scholarly journals 5′-([1,1′-Biphenyl]-4-yl)-1′,1′′,3′′-trimethyldispiro[indane-2,2′-pyrrolidine-4′,5′′-[1,3]diazinane]-1,3,2′′,4′′,6′′-pentaone

2014 ◽  
Vol 70 (7) ◽  
pp. o759-o759 ◽  
Author(s):  
Subramanyahegde ◽  
Hosamani Amar ◽  
Yellappa Shivaraj ◽  
Giriyapura R. Vijayakumar ◽  
Bandrehalli Siddagangaiah Palakshamurthy
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Heterocyclic Ring ◽  
Ring System ◽  
Dihedral Angles ◽  
Central Ring ◽  
Envelope Conformation ◽  
Compound C ◽  
Benzene Rings

In the title compound, C30H25N3O5, the central five-membered heterocyclic ring adopts an envelope conformation, with the N atom as the flap. The dihedral angles between this central ring and the pendant indane ring system, the trione and benzene rings are 87.49 (5), 82.95 (10) and 72.42 (10)°, respectively. The dihedral angle between the rings of the biphenyl group is 45.99 (13)°. In the crystal, molecules are linked by C—H...O hydrogen bonds into [101]C(12) chains.

5-(4-Fluorobenzylamino)-3,6-diphenyl-2-thioxo-2,3-dihydro-1,3-thiazolo[4,5-d]pyrimidin-7(6H)-one

2006 ◽  
Vol 62 (5) ◽  
pp. o2062-o2063
Author(s):  
Qian Zhang ◽  
Yuan-Hong Jiao
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Crystal Packing ◽  
Heterocyclic Ring ◽  
Ring System ◽  
Dihedral Angles ◽  
Compound C ◽  
Benzene Rings

In the title compound, C24H17FN4OS2, the three benzene rings are twisted with respect to the fused heterocyclic ring system, with dihedral angles of 76.2 (2), 90.2 (2) and 75.8 (2)°. The crystal packing is influenced by C—H...O, N—H...O and C—H...S hydrogen bonds.

scholarly journals Ethyl 2-(4-chlorophenyl)-1-phenyl-1H-benzimidazole-5-carboxylate

2012 ◽  
Vol 68 (6) ◽  
pp. o1863-o1863 ◽  
Author(s):  
Yeong Keng Yoon ◽  
Elumalai Manogaran ◽  
Tan Soo Choon ◽  
Suhana Arshad ◽  
Ibrahim Abdul Razak
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Dihedral Angles ◽  
Maximum Deviation ◽  
Zigzag Chain ◽  
Benzimidazole Ring ◽  
Compound C ◽  
Benzene Rings

In the title compound, C22H17ClN2O2, the essentially planar benzimidazole ring system [maximum deviation = 0.012 (2) Å] forms dihedral angles of 28.69 (6) and 63.65 (7)°, respectively, with the phenyl and chloro-substituted benzene rings. The dihedral angle between the phenyl and benzene rings is 64.23 (8)°. In the crystal, molecules are linked into a zigzag chain along the a axis by intermolecular C—H...O hydrogen bonds. C—H...π interactions are also present.

scholarly journals 2-Bromo-5-tert-butyl-N-methyl-N-[2-(methylamino)phenyl]-3-(1-methyl-1H-benzimidazol-2-yl)benzamide

2014 ◽  
Vol 70 (7) ◽  
pp. o822-o823
Author(s):  
Poonam Rajesh Prasad ◽  
Shikha Das ◽  
Harkesh B. Singh ◽  
Ray J. Butcher
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Dihedral Angles ◽  
Benzimidazole Ring ◽  
Central Ring ◽  
Π Interactions ◽  
Amide Linkage ◽  
Compound C

In the title compound, C27H29BrN4O, benzimidazole ring system and the amide moiety are planar [r.m.s. deviations = 0.016 (2) and 0.017 (1) Å, respectively]. The molecule adopts a conformation in which the amide linkage is almost perpendicular to the central ring [dihedral angle = 85.79 (8)°], while the benzimidazole ring system makes a dihedral angle of 70.26 (11)° with the central ring. In the crystal, the molecules form dimers through N—H...O hydrogen bonds and C—H...O interactions. These dimers are further linked into zigzag ribbons along [201] by weak C—H...Br interactions. As a result of the bulky nature of the molecule, as evidenced by the large dihedral angles between rings, there is little evidence for any π–π interactions.

scholarly journals rac-cis-5-Methyl-2,3-diphenyl-1,3-thiazolidin-4-one

IUCrData ◽  
2017 ◽  
Vol 2 (11) ◽  
Author(s):  
Hemant P. Yennawar ◽  
John Tierney ◽  
Lee J. Silverberg
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Dihedral Angles ◽  
Aromatic Rings ◽  
Envelope Conformation ◽  
Compound C ◽  
Benzene Rings ◽  
C And N ◽  
Thiazolidine Ring

In the racemic title compound, C16H15NOS, the thiazolidine ring adopts an envelope conformation, with the S atom as the flap. The dihedral angles between the heterocycle (all atoms) and pendant C– and N-bound benzene rings are 69.75 (14) and 56.56 (11)°, respectively; the aromatic rings are almost orthogonal to each other, with a dihedral angle of 76.04 (14)° between them. In the crystal, molecules are linked by weak C—H...O hydrogen bonds to generate [101] chains, with alternating molecules being enantiomers. A weak C—H...π interaction is also observed.

scholarly journals Crystal stucture of methyl 2-({[2-(methoxycarbonyl)phenyl]carbamoyl}amino)benzoate

2015 ◽  
Vol 71 (5) ◽  
pp. o297-o298 ◽  
Author(s):  
Hasna Yassine ◽  
Mostafa Khouili ◽  
Lahcen El Ammari ◽  
Mohamed Saadi ◽  
El Mostafa Ketatni
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Molecular Conformation ◽  
Dihedral Angles ◽  
Aromatic Rings ◽  
Compound C ◽  
Benzene Rings

In the title compound, C17H16N2O5, the dihedral angles between the central urea [N—C(=O)—N] fragment and its attached benzene rings are 20.20 (14) and 24.24 (13)°; the dihedral angle between the aromatic rings is 42.1 (1)°. The molecular conformation is consolidated by two intramolecular N—H...O hydrogen bonds, which both generateS(6) rings. In the crystal, inversion dimers linked by pairs of C—H...O interactions generateR22(14) loops. The dimers are linked by further C—H...O interactions into (011) sheets.

scholarly journals 4-Formyl-2-nitrophenyl 2-chlorobenzoate

2013 ◽  
Vol 69 (12) ◽  
pp. o1806-o1806 ◽  
Author(s):  
Rodolfo Moreno-Fuquen ◽  
Geraldine Hernandez ◽  
Javier Ellena ◽  
Carlos A. De Simone ◽  
Juan C. Tenorio
Keyword(s):  
Hydrogen Bonds ◽  
Nitro Group ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ester Group ◽  
Dihedral Angles ◽  
Compound C ◽  
Benzene Rings ◽  
The Mean

In the title compound, C14H8ClNO5, the benzene rings form a dihedral angle of 19.55 (9)°. The mean plane of the central ester group [r.m.s. deviation = 0.024 Å] forms dihedral angles of 53.28 (13) and 36.93 (16)°, respectively, with the nitro- and chloro-substituted rings. The nitro group forms a dihedral angle of 19.24 (19)° with the benzene ring to which it is attached. In the crystal, molecules are linked by weak C—H...O hydrogen bonds, formingC(7) chains, which run along [100].

4-(4-Chlorophenyl)-5-(4-methylphenyl)-3-(2-pyridyl)-4H-1,2,4-triazole

2006 ◽  
Vol 62 (4) ◽  
pp. o1279-o1280
Author(s):  
Shu-Ping Zhang ◽  
Zhao-Di Liu ◽  
Si-Chang Shao
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Triazole Ring ◽  
Dihedral Angles ◽  
Compound C ◽  
Benzene Rings

In the title compound, C20H15ClN4, the two benzene rings form dihedral angles of 30.95 (9) and 70.69 (6)° with the triazole ring, and the dihedral angle between the triazole and the pyridine rings is 43.38 (8)°. Intermolecular C—H...N hydrogen bonds are observed in the crystal structure.

scholarly journals rac-Methyl (1R,3′S)-1′,1′′-dimethyl-2,2′′-dioxo-2H-dispiro[acenaphthylene-1,2′-pyrrolidine-3′,3′′-indoline]-4′-carboxylate

2013 ◽  
Vol 69 (2) ◽  
pp. o235-o235 ◽  
Author(s):  
G. Ganesh ◽  
Panneer Selvam Yuvaraj ◽  
Chinthalapuri Divakara ◽  
Boreddy S. R. Reddy ◽  
A. SubbiahPandi
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
The Other ◽  
Dihedral Angles ◽  
Indole Ring ◽  
Naphthalene Ring ◽  
Pyrrolidine Ring ◽  
Compound C

In the title compound, C26H22N2O4, the pyrrolidine ring adopts a twisted conformation and the other five-membered rings adopt envelope conformations with the spiro C atoms as the flap atoms. The naphthalene ring system of the dihydroacenaphthylene group forms dihedral angles of 89.2 (9) and 75.5 (6)° with the pyrrolidine and indole rings, respectively. The pyrrolidine ring makes a dihedral angle of 80.1 (9)° with the indole ring. In the crystal, molecules are linked by weak C—H...O hydrogen bonds, forming chains along theb-axis direction.

scholarly journals Crystal structure of 2,5-dimethyl-3-(3-methylphenylsulfonyl)-1-benzofuran

2014 ◽  
Vol 70 (9) ◽  
pp. o1073-o1074 ◽  
Author(s):  
Hong Dae Choi ◽  
Uk Lee
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Methyl Groups ◽  
Compound C ◽  
Centroid Distance ◽  
Benzene Rings ◽  
A Chain

In the title compound, C17H16O3S, the dihedral angle between the plane of the benzofuran ring system [r.m.s. deviation = 0.010 (1) Å] and that of the 3-methylphenyl ring is 79.09 (5)°. Intramolecular C—H...O hydrogen bonds are observed. In the crystal, molecules are connected into a chain along thec-axis direction by two different pairs of inversion-generated interactions: C—H...π hydrogen bonds between the methyl groups and the benzene rings of the 3-methylphenyl fragments and π–π interactions between the benzene and furan rings of neighbouring molecules [centroid–centroid distance = 3.673 (2) Å].

scholarly journals (E)-N′-Hydroxy-1,3-diphenyl-4,5-dihydro-1H-pyrazole-5-carboximidamide

2012 ◽  
Vol 68 (6) ◽  
pp. o1661-o1662 ◽  
Author(s):  
Chandra ◽  
N. Srikantamurthy ◽  
K. B. Umesha ◽  
S. Jeyaseelan ◽  
M. Mahendra
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Pyrazole Ring ◽  
Dihedral Angles ◽  
Compound C ◽  
Benzene Rings ◽  
Phenyl Rings ◽  
A Chain ◽  
Centrosymmetric Dimers

In the molecule of the title compound, C16H16N4O, the pyrazole ring makes dihedral angles of 8.52 (13) and 9.26 (12)° with the phenyl rings. The dihedral angle between the benzene rings is 1.86 (13)°. In the crystal, molecules are linked into centrosymmetric dimers via pairs of O—H...N hydrogen bonds. Weak N—H...N interactions connect the dimers into a chain along the [100] direction. The pyrazole ring adopts a highly flattened envelope conformation.

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