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 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 Crystal structure of 2-(4-chloro-3-fluorophenyl)-1H-benzimidazole

2015 ◽  
Vol 71 (6) ◽  
pp. o387-o388 ◽  
Author(s):  
M. S. Krishnamurthy ◽  
Noor Shahina Begum
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Three Dimensional ◽  
Ring System ◽  
Benzimidazole Ring ◽  
Compound C ◽  
Dimensional Network

In the title compound, C13H8ClFN2, the dihedral angle between the plane of the benzimidazole ring system (r.m.s. deviation = 0.022 Å) and the benzene ring is 26.90 (8)°. The F atom at themetaposition of the benzene ring is disordered over two sites in a 0.843 (4):0.157 (4) ratio. In the crystal, molecules are linked by N—H...N hydrogen bonds, forming infiniteC(4) chains propagating along [010]. In addition, weak C—H...π and π–π interactions [shortest centroid–centroid separation = 3.6838 (12) Å] are observed, which link the chains into a three-dimensional network.

scholarly journals 2-[4-(Trifluoromethyl)phenyl]-1H-benzimidazole

2014 ◽  
Vol 70 (7) ◽  
pp. o760-o760 ◽  
Author(s):  
M. S. Krishnamurthy ◽  
Noor Shahina Begum
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Ring System ◽  
Two Dimensional ◽  
Benzimidazole Ring ◽  
Ring Form ◽  
Compound C ◽  
Dimensional Network ◽  
The Mean

In the title compound, C14H9F3N2, the mean planes of the benzimidazole ring system and the trifluoromethyl-substituted benzene ring form a dihedral angle of 30.1 (1)°. In the crystal, molecules are linked by N—H...N hydrogen bonds into chains along [010]. Weak C—H...F hydrogen bonds and a weak C—H...π interaction connect the chains into a two-dimensional network parallel to (001).

scholarly journals 6-Amino-3-methyl-4-(3,4,5-trimethoxyphenyl)-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile

2014 ◽  
Vol 70 (8) ◽  
pp. o875-o876 ◽  
Author(s):  
Naresh Sharma ◽  
Goutam Brahmachari ◽  
Bubun Banerjee ◽  
Rajni Kant ◽  
Vivek K. Gupta
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Pyrazole Ring ◽  
Ring System ◽  
Boat Conformation ◽  
Two Dimensional ◽  
Compound C ◽  
Dimensional Network ◽  
Centroid Distance

In the title compound, C17H18N4O4, the dihedral angle between the benzene ring and 2,4-dihydropyrano[2,3-c]pyrazole ring system is 89.41 (7)°. The pyran moiety adopts a strongly flattened boat conformation. In the crystal, molecules are linked by N—H...N, N—H...O, C—H...N and C—H...O hydrogen bonds into an infinite two-dimensional network parallel to (110). There are π–π interactions between the pyrazole rings in neighbouring layers [centroid–centroid distance = 3.621 (1) Å].

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 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].

6-(2-Chloro-4-fluorobenzylamino)purine

2006 ◽  
Vol 62 (4) ◽  
pp. o1536-o1538 ◽  
Author(s):  
Zden˘ek Trávníček ◽  
Jaromír Marek ◽  
Igor Popa
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Normal Values ◽  
Crystal Packing ◽  
Ring System ◽  
Bond Lengths ◽  
The Mean ◽  
Title Molecule ◽  
Purine Ring

In the title molecule, C12H9ClFN5, all bond lengths and angles show normal values. The mean planes of the benzene ring and the purine ring system make a dihedral angle of 77.79 (5)°. Intermolecular N—H...N hydrogen bonds link the molecules into ribbons extending along the [1\overline{1}0] direction. The crystal packing is further stablized by weak C—H...F and C—H...Cl interactions.

scholarly journals 5-Benzoyl-4-(4-fluorophenyl)-3,4-dihydropyrimidin-2(1H)-one

2013 ◽  
Vol 69 (2) ◽  
pp. o196-o196
Author(s):  
Rajni Kant ◽  
Vivek K. Gupta ◽  
Kamini Kapoor ◽  
D. R. Patil ◽  
Madhukar B. Deshmukh
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Supramolecular Structure ◽  
Dihedral Angles ◽  
Two Dimensional ◽  
Phenyl Rings ◽  
Title Molecule

In the title molecule, C17H13FN2O2, the 3,4-dihydropyrimidine ring adopts a flattened sofa conformation with the flap atom (which bears the fluorophenyl substituent) deviating from the plane defined by the remaining five ring atoms by 0.281 (2) Å. This plane forms dihedral angles of 85.98 (6) and 60.63 (6)° with the 4-fluorophenyl and benzoyl-phenyl rings, respectively. The dihedral angle between the 4-fluorophenyl group and the benzene ring is 71.78 (6)°. In the crystal, N—H...O hydrogen bonds link molecules into inversion dimers that are further connected by another N—H...O interaction into a two-dimensional supramolecular structure parallel to (101).

scholarly journals Ethyl 2-[(3-methylquinoxalin-2-yl)sulfanyl]acetate

IUCrData ◽  
2017 ◽  
Vol 2 (12) ◽  
Author(s):  
Mohcine Missioui ◽  
Joel T Mague ◽  
Mohammed El Fal ◽  
Jamal Taoufik ◽  
El Mokhtar Essassi ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Ring System ◽  
Stacking Interactions ◽  
Axis Direction ◽  
Π Stacking ◽  
The Mean ◽  
Title Molecule ◽  
Quinoxaline Ring

In the title molecule, C13H14N2O2S, the dihedral angle between the pyrazine and benzene ring planes is 2.21 (5)°. The mean plane of the quinoxaline ring system is inclined to the sufanylacetate substituent by 81.74 (2)°. In the crystal, inversion-related C—H...N hydrogen bonds form dimers, which are linked into oblique stacks along thea-axis direction by C—H...O hydrogen bonds and π–π-stacking interactions.

Sign in / Sign up

Export Citation Format

Share Document