties were observed in two enantiomerically pure nanoscale manganese cluster complexes supported by chiral Schiff base ligands, each of which comprises a 22-nucleus mixed-valence manganese(II/III) supratetrahedral cluster cation and an equilateral-triangle trinuclear manganese(III) cluster anion with C(3) symmetry.

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