scholarly journals Crystal structure of 3-deoxy-3-nitromethyl-1,2;5,6-di-O-isopropylidene-α-D-allofuranose

2016 ◽  
Vol 72 (3) ◽  
pp. 314-317
Author(s):  
Jevgeņija Lugiņina ◽  
Vitālijs Rjabovs ◽  
Dmitrijs Stepanovs
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Three Dimensional Structure ◽  
Compound C

The title compound, C13H21NO7{systematic name: (3aR,5S,6R,6aR)-5-[(R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-6-(nitromethyl)tetrahydrofuro[2,3-d][1,3]dioxole}, consists of a substituted 2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxolane skeleton. The furanose ringAadopts aoT4conformation. The fused dioxolane ringBand the substituent dioxolane ringCalso have twisted conformations. There are no strong hydrogen bonds in the crystal structure: only weak C—H...O contacts are present, which link the molecules to form a three-dimensional structure.

scholarly journals 4-Cyano-1-methylpyridinium iodide

2012 ◽  
Vol 68 (8) ◽  
pp. o2514-o2514 ◽  
Author(s):  
Michael N. Kammer ◽  
Lynn V. Koplitz ◽  
Joel T. Mague
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Three Dimensional Structure ◽  
Compound C ◽  
Normal Distance

In the crystal structure of the title compound, C7H7N2+·I−, the cations form inversion-related dimersviaweak pairwise C—H...N hydrogen bonds. In the dimers, the pyridinium rings are parallel to one another with their mean planes separated by a normal distance ofca0.28 Å. Weak C—H...N interactions between adjacent dimers generate a layer lying parallel to (10-1). The remaining H atoms form C—H...I interactions, which link the layers into a three-dimensional structure.

scholarly journals Crystal structure of 3,13-dimethoxy-5,6,10,11-tetrahydrofuro[3,4-i][5]helicene-7,9-dione

2014 ◽  
Vol 70 (11) ◽  
pp. 418-420 ◽  
Author(s):  
Thanasat Sooksimuang ◽  
Siriporn Kamtonwong ◽  
Waraporn Parnchan ◽  
Laongdao Kangkaew ◽  
Somboon Sahasithiwat
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Layered Structure ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Asymmetric Unit ◽  
Three Dimensional Structure ◽  
Compound C ◽  
Independent Molecules

The title compound, C26H20O5, crystallizes with two independent molecules (AandB) in the asymmetric unit, which differ primarily in the location of the –OCH3groups. In the crystal, the molecules form a layered structure parallel to (10-1) by C—H...O hydrogen-bonded networks. Adjacent layers are also linked by further C—H...O hydrogen bonds, forming a three-dimensional structure.

scholarly journals Crystal structure of (Z)-2-[(E)-2-benzylidenehydrazin-1-ylidene]-1,2-diphenylethanone

2015 ◽  
Vol 71 (1) ◽  
pp. 35-37 ◽  
Author(s):  
Abdelaziz Bouchama ◽  
Messaoud Yahiaoui ◽  
Chaabane Chiter ◽  
Zouaoui Setifi ◽  
Jim Simpson
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Three Dimensional Structure ◽  
Axis Direction ◽  
Compound C

The title compound, C21H16N2O, has an almost planar (r.m.s. deviation = 0.0074 Å) 1,2-dibenzylidenehydrazine backbone with an approximately orthogonal almost planar (r.m.s. deviation = 0.0368 Å) phenylethanone substituent on one of the imine C atoms. The dihedral angle between the two mean planes is 76.99 (4)°. In the crystal, molecules are linkedviaC—H...O hydrogen bonds and C—H...π contacts, forming a three-dimensional structure with molecules stacked along thea-axis direction.

scholarly journals 1-(4-Nitrophenyl)-2-({4-phenyl-5-[(p-tolyloxy)methyl]-4H-1,2,4-triazol-3-yl}sulfanyl)acetamide

IUCrData ◽  
2016 ◽  
Vol 1 (10) ◽  
Author(s):  
Elham A. Al-Taifi ◽  
Manpreet Kaur ◽  
Mehmet Akkurt ◽  
Shaaban K. Mohamed ◽  
Jerry P. Jasinski
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Three Dimensional Structure ◽  
Π Interactions ◽  
Compound C ◽  
Centrosymmetric Dimers ◽  
Ring Motif

In the crystal structure of the title compound, C24H21N5O4S, centrosymmetric dimers with an R 2 2(16) ring motif, lying in the (010) plane, are formed as a result of pairwise N—H...N hydrogen bonds. These dimers further interact through C—H...O and C—H...π interactions to construct a complex extended three-dimensional structure.

scholarly journals Crystal structure of dimethomorph

2015 ◽  
Vol 71 (9) ◽  
pp. o654-o654
Author(s):  
Gihaeng Kang ◽  
Jineun Kim ◽  
Eunjin Kwon ◽  
Tae Ho Kim
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Dihedral Angles ◽  
Three Dimensional Structure ◽  
Π Interactions ◽  
Compound C ◽  
The Mean

In the title compound, C21H22ClNO4[systematic name: (E)-3-(4-chlorophenyl)-3-(3,4-dimethoxyphenyl)-1-(morpholin-4-yl)prop-2-en-1-one], which is the morpholine fungicide dimethomorph, the dihedral angles between the mean planes of the central chlorophenyl and the terminal benzene and morpholine (r.m.s. deviation = 0.2233 Å) rings are 71.74 (6) and 63.65 (7)°, respectively. In the crystal, molecules are linkedviaC—H...O hydrogen bonds and weak Cl...π interactions [3.8539 (11) Å], forming a three-dimensional structure.

scholarly journals Crystal structure of 2,4,6-tris(cyclohexyloxy)-1,3,5-triazine

2015 ◽  
Vol 71 (11) ◽  
pp. 1328-1331 ◽  
Author(s):  
Ravish Sankolli ◽  
Jürg Hauser ◽  
T. N. Guru Row ◽  
Jürg Hulliger
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Three Dimensional Structure ◽  
Compound C ◽  
Centroid Distance

The title compound, C21H33N3O3, is a tri-substituted cyclohexyloxy triazine. In the crystal, the triazine rings form (C3i-PU) Piedfort units. The inter-centroid distance of the π–π interaction involving the triazine rings is 3.3914 (10) Å. In the crystal, molecules are linked by C—H...O hydrogen bonds, forming ribbons propagating along [1-10]. There are also weak C—H...N and C—H...O contacts present, linking inversion-related ribbons, forming a three-dimensional structure.

scholarly journals Crystal structure of ethyl 2-({[(4Z)-3,5-dioxo-1-phenylpyrazolidin-4-ylidene]methyl}amino)acetate

2014 ◽  
Vol 70 (9) ◽  
pp. o938-o939
Author(s):  
Shaaban K. Mohamed ◽  
Mehmet Akkurt ◽  
Joel T. Mague ◽  
Eman A. Ahmed ◽  
Mustafa R. Albayati
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Side Chain ◽  
Three Dimensional Structure ◽  
Compound C ◽  
The Mean

The title compound, C14H15N3O4, is nearly planar, the dihedral angle between the planes of the phenyl and pyrazolidine rings being 1.13 (7) Å, and that between the plane of the pyrazolidine ring and the mean plane of the side chain [C—N—C–C(=O)—O; r.m.s. deviation = 0.024 Å] being 2.52 (7)°. This is due in large part to the presence of the intramolecular N—H...O and C—H...O hydrogen bonds. In the crystal, pairwise N—H...O hydrogen bonds form inversion dimers, which are further associated into layers, lying very close to plane (-120),viapairwise C—H...O hydrogen bonds. The layers are then weakly connected through C—H...O hydrogen bonds, forming a three-dimensional structure.

scholarly journals Crystal structure of 4-(3,4-dicyanophenoxy)-N-[3-(dimethylamino)propyl]benzamide monohydrate: a phenoxyphthalonitrile derivative

2015 ◽  
Vol 71 (9) ◽  
pp. 1042-1044
Author(s):  
Senem Çolak ◽  
Salih Zeki Yıldız ◽  
Nagihan Çaylak Delibaş ◽  
Hasan Pişkin ◽  
Tuncer Hökelek
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Three Dimensional Structure ◽  
Π Interactions ◽  
Extended Conformation ◽  
Compound C

In the title compound, C20H20N4O2·H2O, the planes of the phenoxy and phthalonitrile rings are oriented at a dihedral angle of 60.39 (5)°. The 3-(dimethylamino)propyl chain has an extended conformation and isciswith respect to the phthalonitrile ring. In the crystal, O—H...O, O—H...N and N—H...O hydrogen bonds link the molecules to form slabs parallel to (100). There are also C—H...O and C—H...N hydrogen bonds and C—H...π interactions present within the slabs. The slabs are linked by a pair of inversion-related C—H...N hydrogen bonds, involving phthalonitrile rings, forming a three-dimensional structure.

scholarly journals Reinvestigation of the crystal structure ofN-(4-chlorobenzylidene)-2-hydroxyaniline: a three-dimensional structure containing O—H...N, O—H...O and C—H...π(arene) hydrogen bonds

2018 ◽  
Vol 74 (3) ◽  
pp. 376-379 ◽  
Author(s):  
Marisiddaiah Girisha ◽  
Hemmige S. Yathirajan ◽  
Ravindranath S. Rathore ◽  
Christopher Glidewell
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Three Dimensional Structure ◽  
Compound C ◽  
Related Compounds

The molecule of the title compound, C13H10ClNO, (I), which contains an intramolecular O—H...N hydrogen bond, is almost planar: the dihedral angle between the two aryl rings is only 3.31 (9)°. The molecules of (I) are linked into sheets by two C—H...π(arene) hydrogen bonds and the sheets are linked into a three-dimensional structure by O—H...O hydrogen bonds. Comparisons are made with the structures of a number of related compounds.

scholarly journals Crystal structure of 1-(5-amino-2H-tetrazol-2-yl)-2-methylpropan-2-ol

2015 ◽  
Vol 71 (12) ◽  
pp. o1057-o1058 ◽  
Author(s):  
Hyun Sik Park ◽  
Ji Yeon Ryu ◽  
Junseong Lee
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Asymmetric Unit ◽  
Three Dimensional Structure ◽  
Compound C ◽  
Independent Molecules

The title compound, C5H11N5O, crystallized with two independent molecules in the asymmetric unit. The two molecules differ in the orientation of the 2-methylpropan-2-ol unit, with the hydroxy H atoms pointing in opposite directions. In the crystal, molecules are linkedviaO—H...O and N—H...O hydrogen bonds, forming ribbons propagating along [10-1]. The ribbons are linkedviaN—H...N hydrogen bonds, forming a three-dimensional structure.

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