scholarly journals Crystal structure of di-μ-iodido-bis[bis(acetonitrile-κN)copper(I)]

2015 ◽  
Vol 71 (11) ◽  
pp. m189-m190
Author(s):  
Eva Rebecca Barth ◽  
Christopher Golz ◽  
Michael Knorr ◽  
Carsten Strohmann
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Crystal Packing ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Tetrahedral Coordination ◽  
Coordination Environment ◽  
Hydrogen Bonding Interactions ◽  
Distorted Tetrahedral Coordination

The title compound, [Cu2I2(CH3CN)4], exhibits a centrosymmetric Cu2I2core [Cu...Cu distance = 2.7482 (11) Å], the CuIatoms of which are further coordinated by four molecules of acetonitrile. The CuIatom has an overall distorted tetrahedral coordination environment evidenced byL—Cu—Langles (L= N or I) ranging from 100.47 (10) to 117.06 (2)°. The coordination geometries of the acetonitrile ligands deviate slightly from linearity as shown by Cu—N—C angles of 167.0 (2) and 172.7 (2)°. In the crystal, there are no significant hydrogen-bonding interactions present, so the crystal packing seems to be formed predominantly by van der Waals forces.

2-Diethylamino-6-ethyl-6-methyl-3-phenylthieno[2,3-d]pyrimidin-4(3H)-one

2006 ◽  
Vol 62 (7) ◽  
pp. o2862-o2863
Author(s):  
Zheng-Dong Fang ◽  
Ming-Wu Ding
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Stacking Interactions ◽  
Intermolecular Hydrogen Bonding ◽  
Compound C ◽  
Hydrogen Bonding Interactions ◽  
Π Stacking

In the title compound, C19H23N3OS, the two fused rings of the thieno[2,3-d]pyrimidin-4(3H)-one system are almost coplanar. The packing of the molecules in the crystal structure is determined by van der Waals forces. No intermolecular hydrogen-bonding interactions or π–π stacking interactions are present in the crystal structure.

scholarly journals Crystal structure of di-μ-hydroxido-bis{[N,N′-bis(2,6-dimethylphenyl)pentane-2,4-diiminato(1–)]zinc}

2014 ◽  
Vol 70 (9) ◽  
pp. m320-m321
Author(s):  
Joshua A. Goodner ◽  
Brandon J. Powers ◽  
Douglas R. Powell ◽  
Lei Yang
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Zinc Complex ◽  
Tetrahedral Coordination ◽  
Coordination Environment ◽  
Bond Lengths ◽  
Dimeric Unit ◽  
Distorted Tetrahedral Coordination

The title compound, [Zn2(C21H25N2)2(OH)2], is a binuclear zinc complex formed by two bidentate β-diketiminate (nacnac) ligands and two μ-hydroxide O atoms, bridging two mononuclear units into a centrosymmetric dimeric unit. Each Zn2+cation is coordinated by two N-donor atoms from the nacnac ligand and two O-donor atoms of hydroxide anions to give a distorted tetrahedral coordination environment. The Zn—O bond lengths are 1.9643 (13) and 2.0022 (14) Å, and the two Zn—N bond lengths are 1.9696 (14) and 1.9823 (14) Å. The distance between the two Zn2+cations in the dimer is 2.9420 (4) Å. Although hydroxide groups are present in the complex, no classical hydrogen-bonding interations are observed because of the bulky β-diketiminate ligands.

scholarly journals Crystal structure of bis{2,4-di-tert-butyl-6-[(isopropylimino)methyl]phenolato-κ2N,O}zinc dichloromethane monosolvate

2014 ◽  
Vol 70 (12) ◽  
pp. m390-m391
Author(s):  
Yuan-Zeng Hao
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Dihedral Angle ◽  
Title Compound ◽  
Tetrahedral Coordination ◽  
Complex Molecules ◽  
Hydrogen Bonding Interactions ◽  
Solvent Molecules ◽  
Imine Ligands ◽  
Distorted Tetrahedral Coordination

In the title compound, [Zn(C18H28NO)2]·CH2Cl2, the ZnIIatom isN,O-chelated by two crystallographically independent salicylaldehyde imine ligands, leading to a distorted tetrahedral coordination sphere. The dihedral angle between the planes of the two metallacycles is 88.69 (6)°. Intramolecular non-classical C—H...O hydrogen-bonding interactions are observed. In the crystal, the complex molecules stack into columns along theaaxis. Dichloromethane solvent molecules are situated in the voids of this arrangement.

scholarly journals Crystal structure of dimethyl 4,4′-dimethoxybiphenyl-3,3′-dicarboxylate

2016 ◽  
Vol 72 (3) ◽  
pp. 328-330 ◽  
Author(s):  
Fredrik Lundvall ◽  
Pascal D. C. Dietzel ◽  
Helmer Fjellvåg
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Crystal Packing ◽  
Van Der Waals Forces ◽  
Torsion Angles ◽  
Compound C ◽  
Hydrogen Bonding Interactions ◽  
Benzene Rings ◽  
Out Of Plane

In the title compound, C18H18O6, the benzene rings are coplanar due to the centrosymmetric nature of the molecule, with an inversion centre located at the midpoint of the C—C bond between the two rings. Consequently, the methyl carboxylate substituents are oriented in atransfashion with regards to the bond between the benzene rings. The methyl carboxylate and methoxy substituents are rotated slightly out of plane relative to their parent benzene rings, with dihedral and torsion angles of 18.52 (8) and −5.22 (15)°, respectively. The shortest O...H contact between neighbouring molecules is about 2.5 Å. Although some structure-directing contributions from C—H...O hydrogen-bonding interactions are possible, the crystal packing seems primarily directed by weak van der Waals forces.

scholarly journals Crystal structure of 2-(2,4-diphenyl-3-azabicyclo[3.3.1]nonan-9-ylidene)acetonitrile

2015 ◽  
Vol 71 (10) ◽  
pp. o792-o793
Author(s):  
K. Priya ◽  
K. Saravanan ◽  
S. Kabilan ◽  
S. Selvanayagam
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Crystal Packing ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Chair Conformation ◽  
Equatorial Orientation ◽  
Amino Group ◽  
Phenyl Rings

In the title 3-azabicyclononane derivative, C22H22N2, both the fused piperidine and cyclohexane rings adopt a chair conformation. The phenyl rings attached to the central azabicylononane fragment in an equatorial orientation are inclined to each other at 23.7 (1)°. The amino group is not involved in any hydrogen bonding, so the crystal packing is stabilized only by van der Waals forces.

scholarly journals Crystal structure of bis(μ2-4-tert-butyl-2-formylphenolato)-1:2κ3O1,O2:O1;3:4κ3O1,O2:O1-bis(4-tert-butyl-2-formylphenolato)-2κ2O1,O2;4κ2O1,O2-di-μ3-methoxido-1:2:3κ3O;1:3:4κ3O-di-μ2-methoxido-1:4κ2O;2:3κ2O-tetracopper(II)

2015 ◽  
Vol 71 (3) ◽  
pp. 324-326
Author(s):  
Bernhard Eberhard Christian Bugenhagen ◽  
Marc Heinrich Prosenc
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Coordination Sphere ◽  
Title Compound ◽  
Coordination Environment ◽  
Dinuclear Copper ◽  
Tert Butyl ◽  
Hydrogen Bonding Interactions ◽  
Square Planar

The structure of the title compound, [Cu4(CH3O)4(C11H13O2)4], consists of dimeric dinuclear copper(II) complexes oriented around a centre of inversion. Within each dinuclear fragment, the two CuIIatoms are in a distorted square-planar coordination sphere. Two neighbouring fragments are linked by four apical Cu—O contacts, yielding an overall square-pyramidal coordination environment for each of the four CuIIatoms. The molecules are arranged in layers parallel to (101). Non-classical C—H...O hydrogen-bonding interactions are observed between the layers.

scholarly journals Crystal structure of [bis(2,6-diisopropylphenyl) phosphato-κO]tris(methanol-κO)lithium methanol monosolvate

2015 ◽  
Vol 71 (5) ◽  
pp. 443-446 ◽  
Author(s):  
Mikhail E. Minyaev ◽  
Ilya E. Nifant'ev ◽  
Alexander N. Tavtorkin ◽  
Sof'ya A. Korchagina ◽  
Shadana Sh. Zeynalova
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Tetrahedral Coordination ◽  
Intermolecular Hydrogen Bonds ◽  
Coordination Environment ◽  
The Family ◽  
Phosphate Diesters ◽  
Distorted Tetrahedral Coordination

Crystals of the title compound, [Li{OOP(O-2,6-iPr2C6H3)2}(CH3OH)3]·CH3OH or [Li(C24H34O4P)(CH3OH)3]·CH3OH, have been formed in the reaction between HOOP(O-2,6-iPr2C6H3)2and LiOH in methanol. The title compound is of interest as it represents the first reported crystal structure of the family of lithium phosphate diesters. The {Li(CH3OH)3[O2P(O-iPr2C6H3)2]} unit displays the Li atom in a slightly distorted tetrahedral coordination environment and exhibits one intramolecular O—H...O hydrogen bond between a coordinating methanol molecule and the terminal non-coordinating O atom of the phosphate group. The unit is connected with two non-coordinating methanol molecules through two intermolecular O—H...O hydrogen bonds, and with a neighbouring unit through two other O—H...O interactions. These intermolecular hydrogen bonds lead to the formation of infinite chains along [100]. There are no significant interactions between the chains.

scholarly journals Poly[tetrakis(μ-1,1,1,3,3,3-hexafluoropropan-2-olato)iron(II)dipotassium]

2014 ◽  
Vol 70 (2) ◽  
pp. m32-m33 ◽  
Author(s):  
Andrew P. Purdy ◽  
Ray J. Butcher
Keyword(s):  
Hydrogen Bonding ◽  
Title Compound ◽  
Three Dimensional ◽  
The Other ◽  
Tetrahedral Coordination ◽  
Compound K ◽  
Coordination Environment ◽  
Weak Hydrogen Bonding ◽  
Alternating Chain ◽  
Distorted Tetrahedral Coordination

The title compound, [K2Fe{OCH(CF3)2}4]n, was formed from the reaction of potassium hexafluoroisopropoxide with iron(II) chloride in toluene. The FeIIatom has a highly distorted tetrahedral coordination environment. All four of the non-equivalent hexafluoroisopropoxy O atoms link the FeIIatoms to one of the K+atoms in an alternating chain of Fe—O—K—O fused four-membered rings, with K—Fe distances of 3.715 (2) and 3.717 (2) Å. This K+atom is also bridged to eight of the F atoms. The other K+atom is bonded to only two of the O atoms, but has seven short K...F contacts, one of which links the chains into a three-dimensional arrangement. Weak hydrogen bonding between the lone H atoms on the hexafluoroisopropoxy groups and F atoms is also present. The crystal studied was refined as an inversion twin.

scholarly journals Di-μ-oxido-bis({2,2′-[ethane-1,2-diylbis(nitrilomethanylylidene)]diphenolato}titanium(IV)) chloroform disolvate

2013 ◽  
Vol 69 (11) ◽  
pp. m626-m627 ◽  
Author(s):  
Kirill V. Zaitsev ◽  
Sergey S. Karlov ◽  
Galina S. Zaitseva ◽  
Elmira Kh. Lermontova ◽  
Andrei V. Churakov
Keyword(s):  
Hydrogen Bonding ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Complex Molecules ◽  
Coordination Environment ◽  
Hydrogen Bonding Interactions ◽  
Distorted Octahedral ◽  
Solvent Molecules

In the title compound, [Ti2(C16H14N2O2)2O2]·2CHCl3, the TiIVatom in the centrosymmetric complex has a distorted octahedral N2O4coordination environment and is linkedviatwo μ2-oxido bridges into a dinuclear centrosymmetric complex, with a Ti...Ti separation of 2.7794 (8) Å. In the salen (N,N′-ethylenebis(salicylimine)) ligand, the two salicylimine units make a dihedral angle of 45.31 (5)°. The complex molecules are stacked parallel to [100], forming channels in which the solvent chloroform molecules are located. C—H...O hydrogen-bonding interactions between the complex molecules and the solvent molecules consolidate the crystal packing.

scholarly journals [1,2-Bis(diisopropylphosphanyl)ethane-κ2 P,P′](2-fluoro-N-{[(2-fluorophenyl)azanidyl]carbonyl}anilinido-κ2 N,N′)nickel(II)

IUCrData ◽  
2020 ◽  
Vol 5 (5) ◽  
Author(s):  
Marcos Flores-Alamo ◽  
Francisco J. Perez-Ortiz ◽  
Alma Arevalo ◽  
Juventino J. Garcia
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Title Complex ◽  
Coordination Environment ◽  
Hydrogen Bonding Interactions ◽  
Square Planar ◽  
Derivatives Of

The molecular structure of the title complex, [Ni(C13H8F2N2O)(C14H32P2)] or Ni(oFPU)(dippe), where oFPU is the dianion of bis(2-fluorophenyl)urea and dippe is 1,2-bis(di-isopropylphosphino)ethane, comprises an NiII atom with a distorted square-planar coordination environment (geometry index τ4 = 0.195). One of the fluorophenyl rings of the oFPU ligand is disordered over two sets of sites in an 0.832 (7):0.168 (7) ratio. The crystal structure displays C—H...O and C—H...F hydrogen-bonding interactions, leading to chains with R 2 2(12) motifs extending parallel to [100]. The title compound might be of interest with respect to the production of urea and carbamate derivatives of nickel(II).

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