scholarly journals Methyl 4-(4-hydroxyphenyl)-6-methyl-2-sulfanylidene-1,2,3,4-tetrahydropyrimidine-5-carboxylate

2014 ◽  
Vol 70 (3) ◽  
pp. o306-o306
Author(s):  
Nikhath Fathima ◽  
H. Nagarajaiah ◽  
Noor Shahina Begum
Keyword(s):  
Hydrogen Bonds ◽  
Carbonyl Group ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Maximum Deviation ◽  
Two Dimensional ◽  
Dimensional Network ◽  
The Mean ◽  
Title Molecule

In the title molecule, C13H14N2O3S, the dihydropyrimidine ring is in a flattened sofa conformation, with the methine C atom forming the flap. The dihedral angle between the mean plane of the five essentially planar atoms of the dihydropyrimidine ring [maximum deviation = 0.056 (4) Å] and the benzene ring is 89.4 (2)°. The O atom of the carbonyl group is in atransconformation with respect to the C=C bond of the dihydropyrimidine ring. In the crystal, N—H...O and O—H...S hydrogen bonds connect molecules, forming a two-dimensional network parallel to (001).

scholarly journals N-(3-Chloro-1H-indazol-5-yl)-4-methoxybenzenesulfonamide

2013 ◽  
Vol 69 (11) ◽  
pp. o1632-o1632
Author(s):  
Hakima Chicha ◽  
El Mostapha Rakib ◽  
Latifa Bouissane ◽  
Mohamed Saadi ◽  
Lahcen El Ammari
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Two Dimensional ◽  
Common Edge ◽  
Compound C ◽  
Dimensional Network ◽  
The Common ◽  
The Mean

In the title compound, C14H12ClN3O3S, the fused five- and six-membered rings are folded slightly along the common edge, forming a dihedral angle of 3.2 (1)°. The mean plane through the indazole system makes a dihedral angle of 30.75 (7)° with the distant benzene ring. In the crystal, N—H...O hydrogen bonds link the molecules, forming a two-dimensional network parallel to (001).

scholarly journals 2-(3,4-Difluorophenyl)-1H-benzimidazole

2013 ◽  
Vol 69 (11) ◽  
pp. o1689-o1689 ◽  
Author(s):  
M. S. Krishnamurthy ◽  
Nikhath Fathima ◽  
H. Nagarajaiah ◽  
Noor Shahina Begum
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Ring System ◽  
Two Dimensional ◽  
Benzimidazole Ring ◽  
Dimensional Network ◽  
Title Molecule

In the title molecule, C13H8F2N2, the dihedral angle between the benzimidazole ring system and the difluoro-substituted benzene ring is 30.0 (1)°. In the crystal, molecules are linked by N—H...N hydrogen bonds, forming chains along [010]. In addition, weak C—H...F hydrogen bonds connect chains into a two-dimensional network parallel to (001). A weak C—H...π interaction is observed between an H atom of the benzimidazole ring sytem and the π system of the difluoro-substituted benzene ring.

scholarly journals N-[2-(9H-Carbazol-9-yl)ethyl]-4-(methylsulfonyl)aniline

2014 ◽  
Vol 70 (3) ◽  
pp. o332-o332
Author(s):  
Hongshan Lai ◽  
Judith C. Gallucci ◽  
Chenglong Li
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Ring System ◽  
Maximum Deviation ◽  
The Mean ◽  
Title Molecule

In the title molecule, C21H20N2O2S, the dihedral angle between the mean plane of the carbazole ring system [maximum deviation = 0.021 (4) Å] and the benzene ring is 80.15 (6)°. In the crystal, molecules are linked by N—H...O and weak C—H...O hydrogen bonds into aC(8) chain along [001].

scholarly journals 2,2-Bis(1H-indol-3-yl)indolin-3-one

2009 ◽  
Vol 65 (6) ◽  
pp. o1353-o1353
Author(s):  
Zhao-Hao Li ◽  
Jing Xu ◽  
Wen-Liang Wu ◽  
Wei-Ping Su
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Dihedral Angles ◽  
Two Dimensional ◽  
Dimensional Network ◽  
The Mean ◽  
Title Molecule

In the title molecule, C24H17N3O, the mean plane of the indolone ring forms dihedral angles of 112.0 (1) and 103.1 (1)° with the planes of the two indole rings. The dihedral angle between the mean planes of the two indole rings is 63.5 (1)°. In the crystal structure, molecules are linkedviaintermolecular N—H...O hydrogen bonds, forming a two-dimensional network parallel to theabplane.

scholarly journals Crystal structure of 4-azidomethyl-6-isopropyl-2H-chromen-2-one

2015 ◽  
Vol 71 (4) ◽  
pp. o227-o228 ◽  
Author(s):  
M. S. Krishnamurthy ◽  
Noor Shahina Begum ◽  
D. Shamala ◽  
K. Shivashankar
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Ring System ◽  
Maximum Deviation ◽  
Two Dimensional ◽  
Π Interactions ◽  
Dimensional Network ◽  
Title Molecule

In the title molecule, C13H13N3O2, the benzopyran ring system is essentially planar, with a maximum deviation of 0.017 (1) Å. In the crystal, weak C—H...O hydrogen bonds link molecules into ladders along [010]. In addition, π–π interactions between inversion-related molecules, with centroid–centroid distances in the range 3.679 (2)–3.876 (2) Å, complete a two-dimensional network parallel to (001).

scholarly journals (E)-3-(9-Ethyl-9H-carbazol-3-yl)-1-(2-methoxyphenyl)prop-2-en-1-one

2014 ◽  
Vol 70 (2) ◽  
pp. o190-o190 ◽  
Author(s):  
Hongshan Lai ◽  
Judith C. Gallucci ◽  
Chenglong Li
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Ring System ◽  
Maximum Deviation ◽  
Title Molecule

In the title molecule, C24H21NO2, the dihedral angle between the carbazole ring system [with a maximum deviation of 0.052 (2) Å] and the benzene ring is 38.6 (1)°. In the crystal, weak bifurcated (C—H)2...O hydrogen bonds link the molecules into chains along [100].

scholarly journals (E)-3,4,5-Trimethoxy-N′-[(6-methoxy-4-oxo-4H-chromen-3-yl)methylidene]benzohydrazide monohydrate

2014 ◽  
Vol 70 (8) ◽  
pp. o832-o832 ◽  
Author(s):  
Yoshinobu Ishikawa ◽  
Kohzoh Watanabe
Keyword(s):  
Hydrogen Bonds ◽  
Water Molecule ◽  
Benzene Ring ◽  
Dihedral Angles ◽  
Two Dimensional ◽  
Solvent Water Molecule ◽  
Solvent Water ◽  
Dimensional Network ◽  
The Mean

In the title chromone-tethered benzohydrazide derivative, C21H20N2O7·H2O, the atoms of the 4H-chromen-4-one segment are essentially coplanar (r.m.s. deviation = 0.0073 Å) with the largest deviation from the mean plane [0.012 (3) Å] being found for the benzene C atom. The dihedral angles between the chromone segment and the hydrazide plane and between the chromone segment and the benzene ring of the trimethoxybenzene unit are 24.67 (9) and 41.28 (8) Å, respectively. The molecule is connected to the solvent water molecule by O—H...O hydrogen bonds and weak C—H...O interactions. Additional N—H...O interactions are observed and together they link the molecules into chains forming a two-dimensional network along (011).

scholarly journals 2,3-Dimethylquinazolin-4(3H)-one

2014 ◽  
Vol 70 (7) ◽  
pp. o788-o788
Author(s):  
Fozil E. Saitkulov ◽  
Azamat A. Tashniyazov ◽  
Azimjon A. Mamadrahimov ◽  
Kh. M. Shakhidoyatov
Keyword(s):  
Hydrogen Bonds ◽  
Maximum Deviation ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Π Interactions ◽  
Π Stacking ◽  
Dimensional Network ◽  
Centroid Distance ◽  
Title Molecule

The non-H atoms of the title molecule, C10H10N2O, are essentially coplanar, with a maximum deviation of 0.046 (4) Å for the O atom. In the crystal, molecules are linked by weak C—H...O hydrogen bonds, forming chains along [010]. In addtion, weak C—H...π interactions and π–π stacking interactions between benzene and pyrimidine rings, with a centroid–centroid distance of 3.730 (3) Å, link the chains, forming a two-dimensional network parallel to (001).

scholarly journals N 1,N 4,3,6-Tetramethyl-1,2,4,5-tetrazine-1,4-dicarboxamide

2012 ◽  
Vol 68 (6) ◽  
pp. o1841-o1842
Author(s):  
Na-Bo Sun ◽  
Guo-Wu Rao ◽  
Qun Shen
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angles ◽  
Maximum Deviation ◽  
Boat Conformation ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Compound C ◽  
Dimensional Network ◽  
The Mean ◽  
Independent Molecules

The asymmetric unit of the title compound, C8H14N6O2, contains two independent molecules. In one molecule, the amide-substituted N atoms of the tetrazine ring deviate from the plane [maximum deviation = 0.028 (1) Å] through the four other atoms in the ring by 0.350 (2) and 0.344 (2) Å, forming a boat conformation, and the mean planes of the two carboxamide groups form dihedral angles of 10.46 (13) and 20.41 (12)° with the four approximtely planar atoms in the tetrazine ring. In the other molecule, the amide-substituted N atoms of the tetrazine ring deviate from the plane [maximum deviation = 0.033 (1) Å] through the four other atoms in the ring by 0.324 (2) and 0.307 (2) Å, forming a boat conformation, and the mean planes of the two carboxamide groups form dihedral angles of 14.66 (11) and 17.08 (10)° with the four approximately planar atoms of the tetrazine ring. In the crystal, N—H...O hydrogen bonds connect molecules to form a two-dimensional network parallel to (1-1-1). Intramolecular N—H...N hydrogen bonds are observed.

scholarly journals 3-Chloro-N-cyclohexylbenzamide

2009 ◽  
Vol 65 (6) ◽  
pp. o1265-o1265
Author(s):  
M. Khawar Rauf ◽  
Michael Bolte ◽  
Amin Badshah
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Ring Plane ◽  
Benzene Ring Plane ◽  
The Mean ◽  
Title Molecule

In the title molecule, C13H16ClNO, the mean plane of the atoms in the –CONH– group forms a dihedral angle of 42.0 (4)° with the benzene ring plane. In the crystal structure, molecules are linked by intermolecular N—H...O hydrogen bonds, generatingC(4) chains along [100].

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