scholarly journals Dichlorido(ethanol-κO)[2-(1,3-thiazol-4-yl-κN)-1H-benzimidazole-κN3]copper(II)

2012 ◽  
Vol 68 (4) ◽  
pp. m508-m508
Author(s):  
Long Li ◽  
Kai-Sheng Diao ◽  
Yu-Qiu Ding ◽  
Jin-Niu Tang ◽  
Dai-Yin Wang
Keyword(s):  
Hydrogen Bonds ◽  
Title Complex ◽  
Complex Molecules ◽  
Ethanol Molecule ◽  
Π Interactions ◽  
Pyramidal Geometry ◽  
Centroid Distance ◽  
Square Pyramidal Geometry ◽  
Cl Atoms

In the title complex, [CuCl2(C10H7N3S)(C2H5OH)], the CuIIion is five-coordinated in a distorted square-pyramidal geometry by two N atoms from a 2-(1,3-thiazol-4-yl)-1H-benzimidazole ligand, one O atom from an ethanol molecule and two Cl atoms. In the crystal, O—H...Cl and N—H...Cl hydrogen bonds link the complex molecules into a layer parallel to (100). π–π interactions between the thiazole rings are observed [centroid–centroid distance = 3.749 (3) Å].

scholarly journals Crystal structure of bis[(phenylmethanamine-κN)(phthalocyaninato-κ4N)zinc] phenylmethanamine trisolvate

2015 ◽  
Vol 71 (9) ◽  
pp. 1026-1031 ◽  
Author(s):  
Norzianah Shamsudin ◽  
Ai Ling Tan ◽  
Franz L. Wimmer ◽  
David J. Young ◽  
Edward R. T. Tiekink
Keyword(s):  
Complex Molecule ◽  
Three Dimensional ◽  
Complex Molecules ◽  
Torsion Angles ◽  
Π Interactions ◽  
Pyramidal Geometry ◽  
Centroid Distance ◽  
Benzene Rings ◽  
Solvent Molecules ◽  
Square Pyramidal Geometry

The asymmetric unit of the title compound, 2[Zn(C32H16N8)(C7H9N)]·3C7H9N, comprises two independent complex molecules and three benzylamine solvent molecules. Each complex molecule features a pentacoordinated Zn2+ion within a square-pyramidal geometry, whereby the N5donor set is defined by four atoms of the phthalocyaninate dianion (PC) and an N-bound benzylamine molecule; it is the relative orientations of the latter that differentiate between the independent complex molecules. The uncoordinated benzylamine molecules display different conformations in the structure, withsyn-Car—Car—Cm—N (ar = aromatic, m = methylene) torsion angles spanning the range −28.7 (10) to 35.1 (14)°. In the crystal, N—H...N and N—H...π interactions lead to supramolecular layers in theabplane. The layers have a zigzag topology, have the coordinating and non-coordinating benzylamine molecules directed to the inside, and present the essentially flat PC resides to the outside. This arrangement enables adjacent layers to associateviaπ–π interactions [inter-centroid distance between pyrrolyl and fused-benzene rings = 3.593 (2) Å] so that a three-dimensional architecture is formed.

scholarly journals cyclo-Tetrakis{μ-N′-[(8-oxidoquinolin-7-yl)methylidene]isonicotinohydrazidato}tetrazinc tetrahydrate

2012 ◽  
Vol 68 (6) ◽  
pp. m727-m728
Author(s):  
Xiang-Wen Wu ◽  
Qing-Long Li ◽  
Jian-Ping Ma ◽  
Yu-Bin Dong
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Water Molecules ◽  
Deprotonated Form ◽  
Complex Molecules ◽  
Lattice Water ◽  
Pyramidal Geometry ◽  
Centroid Distance ◽  
A Chain ◽  
Square Pyramidal Geometry

In the title compound, [Zn4(C16H10N4O2)4]·4H2O, the N′-[(8-oxidoquinolin-7-yl)methylidene]isonicotinohydrazidate (L 2−) ligand binds to the metal ions, forming stable five- and six-membered chelate rings, leaving the pyridyl groups free. The compound is a tetranuclear ZnII complex centered about a fourfold roto-inversion axis, with the ligand coordinating in the doubly deprotonated form. The ZnII atom has a distorted square-pyramidal geometry being coordinated by one N and two O-atom donors from the doubly deprotonated L 2− ligand, and by one N atom and one O-atom donor from a symmetry-related L 2− ligand. In the crystal, four symmetry-related lattice water molecules, centred about a fourfold roto-inversion axis, form a cyclic tetramer through O—H...O hydrogen bonds. These tetramers connect to the complex molecules through O—H...N hydrogen bonds, forming a chain propagating along [100]. Neighbouring molecules are linked by π–π interactions [centroid–centroid distance = 3.660 (2) Å] involving the quinolidine rings.

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 {(but-3-en-1-yl)bis[(pyridin-2-yl)methyl]amine-κ3N,N′,N′′}dichloridocopper(II) diethyl ether hemisolvate

2015 ◽  
Vol 71 (3) ◽  
pp. 309-311
Author(s):  
Katherine A. Bussey ◽  
Jennifer R. Connell ◽  
Annie R. McGlone ◽  
Margaret E. Mraz ◽  
Kayode D. Oshin ◽  
...  
Keyword(s):  
Rotation Axis ◽  
Solvent Molecule ◽  
Radical Addition ◽  
Title Complex ◽  
Complex Molecules ◽  
Methyl Amine ◽  
Pyramidal Geometry ◽  
Atom Transfer Radical Addition ◽  
Square Pyramidal Geometry ◽  
Cl Atoms

The five-coordinate CuIIatom in the title complex [CuCl2(C16H19N3)]·0.5C4H10O, adopts a near-ideal square-pyramidal geometry (τ-5 = 0.01). The apical Cu—Cl distance is 0.2626 (6) Å longer than the basal Cu—Cl distance. Weak C—H...Cl interactions between pyridine rings and the Cl atoms of adjacent complex molecules are present. The solvent molecule, located on a twofold rotation axis, is situated in the voids of this arrangement. Copper atoms coordinated by tridentate nitrogen-containing ligands have been found to be excellent promoters of Atom Transfer Radical Addition (ATRA) reactions.

scholarly journals Crystal structure and Hirshfeld surface analysis of dichlorido(methanol-κO)bis(2-methylpyridine-κN)copper(II)

2020 ◽  
Vol 76 (11) ◽  
pp. 1771-1774
Author(s):  
J. Prakasha Reddy
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Oxygen Atom ◽  
Rotation Axis ◽  
Hirshfeld Surface ◽  
Title Complex ◽  
Complex Molecules ◽  
Crystal Complex ◽  
Tetragonal Pyramidal ◽  
Cl Atoms

In the title complex, [CuCl2(C6H7N)2(CH3OH)], the copper atom is five-coordinated by two nitrogen atoms of 2-methylpyridine ligands, two chloro ligands and an oxygen atom of the methanol molecule, being in a tetragonal–pyramidal environment with N and Cl atoms forming the basal plane. In the crystal, complex molecules related by the twofold rotation axis are joined into dimeric units by pairs of O—H...Cl hydrogen bonds. These dimeric units are assembled through C—H...Cl interactions into layers parallel to (001).

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.

[Bis(2-pyridylmethyl)amine]dichloridozinc(II) chloroform solvate

2007 ◽  
Vol 63 (11) ◽  
pp. m2810-m2811 ◽  
Author(s):  
Young-Inn Kim ◽  
You-Soon Lee ◽  
Hoe-Joo Seo ◽  
Jin-Young Lee ◽  
Sung Kwon Kang
Keyword(s):  
Hydrogen Bonding ◽  
Title Complex ◽  
Pyramidal Geometry ◽  
Hydrogen Bonding Interactions ◽  
Square Pyramidal Geometry ◽  
Cl Atoms ◽  
Centrosymmetric Dimers

The Zn atom in the title complex, [ZnCl2(C12H13N3)]·CHCl3, adopts a distorted square-pyramidal geometry, being coordinated by three N atoms of the tridentate dipicolylamine ligand and two Cl atoms. Intermolecular N—H...Cl hydrogen-bonding interactions link the molecules into centrosymmetric dimers.

scholarly journals Crystal structure of (4-cyanopyridine-κN){5,10,15,20-tetrakis[4-(benzoyloxy)phenyl]porphyrinato-κ4N}zinc–4-cyanopyridine (1/1)

2016 ◽  
Vol 72 (2) ◽  
pp. 164-169 ◽  
Author(s):  
Soumaya Nasri ◽  
Nesrine Amiri ◽  
Ilona Turowska-Tyrk ◽  
Jean-Claude Daran ◽  
Habib Nasri
Keyword(s):  
Crystal Structure ◽  
Bond Length ◽  
Title Compound ◽  
Axial Ligand ◽  
Complex Molecules ◽  
Zinc Cation ◽  
Π Interactions ◽  
Pyramidal Geometry ◽  
Π Stacking ◽  
Square Pyramidal Geometry

In the title compound, [Zn(C72H44N4O8)(C6H4N2)]·C6H4N2or [Zn(TPBP)(4-CNpy]·(4-CNpy) [where TPBP and 4-CNpy are 5,10,15,20-(tetraphenylbenzoate)porphyrinate and 4-cyanopyridine, respectively], the ZnIIcation is chelated by four pyrrole-N atoms of the porphyrinate anion and coordinated by a pyridyl-N atom of the 4-CNpy axial ligand in a distorted square-pyramidal geometry. The average Zn—N(pyrrole) bond length is 2.060 (6) Å and the Zn—N(4-CNpy) bond length is 2.159 (2) Å. The zinc cation is displaced by 0.319 (1) Å from the N4C20mean plane of the porphyrinate anion toward the 4-cyanopyridine axial ligand. This porphyrinate macrocycle exhibits major saddle and moderate ruffling and doming deformations. In the crystal, the [Zn(TPBP)(4-CNpy)] complex molecules are linked togetherviaweak C—H...N, C—H...O and C—H...π interactions, forming supramolecular channels parallel to thecaxis. The non-coordinating 4-cyanopyridine molecules are located in the channels and linked with the complex molecules,viaweak C—H...N interactions and π-π stacking orviaweak C—H...O and C—H...π interactions. The non-coordinating 4-cyanopyridine molecule is disordered over two positions with an occupancy ratio of 0.666 (4):0.334 (4).

scholarly journals Crystal structure of (pyridine-κN)bis(quinolin-2-olato-κ2N,O)copper(II) monohydrate

2015 ◽  
Vol 71 (2) ◽  
pp. m38-m39
Author(s):  
Benjamin Hawks ◽  
Jingjing Yan ◽  
Prem Basa ◽  
Shawn Burdette
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Crystal Lattice ◽  
Copper Complexes ◽  
Title Complex ◽  
Dihedral Angles ◽  
Pyridine Ligand ◽  
Pyramidal Geometry ◽  
Square Pyramidal Geometry

The title complex, [Cu(C9H6NO)2(C5H4N)]·H2O, adopts a slightly distorted square-pyramidal geometry in which the axial pyridine ligand exhibits a long Cu—N bond of 2.305 (3) Å. The pyridine ligand forms dihedral angles of 79.5 (5) and 88.0 (1)° with the planes of the two quinolin-2-olate ligands, while the dihedral angle between the quinoline groups of 9.0 (3)° indicates near planarity. The water molecule connects adjacent copper complexes through O—H...O hydrogen bonds to phenolate O atoms, forming a network interconnecting all the complexes in the crystal lattice.

scholarly journals Crystal structure of bis{μ-1-[(E)-(3-methoxyphenyl)diazenyl]naphthalen-2-olato-κ3N2,O:O}bis({1-[(E)-(3-methoxyphenyl)diazenyl]naphthalen-2-olato-κ2N2,O}copper(II))

2015 ◽  
Vol 71 (12) ◽  
pp. m211-m212 ◽  
Author(s):  
Souheyla Chetioui ◽  
Noudjoud Hamdouni ◽  
Christian G. Bochet ◽  
Jean-Pierre Djukic ◽  
Corinne Bailly
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dinuclear Complex ◽  
Bidentate Ligands ◽  
Complex Molecules ◽  
Pyramidal Geometry ◽  
Crystal Complex ◽  
Square Pyramidal Geometry

The title dinuclear CuIIcomplex, [Cu2(C17H13N2O2)4], is located on an inversion centre. The CuIIatoms are each five-coordinated in a distorted square-pyramidal geometry by two N atoms and two O atoms from two bidentate ligands and one bridging O atom from another ligand. In the dinuclear complex, the Cu...Cu separation is 3.366 (3) Å. In the crystal, complex molecules are linkedviaweak C—H...O hydrogen bonds, forming a layer parallel to (-101).

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