scholarly journals Crystal structure of [2-({2-[(2-azanidylbenzylidene)amino]benzylidene}amino)-4-chlorophenolato]nickel(II)

2017 ◽  
Vol 73 (4) ◽  
pp. 637-639 ◽  
Author(s):  
Fumiya Kobayashi ◽  
Atsushi Koga ◽  
Ryo Ohtani ◽  
Shinya Hayami ◽  
Masaaki Nakamura
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Title Complex ◽  
Coordination Geometry ◽  
Π Interactions ◽  
Bond Forming ◽  
Tetradentate Schiff Base ◽  
Centroid Distance ◽  
Square Planar ◽  
A Chain

The title complex, [Ni(C20H14ClN3O)], with an asymmetrically chloride-appended Schiff base ligand has been synthesized and structurally characterized at 100 K. In the compound, the central nickel(II) ion has a square-planar coordination geometry with N3O donors of the π-conjugated tetradentate Schiff base ligand. In the crystal, the complexes are connected into an inversion dimerviaan Ni...Ni interaction [3.1753 (5) Å] and a pair of π–π interactions [centroid–centroid distance = 3.8416 (16) Å]. The dimers are linkedviaa C—H...Cl hydrogen bond, forming a chain along thec-axis direction. The dimer chains interact with each other through π–π interactions [centroid–centroid distance = 3.8736 (16) Å], forming a layer expanding parallel to theacplane.

scholarly journals Oxido[2-{(E)-[((1E)-{(E)-2-[1-(2-oxidophenyl)ethylidene]hydrazin-1-ylidene}(prop-2-en-1-ylsulfanyl)methyl)imino]methyl}phenolato]vanadium(IV)

2012 ◽  
Vol 68 (8) ◽  
pp. m1033-m1034
Author(s):  
Reza Takjoo ◽  
Seik Weng Ng ◽  
Edward R. T. Tiekink
Keyword(s):  
Schiff Base ◽  
Dihedral Angle ◽  
Schiff Base Ligand ◽  
Title Complex ◽  
Coordination Geometry ◽  
Tetradentate Ligand ◽  
Π Interactions ◽  
Tetradentate Schiff Base ◽  
Apical Site ◽  
Supramolecular Chains

The VIVatom in the title complex, [V(C19H17N3O2S)O], is coordinated by two N and two O atoms of the dianionic tetradentate Schiff base ligand and the terminal oxide O atom. The N2O3donor set defines a square-pyramidal coordination geometry with the oxide O atom in the apical site. Some buckling in the tetradentate ligand is indicated by the dihedral angle of 17.92 (19)° between the six-membered chelate rings. Supramolecular chains are formed along thebaxisviaC—H...O contacts in the crystal. The chains are connected into a layer in theabplaneviaC—H...π interactions. The atoms comprising the –SCH2—CH=CH2and methyl substituents were found to be disordered in a 0.916 (2):0.088 (2) ratio. The crystal studied was found to be twinned by nonmerohedry with a 28.1 (4)% minor twin component.

scholarly journals {6,6′-Dimethyl-2,2′-bis[(2-oxidobenzylidene)amino]-1,1′-biphenyl-κ4O,N,N′,O′}bis(propan-2-olato-κO)titanium(IV)n-hexane hemisolvate

IUCrData ◽  
2016 ◽  
Vol 1 (9) ◽  
Author(s):  
Liang Chen ◽  
Xuebin Deng
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Title Complex ◽  
Octahedral Coordination ◽  
Coordination Geometry ◽  
Complex Molecules ◽  
Crystal Complex ◽  
Solvent Molecules

The mononuclear TiIVtitle complex, [Ti(C28H22N2O2)(C3H7O)2]·0.5C6H14, crystallizes as ann-hexane hemisolvate. The TiIVatom is coordinated by a dianionic tetradentate biphenyl Schiff base ligand and two O atoms of two propan-2-olate anions in a distorted TiN2O4octahedral coordination geometry, in which the two N atoms are in acisconfiguration. In the crystal, complex molecules are stacked parallel to [100], leaving space for channels parallel to [001] where the solvent molecules are located.

Azido{1-[(2-diethylaminoethylimino)methyl]naphthalato}copper(II)

2006 ◽  
Vol 62 (4) ◽  
pp. m849-m850 ◽  
Author(s):  
Xiao-Yang Qiu
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Title Compound ◽  
Coordination Geometry ◽  
Azide Anion ◽  
Square Planar

The title compound, [Cu(C17H21N2O)(N3)], is a mononuclear copper(II) complex. The central CuII ion is four-coordinated by one O and two N atoms of the Schiff base ligand, and by one N atom of an azide anion, forming a distorted square-planar coordination geometry.

A Cu–Mn complex of a Schiff base containing alanylglycine: hexaaquamanganese(II) bis{[N-(2-oxidobenzylidene)alanylglycinato]cuprate(II)} dodecahydrate

2006 ◽  
Vol 62 (5) ◽  
pp. m1109-m1111
Author(s):  
Wen-Long Liu ◽  
Yao Lu ◽  
Xin-Fang Liu ◽  
Yan-Yan Zhang ◽  
Xiao-Ya Hu
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Title Compound ◽  
Tetradentate Schiff Base ◽  
Square Planar ◽  
Stacking Structure

In the title compound, [Mn(H2O)6][Cu(C12H11N2O4)]2·12H2O, the Cu atom has a square-planar coordination with two N and two O atoms of the tetradentate Schiff base ligand. The centrosymmetric cation [Mn(H2O)6]2+ and anion [CuL]− (L is a Schiff base derived from alanylglycine and salicylaldehyde) occupy a stacking structure within well separated columns along the c axis.

scholarly journals Dichlorido(4-{[(quinolin-2-yl)methylidene]amino}phenol-κ2N,N′)mercury(II)

2014 ◽  
Vol 70 (5) ◽  
pp. m173-m173 ◽  
Author(s):  
Md. Serajul Haque Faizi ◽  
Pratik Sen
Keyword(s):  
Schiff Base ◽  
Chain Structure ◽  
Title Complex ◽  
The Other ◽  
Stacking Interactions ◽  
Coordination Geometry ◽  
Amino Phenol ◽  
A Chain ◽  
Ring Centroid ◽  
Cl Atoms

In the mononuclear title complex, [HgCl2(C16H12N2O)], synthesized from the phenolic Schiff base 4-[(quinolin-2-ylmethylidene)amino]phenol (QMAP), the coordination geometry around Hg2+is distorted tetrahedral, comprising two Cl atoms [Hg—Cl = 2.3565 (12) and 2.5219 (12) Å] and two N-atom donors from the QMAP ligand,viz.one imine and the other quinoline [Hg—N = 2.392 (2) and 2.237 (2) Å, respectively]. In the crystal, O—H...Cl hydrogen bonds generate a chain structure extending along thec-axis direction. Weak C—H...Cl and π–π stacking interactions [minimum ring centroid separation = 3.641 (3) Å] give an overall layered structure lying parallel to (001).

scholarly journals {4,4′-Dichloro-2,2′-[2,2-dimethylpropane-1,3-diylbis(nitrilomethanylylidene)]diphenolato}copper(II)

2012 ◽  
Vol 68 (8) ◽  
pp. m1135-m1135 ◽  
Author(s):  
Hadi Kargar ◽  
Reza Kia ◽  
Fatemeh Ganji ◽  
Valiollah Mirkhani
Keyword(s):  
Schiff Base ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Schiff Base Complex ◽  
Tetradentate Ligand ◽  
Base Complex ◽  
Π Interactions ◽  
Centroid Distance ◽  
Square Planar ◽  
Benzene Rings

In the title Schiff base complex, [Cu(C19H18Cl2N2O2)], the CuIIion is coordinated in a distorted square-planar environment by two N atoms and two O atoms of the tetradentate ligand. The dihedral angle between the benzene rings is 36.86 (14)°. In the crystal, molecules are linked into inversion dimers by pairs of weak C—H...O hydrogen bonds. In addition, π–π [centroid–centroid distance = 3.7279 (16) Å] and weak C—H...π interactions are observed.

catena-Poly[[[(pyrazino[2,3-f][1,10]phenanthroline)copper(II)]-μ-4,4′-oxydibenzoato] monohydrate]

2007 ◽  
Vol 63 (11) ◽  
pp. m2823-m2823
Author(s):  
Chun-Bo Liu ◽  
Yang Liu ◽  
Lu Lu ◽  
Jun Sun
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Supramolecular Structure ◽  
Helical Chain ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Π Interactions ◽  
Centroid Distance ◽  
Square Planar ◽  
Phenanthroline Ligands

In the title compound, {[Cu(C14H8O5)(C14H8N4)]·H2O} n , the CuII atom adopts a distorted cis-CuN2O2 square-planar coordination geometry. 4,4′-Oxydibenzoate (L) ligands link the CuII atoms, generating a helical chain. Neighbouring chains are linked through π–π interactions between pyrazino[2,3-f][1,10]phenanthroline ligands with a centroid–centroid distance of ca 3.44 Å, resulting in a two-dimensional supramolecular structure. The structure is completed by O—H...O hydrogen bonds.

Bis{2-[1-(benzylimino)ethyl]-5-methoxyphenol}dichlorozinc(II)

2006 ◽  
Vol 62 (7) ◽  
pp. m1548-m1549
Author(s):  
Xing-You Xu ◽  
Tong-Tao Xu ◽  
Shuai-Shuai Ni ◽  
Jian Gao ◽  
Da-Qi Wang
Keyword(s):  
Schiff Base ◽  
Hydrogen Bonds ◽  
Schiff Base Ligand ◽  
Title Complex ◽  
Hydroxyl Groups ◽  
Coordination Geometry ◽  
Tetrahedral Coordination ◽  
Intramolecular Hydrogen ◽  
Hydroxy Groups ◽  
Distorted Tetrahedral Coordination

The title complex, [ZnCl2(C16H17NO2)2], displays a distorted tetrahedral coordination geometry around the ZnII ion. The Schiff base inner salt, (benzylimino)ethyl-5-methoxyphenol, coordinates in a monodentate manner to the ZnII ion via the deprotonated hydroxy groups. The protonated imino groups form intramolecular hydrogen bonds with the deprotonated hydroxyl groups of the same Schiff base ligand.

Structure of a copper(II) complex with a non-symmetrical tetradentate Schiff base

1991 ◽  
Vol 56 (4) ◽  
pp. 858-864
Author(s):  
Bohumil Kratochvíl ◽  
Jan Ondráček ◽  
Jiří Novotný ◽  
Václav Haber
Keyword(s):  
Schiff Base ◽  
Hydrogen Bonds ◽  
Phenyl Ring ◽  
Complex Cation ◽  
Title Complex ◽  
Coordination Geometry ◽  
Space Group ◽  
Tetradentate Schiff Base ◽  
Fourier Techniques ◽  
Weak Hydrogen Bonds

The structure of (1-phenyl-3-{2-[(2-aminoethyl)amino]ethylimino}-1-buten-1-olato-O,N, N’,N”)-copper(II) perchlorate, [Cu(baden)]ClO4 was solved by Patterson and Fourier techniques and refined anisotropically to R = 0.066 for 2 205 unique observed reflections. The title complex (C14H20ClCuN3O5) crystallizes in the P21/c space group with the lattice parameters a = 10.435(1), b = 20.745(2), c = 8.457(1) Å, β = 108.56(1)°, Z = 4. The complex cation including the baden ligand contains two five-membered and one six-membered chelate rings, and the phenyl ring. The perchlorate anion is disordered. Two perchlorate oxygen positions, O22A and O33B, each with one half occupation factor value and four N3O donor atoms from the baden ligand complete the coordination geometry about the Cu atom on the square pyramid [Cu-O22A = 2.655(11)Å and Cu-O33B = 2.855(10)Å]. Weak hydrogen bonds among cations and anions were found in the structure.

scholarly journals Crystal structure of di-μ-acetato-diacetatobis(μ-6,6′-dimethoxy-2,2′-{[(propane-1,3-diylbis(azanylylidene)]bis(methanylylidene)}diphenolato)tetrazinc

2015 ◽  
Vol 71 (12) ◽  
pp. m217-m218
Author(s):  
Xue Cai ◽  
Hui Ning
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Schiff Base Ligand ◽  
Title Complex ◽  
The Other ◽  
Van Der Waals Interactions ◽  
Axial Position ◽  
Asymmetric Unit ◽  
Schiff Base Ligands ◽  
A Chain

The tetranuclear title complex, [Zn4(C19H20N2O4)2(CH3COO)4], is formed from two dinuclear motifs related by an inversion centre. The two crystallographically independent ZnIIions in the asymmetric unit are in different coordination environments. One is square-based pyramidal with one O atom of an acetate group occupying the axial position and two N and O atoms of one bmspd [H2bmspd =N,N′-bis(3-methoxysalicylidene)propylene-1,3-diamine] Schiff base ligand forming the basal plane. The other ZnIIatom is six-coordinated by four O atoms of the bmspd ligand forming the equatoral plane and two O atoms of different acetate groups located in the axial positions. As a result, the two phenolic planes of the bicompartmental Schiff base ligand are distorted slightly. However, the planes of the two Schiff base ligands are parallel. In addition, the Zn—N and Zn—O bond lengths span the reasonable ranges 2.062 (2)–2.073 (2) and 1.9261 (15)–2.4356 (16) Å, respectively. The Zn...Zn distances separated by phenolic O atoms are 3.2466 (4) Å while the Zn...Zn distances bridged by acetate groups are 5.9835 (6) Å. The tetranuclear moieties are connected by van der Waals interactions, and form a chain alongcaxis.

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