scholarly journals 2-(2-Chloro-8-methylquinolin-3-yl)-4-phenyl-1,2-dihydroquinazoline

2013 ◽  
Vol 69 (11) ◽  
pp. o1719-o1720
Author(s):  
Chamseddine Derabli ◽  
Raouf Boulcina ◽  
Sofiane Bouacida ◽  
Hocine Merazig ◽  
Abdelmadjid Debache
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Crystal Packing ◽  
Dihedral Angles ◽  
Compound C ◽  
Centroid Distance ◽  
Benzene Rings ◽  
Phenyl Rings

In the title compound, C24H18ClN3, the dihydroquinazoline and methyl-substituted quinoline benzene rings make a dihedral angle of 78.18 (4)° and form dihedral angles of 45.91 (5) and 79.80 (4)°, respectively, with the phenyl ring. The dihedral angle between the phenyl ring of dihydroquinazoline and the methyl-substituted benzene ring of quinoline is 78.18 (4)°. The crystal packing can be described as crossed layers parallel to the (011) and (0-11) planes. The structure features N—H...N hydrogen bonds and π–π interactions [centroid–centroid distance between phenyl rings = 3.7301 (9) Å].

scholarly journals N′-(3-Hydroxybenzylidene)-4-methylbenzohydrazide

2012 ◽  
Vol 68 (6) ◽  
pp. o1816-o1816
Author(s):  
Ji-Lai Liu ◽  
Ming-Hui Sun ◽  
Jing-Jun Ma
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Aromatic Rings ◽  
Π Interactions ◽  
Compound C ◽  
Centroid Distance ◽  
Benzene Rings

The title compound, C15H14N2O2, was obtained from the reaction of 3-hydroxybenzaldhyde and 4-methylbenzohydrazide in methanol. In the molecule, the benzene rings form a dihedral angle of 2.9 (3)°. In the crystal, N—H...O and O—H...O hydrogen bonds link the molecules into layers parallel to (101). The crystal packing also exhibits π–π interactions between the aromatic rings [centroid–centroid distance = 3.686 (4) Å].

scholarly journals 3-(4-Fluorobenzoyl)-4-(4-fluorophenyl)-4-hydroxy-2,6-diphenylcyclohexane-1,1-dicarbonitrile

2014 ◽  
Vol 70 (6) ◽  
pp. o736-o737
Author(s):  
B. Narayana ◽  
M Sapnakumari ◽  
Balladka K. Sarojini ◽  
Jerry P. Jasinski
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Chair Conformation ◽  
Dihedral Angles ◽  
Compound C ◽  
Phenyl Rings ◽  
Ring Motif

In the title compound, C33H24F2N2O2, the cyclohexane ring adopts a slightly distorted chair conformation. The dihedral angle between the planes of the phenyl rings is 71.80 (9)°, while the planes of the fluorophenyl and fluorobenzoyl rings are inclined to one another by 31.04 (10)°. The dihedral angles between the planes of the phenyl ring adjacent to the 4-hydroxy group and those of the the fluorophenyl and fluorobenzoyl rings are 51.64 (10) and 34.31 (10)°, respectively, while the corresponding angles for the phenyl ring adjacent to the 3-(4-fluorobenzoyl) group are 57.51 (9) and 85.02 (10)°, respectively. An intramolecular O—H...O hydrogen bond generates anS(6) ring motif. In the crystal, molecules are linkedviapairs of O—H...N hydrogen bonds, forming inversion dimers. The dimers are linkedviaC—H...N and C—H...O hydrogen bonds, forming chains along thec-axis direction. C—H...F hydrogen bonds link the chains into sheets lying parallel to thebcplane.

scholarly journals Crystal structure of (E)-2-[(2-hydroxy-4-methoxyphenyl)(phenyl)methylidene]-N-phenylhydrazine-1-carboxamide

2015 ◽  
Vol 71 (4) ◽  
pp. 427-430 ◽  
Author(s):  
C. F. Annie ◽  
M. Sithambaresan ◽  
M. R. Prathapachandra Kurup
Keyword(s):  
Hydrogen Bonds ◽  
Phenyl Ring ◽  
Dihedral Angles ◽  
Maximum Deviation ◽  
Aromatic Rings ◽  
Phenolic Ring ◽  
Compound C ◽  
Centroid Distance ◽  
Benzene Rings ◽  
Phenyl Rings

The title compound, C21H19N3O3, has anEconformation about the azomethine double bond. The central moiety of the hydrazinecarboxamide moiety [–N—N—C(=O)—N–] has an almost coplanar arrangement [maximum deviation for the C atom = 0.010 (2) Å]. This central moiety is flanked by three aromatic rings and its mean plane makes dihedral angles of 24.7 (1), 72.91 (12) and 34.26 (11) Å, respectively, with the phenolic ring, the phenyl ring attached to the same C atom as the phenolic ring, and the phenylhydrazine ring. The adjacent phenolic and phenyl rings are twisted away from each other to reduce steric hindrance and make a dihedral angle of 80.59 (12)°. The phenolic and phenylhydrazine rings are inclined to one another by 28.89 (11)°. The rigidity of the molecule is increased by an intramolecular O—H...N hydrogen bond involving the phenolic hydrogen and the azomethine N atom. In the crystal, the carbonyl O atom forms bifurcated hydrogen bonds with the two NH atoms of the hydrazinic group, leading to the formation of chains propagating along [001]. Within the chains there are also C—H...O hydrogen bonds present. The chains are linkedviaC=O...π [3.4316 (18) Å] and parallel slipped π–π interactions, involving inversion-related benzene rings [centroid–centroid distance = 3.8850 (14) Å; inter-planar distance = 3.3895 (10) Å; slippage = 1.899 Å], forming sheets lying parallel to (100).

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.

scholarly journals (2E)-3-(3-Nitrophenyl)-1-[4-(piperidin-1-yl)phenyl]prop-2-en-1-one

2012 ◽  
Vol 68 (4) ◽  
pp. o974-o974 ◽  
Author(s):  
Hoong-Kun Fun ◽  
Tze Shyang Chia ◽  
Prakash S. Nayak ◽  
B. Narayana ◽  
B. K. Sarojini
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Crystal Packing ◽  
Chair Conformation ◽  
Piperidine Ring ◽  
Dihedral Angles ◽  
Two Dimensional ◽  
Compound C ◽  
Centroid Distance ◽  
Benzene Rings

In the title compound, C20H20N2O3, the piperidine ring adopts a chair conformation and its mean plane forms dihedral angles of 19.63 (9) and 19.44 (9)°, respectively, with the benzene and the nitro-substituted benzene ring. The benzene and nitro-substituted benzene rings are almost coplanar and make a dihedral angle of 4.78 (8)°. In the crystal, molecules are linked by C—H...O hydrogen bonds into two-dimensional networks parallel to theabplane. The crystal packing is further stabilized by π–π interactions [maximum centroid–centroid distance = 3.7807 (12) Å].

scholarly journals N-(4-Chlorophenyl)-2,2-diphenylacetamide

2012 ◽  
Vol 68 (8) ◽  
pp. o2556-o2557
Author(s):  
Hoong-Kun Fun ◽  
Wan-Sin Loh ◽  
Prakash S Nayak ◽  
B. Narayana ◽  
B. K. Sarojini
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Dihedral Angles ◽  
Compound C ◽  
Benzene Rings ◽  
Ring Motif

In the title compound, C20H16ClNO, anS(6) ring motif is formedviaan intramolecular C—H...O hydrogen bond. The chloro-substituted benzene ring is almost perpendicular to the benzene rings, forming dihedral angles of 87.33 (9) and 88.69 (9)°. The dihedral angle between the benzene rings is 87.17 (9)°. In the crystal, molecules are linked into chains parallel to thecaxis by intermolecular N—H...O hydrogen bonds. The crystal packing also features weak C—H...π interactions involving the chloro-substituted ring.

scholarly journals 2-[3,5-Bis(4-methoxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl]-4,6-bis(4-methoxyphenyl)pyrimidine

2012 ◽  
Vol 68 (8) ◽  
pp. o2398-o2398 ◽  
Author(s):  
Rajni Kant ◽  
Vivek K. Gupta ◽  
Kamini Kapoor ◽  
S. Samshuddin ◽  
B. Narayana
Keyword(s):  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Pyrazole Ring ◽  
Pyrimidine Ring ◽  
Dihedral Angles ◽  
Maximum Deviation ◽  
Compound C ◽  
Centroid Distance ◽  
Benzene Rings

In the title compound, C35H32N4O4, the pyrazole ring forms a dihedral angle of 15.04 (8)° with the adjacent pyrimidine ring. The pyrimidine ring forms dihedral angles of 9.95 (8) and 1.86 (7)° with its adjacent methoxy-substituted benzene rings, whereas the equivalent angles are 80.24 (9) and 11.55 (9)° for the pyrazole ring and its adjacent benzene rings. The crystal packing features π–π interactions, the centroid–centroid distance between the pyrimidine and methoxyphenyl rings being 3.604 (1) Å. The pyrazole ring is nearly planar, with a maximum deviation of 0.020 (3) Å for the –CH2– carbon.

scholarly journals N-Benzyl-2-hydroxyethanaminium cyanurate

2013 ◽  
Vol 69 (12) ◽  
pp. o1741-o1742 ◽  
Author(s):  
Carlos Abraham Contreras-Espejel ◽  
Marco A. García-Eleno ◽  
Ericka Santacruz-Juárez ◽  
Reyna Reyes-Martínez ◽  
David Morales-Morales
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Keto Form ◽  
Π Interactions ◽  
Compound C ◽  
Centroid Distance ◽  
Phenyl Rings ◽  
Hydrogen Bonded

In the cation of the title compound C9H14ON+·C3H2O3N3−, the benzylamine C—N bond subtends a dihedral angle of 78.3 (2)° with the phenyl ring. The cyanurate anion is in the usual keto-form and shows an r.m.s. deviation from planarity of 0.010 Å. In the crystal, the cyanurate anions form N—H...O hydrogen-bonded zigzag ribbons along [001]. These ribbons are crosslinked by the organocationsviaO—H...N and N—H...O hydrogen bonds, forming bilayers parallel to (010) which are held together along [010] by slipped π–π interactions between pairs of cyanurate anions [shortest contact distances C...C = 3.479 (2), O...N = 3.400 (2); centroid–centroid distance=4.5946 (9) Å] and between cyanurate and phenyl rings [centroid–centroid distance = 3.7924 (12) Å, ring–ring angle = 11.99 (10)°].

scholarly journals 4-[(3-Methoxyanilino)methylidene]-2-phenyl-1,3-oxazol-5(4H)-one

2012 ◽  
Vol 68 (4) ◽  
pp. o1008-o1008 ◽  
Author(s):  
Wan-Yun Huang ◽  
Ye Zhang ◽  
Kun Hu ◽  
Qing-Mei Lin ◽  
Xian-Xian Liu
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Maximum Deviation ◽  
Compound C ◽  
Centroid Distance ◽  
Benzene Rings ◽  
Oxazolone Ring

In the title compound, C17H14N2O3, the oxazolone ring is essentially planar [maximum deviation = 0.004 (1) Å] and is oriented with respect to the phenyl and benzene rings at 10.06 (9) and 5.63 (8)°, respectively; the dihedral angle between the phenyl ring and the benzene ring is 15.69 (8)°. In the crystal, N—H...O hydrogen bonds link the molecules into chains running along theaaxis. Neighbouring chains are interconnected by π–π stacking, the centroid–centroid distance being 3.6201 (9) Å.

scholarly journals 2-(4-Fluorophenyl)-5-iodo-3-phenylsulfinyl-1-benzofuran

2012 ◽  
Vol 68 (4) ◽  
pp. o1237-o1237 ◽  
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Interplanar Distance ◽  
Dihedral Angles ◽  
Compound C ◽  
Centroid Distance ◽  
Benzene Rings ◽  
Phenyl Rings ◽  
The Mean

In the title compound, C20H12FIO2S, the dihedral angles between the mean plane [r.m.s. deviation = 0.014 (1) Å] of the benzofuran fragment and the pendant 4-fluorophenyl and phenyl rings are 8.0 (1) and 86.06 (6)°, respectively. In the crystal, molecules are linked by weak C—H...O hydrogen bonds. The crystal structure also exhibits weak π–π interactions between the furan and benzene rings of neighbouring molecules [centroid–centroid distance = 3.547 (2) Å, interplanar distance = 3.397 (2) Å and slippage = 1.021 (2) Å].

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