scholarly journals Crystal structure of bis(diisopropylammonium) cis-diiodidobis(oxolato-κ2 O 1,O 2)stannate(IV)

2018 ◽  
Vol 74 (4) ◽  
pp. 502-504 ◽  
Author(s):  
Bougar Sarr ◽  
Cheikh Abdoul Khadir Diop ◽  
Mamadou Sidibé ◽  
Yoann Rousselin
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Molar Ratio ◽  
Iodide Ions ◽  
Oxalate Ions

In the title compound, (iPr2NH2)2[SnI2(C2O4)2], which was prepared by reacting ( i Pr2NH2 +)2·C2O4 2− with SnI4 in a 2:1 molar ratio in a mixed ethanol–acetonitrile solvent, the Sn atom is coordinated by two chelating oxalate ions and two iodide ions, with the latter in a cis configuration. In the crystal, the cations are linked to the anions by N—H...O and bifurcated N—H...(O,O) hydrogen bonds, generating [10-1] chains.

scholarly journals Bis(tetraethylammonium) oxalate dihydrate

2012 ◽  
Vol 68 (8) ◽  
pp. o2382-o2383 ◽  
Author(s):  
Timothy J. McNeese ◽  
Robert D. Pike
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Molar Ratio ◽  
Water Molecules ◽  
Oxalate Dihydrate ◽  
Carboxylate Groups ◽  
Graph Set ◽  
Oxalate Ion

The title compound, 2C8H20N+·C2O42−·2H2O, synthesized by neutralizing H2C2O4·2H2O with (C2H5)4NOH in a 1:2 molar ratio, is a deliquescent solid. The oxalate ion is nonplanar, with a dihedral angle between carboxylate groups of 64.37 (2)°. O—H...O hydrogen bonds of moderate strength link the O atoms of the water molecules and the oxalate ions into rings parallel to thecaxis. The rings exhibit the graph-set motifR44(12). In addition, there are weak C—H...O interactions in the crystal structure.

scholarly journals 1,2-Bis(pyridin-4-yl)diazene–3,4,5-trihydroxybenzoic acid–methanol (3/2/2)

2012 ◽  
Vol 68 (8) ◽  
pp. o2436-o2436
Author(s):  
Elena Rusu ◽  
Sergiu Shova ◽  
Gheorghe Rusu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Molecular Crystal ◽  
Molar Ratio ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Extended System ◽  
Centroid Distance

The title compound, 3C10H8N4·2C7H6O5·2CH4O, has a molecular crystal structure which results from the cocrystallization of gallic acid (GA), 4,4′-azodipyridine (AzPy) and methanol in a 2:3:2 molar ratio. The asymmetric unit comprises one molecule each of GA, AzPy and methanol in general positions and half a molecule of AzPy as this is located about a centre of inversion. In the crystal, all the components of the structure are associatedviathe extended system of hydrogen bonds (O—H...O and O—H...N) and π–π stacking interactions [centroid–centroid distance = 3.637 (3) Å] into two-dimensional supramolecular layers which are packed parallel to the [101] plane. The shortest perpendicular distance and the slippage between aromatic groups are 3.395 (3) and 2.152 (3) Å, respectively. The AzPy molecules display atransconformation with respect to the azo groups.

Bis[diamminesilver(I)] dioxalatoplatinate(II)

2006 ◽  
Vol 62 (5) ◽  
pp. m1144-m1146 ◽  
Author(s):  
Guo-Qiang Wu ◽  
Wan-Zhi Chen
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Three Dimensional Structure ◽  
Linear Configuration ◽  
Oxalate Ions ◽  
Silver Cations

In the title compound, [Ag(NH3)2]2[Pt(C2O4)2], the Ag atom is coordinated in an almost linear configuration by two N atoms from two ammine ligands. The Pt atom, located on an inversion centre, is tetracoordinated by four O atoms from two oxalate ions. The silver cations and platinum-centred anions are each stacked separately in a columnar fashion along the a axis. In the crystal structure, the cations and anions are further linked together through N—H...O hydrogen bonds, forming a three-dimensional structure.

scholarly journals Crystal structure of hexakis(dimethyl sulfoxide-κO)manganese(II) tetraiodide

2016 ◽  
Vol 72 (12) ◽  
pp. 1791-1793 ◽  
Author(s):  
Md Azimul Haque ◽  
Bambar Davaasuren ◽  
Alexander Rothenberger ◽  
Tom Wu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dimethyl Sulfoxide ◽  
Title Compound ◽  
Dmso Molecule ◽  
Site Symmetry ◽  
Iodide Ions ◽  
Cu And Zn

The title salt, [Mn(C2H6OS)6]I4, is made up from discrete [Mn(DMSO)6]2+(DMSO is dimethyl sulfoxide) units connected through non-classical hydrogen bonds to linear I42−tetraiodide anions. The MnIIion in the cation, situated on a position with site symmetry -3., is octahedrally coordinated by O atoms of the DMSO molecule with an Mn—O distance of 2.1808 (12) Å. The I42−anion contains a neutral I2molecule weakly coordinated by two iodide ions, forming a linear centrosymmetric tetraiodide anion. The title compound is isotypic with the Co, Ni, Cu, and Zn analogues.

Synthesis, Crystal Structure And Spectroscopic Studies Of A Mixed Ligand Copper (Ii) Complex: Trans-Bis(Succinimidato)-Bis(Benzylamino)Cu(Ii)

2006 ◽  
Vol 61 (8) ◽  
pp. 979-982 ◽  
Author(s):  
Murat Taş ◽  
Hanife Saraçoğlu ◽  
Hümeyra Bati ◽  
Nezihe Çalışkan ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Spectroscopic Studies ◽  
Mixed Ligand ◽  
Interplanar Angle ◽  
Space Group ◽  
Square Planar

The molecules of the title compound, [Cu(C11H13N2O2)2], lie across centres of inversion in space group P21/c and are linked by intermolecular N-H···O and C-H···O hydrogen bonds. The central Cu atom has a slightly distorted square-planar coordination comprised of four N atoms. Cu-N bond distances are 1.975(2) and 2.020(2) Å . The interplanar angle between the phenyl and succinimidato ring is 87.34(10)°

scholarly journals N-(5-Chloro-1,3-thiazol-2-yl)-2,4-difluorobenzamide

2012 ◽  
Vol 68 (6) ◽  
pp. o1857-o1857 ◽  
Author(s):  
Xi-Wang Liu ◽  
Jian-Yong Li ◽  
Han Zhang ◽  
Ya-Jun Yang ◽  
Ji-Yu Zhang
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Benzoyl Chloride ◽  
Bond Lengths ◽  
Compound C

The title compound, C10H5ClF2N2OS, was obtained by linking an amino heterocycle and a substituted benzoyl chloride. The dihedral angle between the two rings is 41.2 (2)° and the equalization of the amide C—N bond lengths reveals the existence of conjugation between the benzene ring and the thiazole unit. In the crystal, pairs of N—H...N hydrogen bonds link molecules into inversion dimers. Non-classical C—H...F and C—H...O hydrogen bonds stabilize the crystal structure.

scholarly journals Powder study of 3-azabicyclo[3.3.1]nonane-2,4-dione form 2

2006 ◽  
Vol 62 (7) ◽  
pp. o3046-o3048 ◽  
Author(s):  
Ashley T Hulme ◽  
Philippe Fernandes ◽  
Alastair Florence ◽  
Andrea Johnston ◽  
Kenneth Shankland
Keyword(s):  
Crystal Structure ◽  
Simulated Annealing ◽  
Hydrogen Bonds ◽  
Powder Diffraction ◽  
Title Compound ◽  
Variable Temperature ◽  
Polycrystalline Sample ◽  
Asymmetric Unit ◽  
X Ray ◽  
Compound C

A polycrystalline sample of a new polymorph of the title compound, C8H11NO2, was produced during a variable-temperature X-ray powder diffraction study. The crystal structure was solved at 1.67 Å resolution by simulated annealing from laboratory powder data collected at 250 K. Subsequent Rietveld refinement yielded an R wp of 0.070 to 1.54 Å resolution. The structure contains two molecules in the asymmetric unit, which form a C 2 2(8) chain motif via N—H...O hydrogen bonds.

scholarly journals Crystal structure of diisopropylaminium dichloroacetate

2015 ◽  
Vol 71 (5) ◽  
pp. o361-o361
Author(s):  
Wei Sun ◽  
Guangzhi Shan
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Compound C

In the title compound, C6H16N+·C2HCl2O2−, the cation exhibits non-crystallographicC2symmetry. In the crystal, the components are linked by N—H...O and C—H...O hydrogen bonds into chains propagating along [010].

scholarly journals Crystal structure of 5,10,15-triphenyl-20-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)porphyrin

2014 ◽  
Vol 70 (10) ◽  
pp. o1085-o1086
Author(s):  
Mathias O. Senge ◽  
Hans-Georg Eckhardt
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Central Region ◽  
Title Compound ◽  
Ring System ◽  
Compound C ◽  
Porphyrin Macrocycle ◽  
Phenyl Rings ◽  
Supramolecular Chains

In the title compound, C44H37BN4O2, the dihedral angle between the plane of the porphyrin macrocycle ring system [r.m.s. deviation = 0.159 (1) Å] and those of three phenyl rings are 66.11 (4), 74.75 (4) and 57.00 (4)°. The conformational distortion is characterized by a mixture of ruffled, saddle and in-plane distortion modes. In the crystal, the porphyrin molecules are linked by C—H...π interactions into supramolecular chains running along thea-axis direction. A pair of bifurcated N—H...(N,N) hydrogen bonds occur across the central region of the macrocycle.

scholarly journals 2,6-Bis(4-methoxybenzylidene)cyclohexanone

2006 ◽  
Vol 62 (5) ◽  
pp. o1910-o1912 ◽  
Author(s):  
Ray J. Butcher ◽  
H. S. Yathirajan ◽  
B. K. Sarojini ◽  
B. Narayana ◽  
J. Indira
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Photon Absorption ◽  
Intermolecular Hydrogen Bonds ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Compound C ◽  
Centrosymmetric Dimers

The title compound, C22H22O3, demonstrates a two-photon absorption. Its metrical parameters are similar to those of related cyclohexanone derivatives. In the crystal structure, two sets of centrosymmetric dimers formed by weak C—H...O intermolecular hydrogen bonds combine to form molecular tapes along [101].

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