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.

{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 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.

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.

Platinum(II) complex with 4-nitro-N-(pyridin-2-ylmethylidene)aniline: synthesis, characterization, crystal structure and antioxidant activity

2020 ◽  
Vol 76 (11) ◽  
pp. 1005-1009
Author(s):  
Mehdi Khalaj ◽  
Abolfazl Olyaei ◽  
Mahdieh Sadeghpour ◽  
Arash Lalegani ◽  
Janusz Lipkowski ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Antioxidant Activity ◽  
Schiff Base ◽  
Schiff Base Ligand ◽  
Chain Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Square Planar ◽  
Dpph Method ◽  
Bidentate Schiff Base Ligand

A novel complex has been prepared using the (E)-4-nitro-N-(pyridin-2-ylmethylidene)aniline bidentate Schiff base ligand and PtCl2, namely, dichlorido[(E)-4-nitro-N-(pyridin-2-ylmethylidene)aniline-κ2 N,N′]platinum(II) acetonitrile hemisolvate, [PtCl2(C12H9N3O2)]·0.5CH3CN, 1. According to the X-ray measurements of the crystal structure, the PtII ion adopts a PtCl2N2 square-planar coordination. The coordination of the Schiff base ligand to the PtII ion occurs in a cyclic bidentate fashion, as a result of which a five-membered metallacycle is formed. Furthermore, in the structure of 1, the neutral molecules form a one-dimensional chain structure through C—H...Cl and C—H...O hydrogen bonds. The characterization of the complex was performed via single-crystal X-ray diffraction, IR spectroscopy and elemental analysis, and the antioxidant activity of the complex was evaluated using spectrophotometry by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) method.

Synthesis, Characterization and Crystal Structure of Zn(II) and Cd(II) One- and Two-Dimensional Coordination Polymers Derived from Pyridine Based Schiff Base ligand

2015 ◽  
Vol 25 (4) ◽  
pp. 860-868 ◽  
Author(s):  
Ali Akbar Khandar ◽  
Farhad Akbari Afkhami ◽  
Seyed Abolfazl Hosseini-Yazdi ◽  
Janusz Lipkowski ◽  
William. G. Dougherty ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Coordination Polymers ◽  
Schiff Base Ligand ◽  
Two Dimensional

Azido{4-bromo-2-[(2-diethylaminoethylimino)methyl]phenolato}nickel(II)

2006 ◽  
Vol 62 (4) ◽  
pp. m851-m853 ◽  
Author(s):  
Zhong-Lu You ◽  
Xiao Han ◽  
Jia Wang ◽  
Shu-Yun Niu
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Schiff Base Ligand ◽  
Asymmetric Unit ◽  
Azide Anion ◽  
Square Planar

The title mononuclear nickel(II) complex, [Ni(C13H18BrN2O)N3], contains two molecules in the asymmetric unit. Each NiII atom is four-coordinated by one phenolate O atom, one imine N atom and one amine N atom from a Schiff base ligand, and by one terminal N atom of an azide anion, forming a square-planar coordination. In the crystal structure, adjacent molecules are linked through C—H...N interactions, forming chains along the a axis.

scholarly journals Crystal structure and Hirshfeld surface analysis of (E)-2-(5-bromo-2-hydroxybenzylidene)hydrazinecarbothioamide dimethyl sulfoxide monosolvate

2018 ◽  
Vol 74 (2) ◽  
pp. 119-123 ◽  
Author(s):  
Palaniyappan Sivajeyanthi ◽  
Muthaiah Jeevaraj ◽  
Bellarmin Edison ◽  
Kasthuri Balasubramani
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Solid State ◽  
Hydrogen Bonds ◽  
Dimethyl Sulfoxide ◽  
Hirshfeld Surface ◽  
Two Dimensional ◽  
State Structure ◽  
Acta Cryst ◽  
The Mean

The molecule of the title Schiff base, C8H8BrN3OS·C2H6OS, which crystallizes as a dimethyl sulfoxide (DMSO) monosolvate, displays an E configuration with respect to the C=N bond, with a dihedral angle of 14.54 (11)° between the benzene ring and the mean plane of the N—N—C(N)=S unit. In the crystal, molecules are linked by N—H...O hydrogen bonds, forming chains propagating along the b-axis direction. Within the chains there are R 2 3(11) ring motifs, which are reinforced by C—H...ODMSO hydrogen bonds enclosing secondary R 1 2(6) and R 2 3(9) loops. The chains are linked by O—Hhydroxyl...S hydrogen bonds, forming layers parallel to (011). Inversion-related layers are linked by short Br...Br interactions [3.5585 (5) Å], forming slabs parallel to (011). The intermolecular interactions have been investigated using Hirshfeld surface studies and two-dimensional fingerprint plots. The crystal structure of the unsolvated form of the title compound has been reported previously [Kargar et al. (2010). Acta Cryst. E66, o2999], and its solid-state structure is compared with that of the title solvated form.

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