scholarly journals (2E)-1-(3,5-Dihydroxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one

2014 ◽  
Vol 70 (5) ◽  
pp. o608-o609 ◽  
Author(s):  
K. S. Ezhilarasi ◽  
D. Reuben Jonathan ◽  
Shanmugam Sathya ◽  
K. Prathebha ◽  
G. Usha
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Two Dimensional ◽  
Three Dimensional Structure ◽  
Compound C ◽  
Benzene Rings ◽  
Ring Motif

In the title compound, C16H14O4, the benzene rings are inclined to one another by 4.91 (7)°. The conformation about the C=O and C=C bonds istransandcis, respectively. In the crystal, molecules are linked by O—H...O hydrogen bonds, forming inversion dimers with anR22(14) ring motif. The dimers are linkedviaO—H...O and C—H...O hydrogen bonds, forming undulating two-dimensional networks lying parallel to (10-1). These networks are linked by further C—H...O hydrogen bonds, forming a three-dimensional structure.

scholarly journals 8-Hydroxy-3,4-bis(4-methoxyphenyl)-1H-isochromen-1-one

IUCrData ◽  
2017 ◽  
Vol 2 (4) ◽  
Author(s):  
Sivakalai Mayakrishnan ◽  
Y. Arun ◽  
Narayanan Uma Maheswari
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Ring System ◽  
Dimensional Structure ◽  
Three Dimensional Structure ◽  
Π Interactions ◽  
Compound C ◽  
Benzene Rings ◽  
The Mean

In the title compound, C23H18O5, the two methoxy-substituted benzene rings are inclined to one another by 67.0 (2)° and to the mean plane of the 1H-isochromene ring system by 67.21 (16) and 27.61 (17)°. There is an intramolecular C—H...π interaction present involving the two 4-methoxyphenyl rings. In the crystal, molecules are linked by O—H...O hydrogen bonds, forming chains propagating along the [301] direction. The chains are linked by a number of C—H...π interactions, forming a three-dimensional structure.

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 1-Acetyl-5-methoxy-4-(phenylsulfanyl)imidazolidin-2-one

2014 ◽  
Vol 70 (2) ◽  
pp. o145-o146
Author(s):  
Joel T. Mague ◽  
Alaa A.-M. Abdel-Aziz ◽  
Adel S. El-Azab ◽  
Amer M. Alanazi
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Three Dimensional Structure ◽  
Π Interactions ◽  
Compound C ◽  
Independent Molecules

The title compound, C12H14N2O3S, crystallizes with two independent molecules (AandB) in the asymmetric unit. The five-membered imidazolidin-2-one rings in both molecules are twisted about the C—C bond. In the crystal, theAandBmolecules are associatedviapairs of N—H...O hydrogen bonds, formingA–Bdimers. These dimers are linkedviaC—H...S hydrogen bonds, forming double dimers, which are in turn linkedviaC—H...O hydrogen bonds forming two-dimensional networks lying parallel to (001). There are also C—H...π interactions present, which consolide the layers and link them, so forming a three-dimensional structure.

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 {(3S,5R)-5-(2,4-Difluorophenyl)-5-[(1H-1,2,4-triazol-1-yl)methyl]tetrahydrofuran-3-yl}methyl 4-methylbenzenesulfonate

IUCrData ◽  
2017 ◽  
Vol 2 (2) ◽  
Author(s):  
Qing-Shuang Ma ◽  
Xiao-Guang Wang ◽  
Lei Xu ◽  
Sun Bin ◽  
Dao-Hong Xia ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Three Dimensional Structure ◽  
Axis Direction ◽  
Envelope Conformation ◽  
Compound C ◽  
Best Fit

In the title compound, C21H21F2N3O4S, the tetrahydrofuran ring adopts an envelope conformation with the β-C atom positioned at the flap. The triazole, difluorophenyl and tolyl rings of the various substituents on the tetrahydrofuran ring are inclined at 77.88 (12), 83.81 (10) and 81.00 (10)°, respectively, to the best-fit mean plane through the five atoms of the tetrahydrofuran ring. In the crystal, weak C—H...O and C—H...F hydrogen bonds link the molecules into a three-dimensional structure, with molecules stacked along thea-axis direction.

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 3,4-Difluoro-2-hydroxybenzoic acid

2014 ◽  
Vol 70 (5) ◽  
pp. o519-o519 ◽  
Author(s):  
Bhaskarachar Ravi Kiran ◽  
Bandrehalli Siddagangaiah Palakshamurthy ◽  
Giriyapura R. Vijayakumar ◽  
Hebbur Shivamurthy Bharath
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Hydroxybenzoic Acid ◽  
Stacking Interactions ◽  
Three Dimensional Structure ◽  
Compound C ◽  
Centroid Distance

In the title compound, C7H4F2O3, an intramolecular O—H...O hydrogen bond is observed. In the crystal, inversion dimers linked by pairs of O—H...O hydrogen bonds generateR22(8) ring motifs. These dimers are linked by C—H...O and C—H...F hydrogen bonds, forming sheets lying parallel to (30-1). The sheets are linked by aromatic π–π stacking interactions [inter-centroid distance = 3.7817 (9) Å], forming a three-dimensional structure.

scholarly journals 5-Bromo-1-methylindoline-2,3-dione

IUCrData ◽  
2016 ◽  
Vol 1 (5) ◽  
Author(s):  
Yassine Kharbach ◽  
Amal Haoudi ◽  
Frédéric Capet ◽  
Ahmed Mazzah ◽  
Lahcen El Ammari
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Ring System ◽  
Dimensional Structure ◽  
Three Dimensional Structure ◽  
Π Interactions ◽  
Compound C ◽  
Centroid Distance ◽  
The Mean

In the title compound, C9H6BrNO2, the indoline ring system, the two ketone O atoms and the Br atom are nearly coplanar, with the largest deviation from the mean plane being −0.1025 (4) Å. In the crystal, molecules are linked by two weak C—H...O hydrogen bonds and π–π interactions [inter-centroid distance = 3.510 (2) Å], forming a three-dimensional structure.

scholarly journals Crystal structure of (E)-3-(4-hydroxybenzyl)-4-{[4-(methylsulfanyl)benzylidene]amino}-1H-1,2,4-triazole-5(4H)-thione

2015 ◽  
Vol 71 (12) ◽  
pp. o982-o983
Author(s):  
P. S. Manjula ◽  
B. K. Sarojini ◽  
B. Narayana ◽  
K. Byrappa ◽  
S. Madan Kumar
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Dihedral Angles ◽  
Compound C ◽  
Centroid Distance ◽  
Ring Motif

In the title compound, C17H16N4OS2, the triazole and methylthiobenzylidene rings are nearly coplanar, making a dihedral angle of 6.52 (12)°. An intramolecular C—H...S hydrogen bond forms anS(6) ring motif. The hydroxybenzyl ring is almost normal to the triazole and methylthiobenzylidene rings, making dihedral angles of 78.56 (12) and 84.79 (11)°, respectively. In the crystal, molecules are linked through O—H...N and N—H...O hydrogen bonds, forming layers parallel to theacplane. The layers are linkedviaC—H...N hydrogen bonds, forming a three-dimensional structure. In addition, a short π–π interaction is observed [inter-centroid distance = 3.764 (3) Å], involving inversion-related methylthiobenzylidene rings.

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.

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