{2,2′-[o-Phenylenebis(nitrilomethylidyne)]diphenolato}manganese(II)

2007 ◽  
Vol 63 (11) ◽  
pp. m2854-m2854 ◽  
Author(s):  
Yin-Qiu Liu ◽  
Xi-Rui Zeng ◽  
Qiu-Yan Luo ◽  
Ya-Ping Xu
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Schiff Base Ligand ◽  
Title Complex ◽  
Planar Geometry ◽  
Square Planar

The title complex, [Mn(C20H14N2O2)], is a mononuclear manganese(II) compound. The manganese(II) ion is four-coordinated in a square-planar geometry by two imine N and two phenolate O atoms from one 2,2′-[o-phenylenebis(nitrilomethylidyne)]diphenolate Schiff base ligand. No strong hydrogen bonds were found in the crystal structure.

scholarly journals Crystal structure of bis(2-{1-[(E)-(4-fluorobenzyl)imino]ethyl}phenolato-κ2N,O)palladium(II)

2015 ◽  
Vol 71 (4) ◽  
pp. 350-353
Author(s):  
Amalina Mohd Tajuddin ◽  
Hadariah Bahron ◽  
Hamizah Mohd Zaki ◽  
Karimah Kassim ◽  
Suchada Chantrapromma
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Complex ◽  
Asymmetric Unit ◽  
Schiff Base Ligands ◽  
Bond Lengths ◽  
Square Planar ◽  
Coordination Plane

The asymmetric unit of the title complex, [Pd(C15H13FNO)2], contains one half of the molecule with the PdIIcation lying on an inversion centre and is coordinated by the bidentate Schiff base anion. The geometry around the cationic PdIIcentre is distorted square planar, chelated by the imine N- and phenolate O-donor atoms of the two Schiff base ligands. The N- and O-donor atoms of the two ligands are mutuallytrans, with Pd—N and Pd—O bond lengths of 2.028 (2) and 1.9770 (18) Å, respectively. The fluorophenyl ring is tilted away from the coordination plane and makes a dihedral angle of 66.2 (2)° with the phenolate ring. In the crystal, molecules are linked into chains along the [101] direction by weak C—H...O hydrogen bonds. Weak π–π interactions with centroid–centroid distances of 4.079 (2) Å stack the molecules alongc.

scholarly journals Bis(4-aminophenylhydroxamato-κ2 O,O′)copper(II) methanol disolvate

IUCrData ◽  
2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Yansi Zhao ◽  
Yanmei Chen
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Title Complex ◽  
Planar Geometry ◽  
Asymmetric Unit ◽  
Bidentate Ligands ◽  
Metal Centre ◽  
Square Planar ◽  
Solvent Molecules

In the title complex, [Cu(C7H7N2O2)2]·2CH3OH, the metal centre is coordinated by two 4-aminophenylhydroxamate bidentate ligands, in a distorted square-planar geometry. The asymmetric unit is completed by two methanol solvent molecules, which are involved in hydrogen bonding with N—H functionalities of the free hydroxamate groups. The crystal structure also features N—H...O bonds formed by the NH2 groups, and O—H...O hydrogen bonds with the methanol solvent molecules as donors.

scholarly journals Synthesis and characterization of mixed nickel thiosemicarbazone complexes

2014 ◽  
Vol 8 (3) ◽  
Author(s):  
Hana Bashir Shawish ◽  
Mohd Jamil Maah ◽  
Siti Nadia Abdul Halim
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Ir Spectroscopy ◽  
Schiff Base Ligand ◽  
Synthesis And Characterization ◽  
Planar Geometry ◽  
Mixed Ligands ◽  
Square Planar ◽  
Thiosemicarbazone Complexes

Three nickel thiosemicarbazone mixed ligands complexes have been synthesized. Complexes with the formula [NiL(PPh3)]Cl, [Ni2L2(Phen)],[Ni2L2(Bpy)] (where L= 2,3,4-trihydroxybenzaldehydethiosemicarbazone, PPh3=Triphenylphosphine, Phen=1,10-phenanthroline, Bpy= 2,2 –Bipyridine)have been characterized by IR spectroscopy, as well as elemental analysis. The structure of [NiL (PPh3)]Cl has been determined by X-raycrystallography. The crystal structure of this complex shows that the Schiff base ligand functions as an N,O,S chelating anion to the phosphine –coordinated nickel(II) atom, which exists as a distorted square – planar geometry.

scholarly journals Crystal structure of bis{2-[(E)-(4-fluorobenzyl)iminomethyl]phenolato-κ2N,O}nickel(II)

2014 ◽  
Vol 70 (10) ◽  
pp. 252-255 ◽  
Author(s):  
Amalina Mohd Tajuddin ◽  
Hadariah Bahron ◽  
Rohazila Mohammad Hanafiah ◽  
Nazlina Ibrahim ◽  
Hoong-Kun Fun ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Complex ◽  
Asymmetric Unit ◽  
Schiff Base Ligands ◽  
Coordination Environment ◽  
Square Planar ◽  
Coordination Plane

The asymmetric unit of the title complex, [Ni(C14H11FNO)2], contains one-half of the molecule with the NiIIcation lying on an inversion centre coordinated by a bidentate Schiff base anion. The cationic NiIIcenter is in a distorted square-planar coordination environment chelated by the imine N and phenolate O donor atoms of the two Schiff base ligands. The N and O donor atoms of the two ligands are mutuallytranswith Ni—N and Ni—O bond lengths of 1.9242 (10) and 1.8336 (9) Å, respectively. The fluorophenyl ring is almost orthogonal to the coordination plane and makes a dihedral angle of 82.98 (7)° with the phenolate ring. In the crystal, molecules are linked into screw chains by weak C—H...F hydrogen bonds. Additional C—H...π contacts arrange the molecules into sheets parallel to theacplane.

scholarly journals Crystal structure of {6,6′-dibenzoyl-4,4′-di-tert-butyl-2,2′-[(ethane-1,2-diyl)dinitrilobis(phenylmethanylylidene)]diphenolato-κ4O1,N,N′,O1′}nickel(II)

2015 ◽  
Vol 71 (12) ◽  
pp. 1485-1487
Author(s):  
Abhishek K. Gupta ◽  
Ray J. Butcher ◽  
Anjan Sil
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Title Complex ◽  
Dihedral Angles ◽  
Planar Geometry ◽  
Asymmetric Unit ◽  
Triclinic Space Group ◽  
Tetradentate Schiff Base ◽  
Square Planar ◽  
Phenyl Rings

The mononuclear title complex, [Ni(C50H46N2O4)], crystallizes in the triclinic space groupP-1, with two molecules in the asymmetric unit (Z′ = 2). Each NiIIatom has a slightly distorted square-planar geometry [ω = 3.91 (5)° and 2.04 (7)°] defined by the two phenolate O and two imine N atoms of the tetradentate Schiff base ligand. The dihedral angles between the central phenolate ring and peripheral phenyl rings are 60.5 (2)/70.0 (2) and 86.4 (2)/56.1 (2)° in moleculeA, and 89.43 (19)/18.0 (2) and 63.87 (19)/68.2 (2)° in moleculeB. The two central phenolate rings are twisted by angles of 19.37 (19) and 19.36 (18)° in the two molecules. The packing is stabilized through intra- and intermolecular C—H...O and C—H...π interactions, forming chains parallel to thebaxis. Thetert-butyl groups in one of the two molecules are positionally disordered with a refined occupancy ratio of 0.707 (13):0.293 (13).

scholarly journals Crystal structure of {2-[({2-[(2-aminoethyl)amino]ethyl}imino)methyl]phenolato}aquacopper(II) bromide

2014 ◽  
Vol 70 (9) ◽  
pp. m330-m331 ◽  
Author(s):  
Nataliya I. Plyuta ◽  
Julia A. Rusanova ◽  
Svitlana R. Petrusenko ◽  
Irina V. Omelchenko
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Schiff Base Ligand ◽  
Equatorial Plane ◽  
Title Complex ◽  
Imine Nitrogen ◽  
Bromide Ion ◽  
The Mean

In the mononuclear copper(II) title complex, [Cu(C11H16N3O)(H2O)]Br, the CuIIatom is coordinated by one O and three N atoms of the Schiff base ligand that forms together with one water molecule a slightly distorted [CuN3O2] square-pyramidal polyhedron. The deviation of the CuIIatom from the mean equatorial plane is 0.182 (2) Å. The equatorial plane is nearly coplanar to the aromatic ring of the ligand [angle between planes = 10.4 (1)°], and the water molecule is situated in the apical site. All coordinating atoms (except the imine nitrogen) and the bromide ion contribute to the formation of the N—H...Br, O—H...Br and O—H...O hydrogen bonds, which link molecules into chains along [01-1].

scholarly journals Crystal structure and Hirshfeld surfaces analysis of the nickel(II) complex of the Shiff base ligand 6,6′-{(1E,1′E)-[ethane-1,2-diylbis(azanylylidene)]bis(methanylylidene)}bis[2-(trifluoromethoxy)phenol]

2019 ◽  
Vol 75 (3) ◽  
pp. 328-331
Author(s):  
Sibel Demir Kanmazalp ◽  
Seher Meral ◽  
Necmi Dege ◽  
Aysen Alaman Agar ◽  
Igor O. Fritsky
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Schiff Base Ligand ◽  
Hirshfeld Surface ◽  
Title Complex ◽  
Two Dimensional ◽  
Hirshfeld Surfaces ◽  
Square Planar ◽  
Shiff Base ◽  
Hirshfeld Surfaces Analysis

In the title complex, (6,6′-{(1E,1′E)-[ethane-1,2-diylbis(azanylylidene)]bis(methanylylidene)}bis[2-(trifluoromethoxy)phenol]-κ4 O,N,N′,O′)nickel(II), [Ni(C18H12F6N2O4)], the nickel(II) ion has a square-planar coordination sphere, being ligated by two N and two O atoms of the Schiff base ligand 6,6′-{(1E,1′E)-[ethane-1,2-diylbis(azanylylidene)]bis(methanylylidene)}bis[2-(trifluoromethoxy)phenol] (L). Inversion-related molecules are linked by a short Ni...Ni interaction of 3.2945 (6) Å forming a dimer. In the crystal, the dimers stack up the a axis, with a closest Ni...Ni separation of ca 3.791 Å. There are no other significant intermolecular interactions present. However, the Hirshfeld surface analysis and the two-dimensional fingerprint plots indicate that the packing is dominated by H...F/F...H, H...H, O...H/H...O and C...H/H...C contacts.

{1-[2-(Methylamino)ethyliminomethyl]naphthalen-2-olato}thiocyanatocopper(II)

2006 ◽  
Vol 62 (7) ◽  
pp. m1533-m1534 ◽  
Author(s):  
Han-Na Hou
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Title Compound ◽  
Planar Geometry ◽  
Asymmetric Unit ◽  
Thiocyanate Anion ◽  
Square Planar

The title compound, [Cu(C14H15N2O)(NCS)], is a mononuclear copper(II) complex, with two molecules in the asymmetric unit. The CuII ion is coordinated by one O and two N atoms of a Schiff base ligand, and by one N atom of a thiocyanate anion, forming a square-planar geometry.

scholarly journals trans-Dichloridobis(4-methoxyaniline-κN)palladium(II)

2009 ◽  
Vol 65 (6) ◽  
pp. m673-m673 ◽  
Author(s):  
Volodimir Bon ◽  
Svitlana Orysyk ◽  
Vasyl Pekhnyo
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Planar Geometry ◽  
Coordination Environment ◽  
Square Planar ◽  
A Chain

In the title compound, [PdCl2(C7H9NO)2], the Pd atom is situated on a crystallographic centre of inversion. The coordination environment of the Pd atom shows a slightly distorted square-planar geometry. The crystal structure exhibits weak intermolecular Pd...Cl interactions, with Pd...Cl distances of 3.6912 (6) Å. A chain-like arrangement of molecules realized by intermolecular N—H...Cl hydrogen bonds is observed along [010].

scholarly journals Synthesis, Characterization, and Crystal Structure of [Co4(CH3CO2)2L4]2[BPh4]4·0.5H2O, Where HL = 4-(Salicylaldiminato)antipyrine

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Ramadan M. El-mehdawi ◽  
Abdussalam N. EL-dewik ◽  
Mufida M. Ben-Younes ◽  
Fathia A. Treish ◽  
Ramadan G. Abuhmaiera ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Single Crystal ◽  
Elemental Analysis ◽  
Schiff Base Ligand ◽  
Title Complex ◽  
Single Crystal Diffraction ◽  
X Ray ◽  
Tridentate Schiff Base

The title complex was isolated as a red solid from the reaction of 4-(salicylaldiminato)antipyrine, HL, and cobalt (II) acetate in ethanol. The complex has been characterized by elemental analysis, FTIR, UV-Vis, and X-ray single crystal diffraction. Two crystallographically different cationic units, A and B, of the title complex are found. Both units are essentially isostructural; nevertheless, small differences exist between them. Both units contain four cobalt atoms arranged at the corners of distorted cubane-like core alternatively with phenoxy oxygen of the Schiff base. In both cases, one cobalt binds to three coordinated sites from the corresponding tridentate Schiff base ligand, and the fourth one was bonded by the acetate oxygen, and the fifth and the sixth donor sites come from the phenolate oxygen of another Schiff base ligand.

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