scholarly journals Chlorido{(E)-1-[(2-methoxyphenyl)diazenyl]naphthalen-2-olato}palladium(II)

IUCrData ◽  
2016 ◽  
Vol 1 (4) ◽  
Author(s):  
Assia Mili ◽  
Souheyla Chetioui ◽  
Djamil-Azzeddine Rouag ◽  
Jean-Pierre Djukic ◽  
Corinne Bailly
Keyword(s):  
Hydrogen Bonds ◽  
Title Complex ◽  
Π Interactions ◽  
Square Planar ◽  
Cl Atom

In the title complex, [Pd(C17H13N2O2)Cl], the PdIIatom is tetracoordinated by an N and two O atoms of an (E)-1-[(2-methoxyphenyl)diazenyl]naphthalen-2-olate ligand and by a Cl atom, and has a square-planar coordination. In the crystal, molecules are linked by pairs of C—H...Cl hydrogen bonds, forming inversion dimers. The dimers are linkedviaoffset π–π interactions [intercentroid distance = 3.546 (3) Å], forming chains running parallel to [100].

scholarly journals Crystal structures of two platinum(II) complexes containing ethyl eugenoxyacetate and 2-aminopyridine

2017 ◽  
Vol 73 (4) ◽  
pp. 573-578 ◽  
Author(s):  
Hai Le Thi Hong ◽  
Thao Nguyen Thu ◽  
Hien Nguyen ◽  
Luc Van Meervelt
Keyword(s):  
Double Bond ◽  
Hydrogen Bonds ◽  
Least Squares ◽  
Phenyl Ring ◽  
Population Parameters ◽  
Aromatic Rings ◽  
Π Interactions ◽  
Square Planar ◽  
Cl Atoms ◽  
Cl Atom

In the title complexes,trans-(2-aminopyridine-κN)dichlorido{4-ethoxycarbonylmethoxy-3-methoxy-1-[(2,3-η)-prop-2-en-1-yl]benzene}platinum(II), [PtCl2(C5H6N2)(C14H18O4)], (I), and (2-aminopyridine-κN)chlorido{5-ethoxycarbonylmethoxy-4-methoxy-1-[(2,3-η)-prop-2-en-1-yl]phenyl-κC1}platinum(II), [Pt(C14H17O4)Cl(C5H6N2)], (II), the central PtIImetal atom displays a distorted square-planar coordination, with the PtIIatom coordinated by the pyridine N atom, the C=C double bond of the eugenol ligand and two Cl atoms for (I) or one Cl atom and a C atom of the phenyl ring for (II). The allyl fragment in (I) is disordered, with population parameters 0.614 (14) and 0.386 (14) for the two positions of the central C atom. The least-squares planes through the two aromatic ring systems make a dihedral angle of 51.10 (13)° for (I) and 78.5 (2)° for (II). Intramolecular N—H...O and N—H...π interactions occur in (I). In (I), inversion dimers formed by C—H...Cl interactions are further linked into chains parallel to thebaxis by C—H...O hydrogen bonds. Both aromatic rings are involved in π–π interactions, with centroid-to-centroid distances of 3.508 (3) and 3.791 (3) Å. In (II), inversion dimers form chains parallel to thebaxis by C—H...O interactions.

scholarly journals Dibromido(di-2-pyridylamine-κ2N2,N2′)platinum(II)

2012 ◽  
Vol 68 (4) ◽  
pp. m453-m453 ◽  
Author(s):  
Kwang Ha
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Complex ◽  
Complex Molecules ◽  
Π Interactions ◽  
Square Planar ◽  
Planar Environment

The PtIIion in the title complex, [PtBr2(C10H9N3)], is four-coordinated in an essentially square-planar environment by two N atoms from a chelating di-2-pyridylamine (dpa) ligand and two Br−anions. The dpa ligand is not planar, with the dihedral angle between the pyridine rings being 40.8 (2)°. The complex molecules are stacked in columns along [001] through π–π interactions between the pyridine rings [centroid–centroid distances = 3.437 (3) and 3.520 (3) Å]. Intermolecular N—H...Br hydrogen bonds connect the molecules into chains running along [010]. Intramolecular C—H...Br interactions are also observed.

scholarly journals (Di-2-pyridylamine-κ2N2,N2′)diiodidoplatinum(II)

2012 ◽  
Vol 68 (4) ◽  
pp. m479-m479 ◽  
Author(s):  
Kwang Ha
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Type Species ◽  
Title Complex ◽  
Complex Molecules ◽  
Π Interactions ◽  
Centroid Distance ◽  
Square Planar ◽  
Ring Centroid ◽  
Planar Environment

The PtIIion in the title complex, [PtI2(C10H9N3)], is four-coordinated in a distorted square-planar environment defined by the two pyridine N atoms of the chelating di-2-pyridylamine (dpa) ligand and by two I−anions. The dpa ligand is not planar, the dihedral angle between the pyridine rings being 52.8 (3)°. Pairs of complex molecules are assembled through intermolecular N—H...I hydrogen bonds, forming a dimer-type species. The complexes are stacked in columns along thebaxis and display several intermolecular π–π interactions between the pyridine rings, with a shortest ring centroid–centroid distance of 3.997 (5) Å.

scholarly journals Crystal structure of bis(azido-κN)bis[2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole-κ2N2,N3]cobalt(II)

2015 ◽  
Vol 71 (5) ◽  
pp. 452-454 ◽  
Author(s):  
Abdelhakim Laachir ◽  
Fouad Bentiss ◽  
Salaheddine Guesmi ◽  
Mohamed Saadi ◽  
Lahcen El Ammari
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Title Complex ◽  
Octahedral Coordination ◽  
Maximum Deviation ◽  
Coordination Geometry ◽  
Acta Cryst ◽  
Π Interactions ◽  
The Mean

In the mononuclear title complex, [Co(N3)2(C12H8N4S)2], the cobalt(II) atom is located on an inversion centre and displays an axially weakly compressed octahedral coordination geometry. The equatorial positions are occupied by the N atoms of two 2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole ligands, whereas the axial positions are occupied by N atoms of the azide anions. The thiadiazole and pyridine rings linked to the metal are almost coplanar, with a maximum deviation from the mean plane of 0.0273 (16) Å. The cohesion of the crystal is ensured by weak C—H...N hydrogen bonds and by π–π interactions between pyridine rings [intercentroid distance = 3.6356 (11) Å], forming a layered arrangement parallel to (001). The structure of the title compound is isotypic with that of the analogous nickel(II) complex [Laachiret al.(2013).Acta Cryst.E69, m351–m352].

scholarly journals (2,3-Di-2-pyridylpyrazine-κ2 N 2,N 3)diiodidoplatinum(II)

2012 ◽  
Vol 68 (6) ◽  
pp. m834-m834 ◽  
Author(s):  
Kwang Ha
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Least Squares ◽  
Dihedral Angle ◽  
Layer Structure ◽  
Title Complex ◽  
Maximum Deviation ◽  
Hydrogen Bond Acceptor ◽  
Pyrazine Ring ◽  
Square Planar

The PtII ion in the title complex, [PtI2(C14H10N4)], exists in a distorted square-planar environment defined by the two pyridine N atoms of the chelating 2,3-di-2-pyridylpyrazine ligand and two iodide anions. The pyridine rings are inclined to the least-squares plane of the PtI2N2 unit [maximum deviation = 0.070 (3) Å] at 66.1 (2) and 65.9 (2)°; the pyrazine ring is perpendicular to this plane [dihedral angle = 89.7 (2)°]. Two intermolecular C—H...I hydrogen bonds, both involving the same I atom as hydrogen-bond acceptor, generate a layer structure extending parallel to (001). Molecules are stacked in columns along the a axis. Along the b axis, successive molecules stack in opposite directions.

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 Redetermination of (2,2′-bipyridine-κ2N,N′)dichloridopalladium(II) dichloromethane solvate

2009 ◽  
Vol 65 (6) ◽  
pp. m615-m616 ◽  
Author(s):  
Nam-Ho Kim ◽  
In-Chul Hwang ◽  
Kwang Ha
Keyword(s):  
Hydrogen Bonds ◽  
Structure Refinement ◽  
Chloride Ions ◽  
Fourier Synthesis ◽  
Complex Molecules ◽  
Bipy Ligand ◽  
Π Interactions ◽  
Centroid Distance ◽  
Square Planar ◽  
Difference Fourier

In the title compound, [PdCl2(C10H8N2)]·CH2Cl2, the Pd2+ion is four-coordinated in a slightly distorted square-planar environment by two N atoms of the 2,2′-bipyridine (bipy) ligand and two chloride ions. The compound displays intramolecular C—H...Cl hydrogen bonds and pairs of complex molecules are connected by intermolecular C—H...Cl hydrogen bonds. Intermolecular π–π interactions are present between the pyridine rings of the ligand, the shortest centroid–centroid distance being 4.096 (3) Å. As a result of the electronic nature of the chelate ring, it is possible to create π–π interactions to its symmetry-related counterpart [3.720 (2) Å] and also with a pyridine ring [3.570 (3) Å] of the bipy unit. The present structure is a redetermination of a previous structure [Vicenteet al.(1997). Private communication (refcode PYCXMN02). CCDC, Cambridge, England]. In the new structure refinement all H atoms were located in a difference Fourier synthesis. Their coordinates were refined freely, together with isotropic displacement parameters.

scholarly journals (2,2′-Bipyridine-κ2N,N′)dichloridopalladium(II) 1,4-dioxane hemisolvate

2014 ◽  
Vol 70 (6) ◽  
pp. m218-m218 ◽  
Author(s):  
Ricardo Alfredo Gutiérrez Márquez ◽  
Carmela Crisóstomo-Lucas ◽  
David Morales-Morales ◽  
Simón Hernández-Ortega
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Complex Molecule ◽  
Inversion Symmetry ◽  
Asymmetric Unit ◽  
Π Interactions ◽  
Centroid Distance ◽  
Square Planar ◽  
Chloride Ligands ◽  
Bipyridine Ligand

The asymmetric unit of the title compound, [PdCl2(C10H8N2)]·0.5C4H8O2, consists of one PdIIcomplex molecule and a half-molecule of 1,4-dioxane, the complete molecule being generated by inversion symmetry. The PdIIatom has an almost square-planar coordination formed by the 2,2′-bipyridine ligand and two chloride ligands. Two intramolecular C—H...Cl hydrogen bonds occur. In the crystal, the PdIIcomplex and 1,4-dioxane molecules are connected by C—H...O hydrogen bonds, forming a layer parallel to (10-1). Within the layer, weak π–π interactions [centroid–centroid distance = 3.817 (4) Å] are observed between the pyridine rings.

scholarly journals Dichlorido[2-(phenyliminomethyl)quinoline-N,N′]palladium(II)

2012 ◽  
Vol 68 (4) ◽  
pp. m380-m380 ◽  
Author(s):  
William M. Motswainyana ◽  
Martin O. Onani ◽  
Abram M. Madiehe
Keyword(s):  
Bidentate Ligand ◽  
Title Complex ◽  
Planar Geometry ◽  
Π Interactions ◽  
Square Planar ◽  
Centrosymmetric Dimers

In the title complex, [PdCl2(C16H12N2)], the PdIIion is coordinated by two N atoms [Pd—N 2.039 (2), 2.073 (2) Å] from a bidentate ligand and two chloride anions [Pd—Cl 2.2655 (7), 2.2991 (7) Å] in a distorted square-planar geometry. In the crystal, π–π interactions between the six-membered rings of the quinoline fragments [centroid–centroid distances = 3.815 (5), 3.824 (5) Å] link two molecules into centrosymmetric dimers.

Chlorobis[N′-ethoxycarbonyl-N-(4-methylphenyl)thiourea-κS]copper(I)

2003 ◽  
Vol 59 (11) ◽  
pp. m473-m474 ◽  
Author(s):  
You-Ming Zhang ◽  
Liang Xian ◽  
Tai-Bao Wei
Keyword(s):  
Hydrogen Bonds ◽  
Cupric Chloride ◽  
Title Complex ◽  
Thiourea Derivative ◽  
Coordination Environment ◽  
Intramolecular Hydrogen Bonds ◽  
The Stability ◽  
Intramolecular Hydrogen ◽  
Cl Atom

The title complex, chlorobis{ethyl N-[(4-methylanilino)thiocarbonyl]carbamate-κS}copper(I), [CuCl(C11H14N2O2S)2], was synthesized by the reaction of cupric chloride with the corresponding thiourea derivative. The complex has imposed crystallographic m symmetry and the CuI coordination environment is trigonal planar, formed by two S atoms and one Cl atom. The formation of intramolecular hydrogen bonds promotes the stability of the complex.

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