scholarly journals 2,6-Diamino-4-(4-chlorophenyl)-1-methyl-1,4-dihydropyridine-3,5-dicarbonitrile

2014 ◽  
Vol 70 (7) ◽  
pp. o812-o813 ◽  
Author(s):  
Michael Purushothaman ◽  
Kaliyaperumal Thanigaimani ◽  
Suhana Arshad ◽  
Sekar Silambarasan ◽  
Ibrahim Abdul Razak ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Boat Conformation ◽  
Compound C ◽  
Dihydropyridine Ring

In the title compound, C14H12ClN5, the dihydropyridine ring adopts a shallow boat conformation. The dihedral angle between the plane of this ring and that of the chlorobenzene ring is 69.15 (15)°. In the crystal, molecules are linked by N—H...N and N—H...Cl hydrogen bonds, generating (001) sheets.

scholarly journals Diethyl 4-(1H-imidazol-2-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate

IUCrData ◽  
2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Miri Yoo ◽  
Dongsoo Koh
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Axial Orientation ◽  
Boat Conformation ◽  
Axis Direction ◽  
Compound C ◽  
Graph Set ◽  
Dihydropyridine Ring

In the title compound, C16H21N3O4, the 1,4-dihydropyridine ring adopts a flattened boat conformation, with the imidazole substituent in an axial orientation [dihedral angle between ring planes = 82.9 (6)°]. In the crystal structure, pairs of N—H...O and N—H...N hydrogen bonds with graph-set notation R 2 2(14) connect the molecules into chains running along the c-axis direction.

scholarly journals Diethyl 4-(3-ethoxy-4-hydroxyphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate

IUCrData ◽  
2017 ◽  
Vol 2 (7) ◽  
Author(s):  
N. L. Prasad ◽  
Noor Shahina Begum
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Three Dimensional ◽  
Axial Orientation ◽  
Boat Conformation ◽  
Stacking Interactions ◽  
Compound C ◽  
Dimensional Network ◽  
Dihydropyridine Ring

In the title compound, C21H27NO6, the 1,4-dihydropyridine ring adopts a shallow boat conformation, with the 3-ethoxy-4-hydroxyphenyl substituent in an axial orientation [dihedral angle between ring planes = 85.49 (12)°]. In the crystal, N—H...O and O—H...O hydrogen bonds link the molecules into (001) sheets. The packing is consolidated by C—H...O and π–π stacking interactions, which leads to a three-dimensional network.

scholarly journals 2-Amino-6-{[(6-chloropyridin-3-yl)methyl](ethyl)amino}-1-methyl-5-nitro-4-phenyl-1,4-dihydropyridine-3-carbonitrile ethanol monosolvate

2012 ◽  
Vol 68 (4) ◽  
pp. o1146-o1146
Author(s):  
Chuan-Wen Sun ◽  
Yan-Xia Chen ◽  
Tian-Yan Liu
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Crystal Packing ◽  
Boat Conformation ◽  
Methyl Ethyl ◽  
Compound C ◽  
Dihydropyridine Ring

In the title compound, C21H21ClN6O2·C2H6O, a member of the insecticidal active neonicotinoid group of compounds, the 1,4-dihydropyridine ring adopts a boat conformation. An intramolecular C—H...O hydrogen bond occurs while the components are linked by an N—H...O interaction. The crystal packing is stablized by O—H...N hydrogen bonds and C—H...O interactions.

scholarly journals Diethyl 4-(biphenyl-4-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate

2014 ◽  
Vol 70 (7) ◽  
pp. o791-o792 ◽  
Author(s):  
Scott A. Steiger ◽  
Anthony J. Monacelli ◽  
Chun Li ◽  
Janet L. Hunting ◽  
Nicholas R. Natale
Keyword(s):  
Hydrogen Bonds ◽  
Intermolecular Interaction ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Three Dimensional ◽  
Compound C ◽  
Dimensional Network ◽  
Phenyl Rings ◽  
Dihydropyridine Ring

The title compound, C25H27NO4, has a flattened dihydropyridine ring. The benzene and phenyl rings are synclinal to one another, forming a dihedral angle of 49.82 (8)°; the axis of the biphenyl rings makes an 81.05 (9)° angle to the plane of the dihydropyridine ring. In the crystal, N—H...O hydrogen bonds link the molecules into chain motifs running along thea-axis direction. The chains are cross-linked by C—H...O interactions, forming sheet motifs running slightly off the (110) plane, together with an intermolecular interaction between head-to tail biphenyl groups, thus making the whole crystal packing a three-dimensional network. Intramolecular C—H...O hydrogen bonds are also observed.

2,4,4-Trimethyl-N-phenyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine-1-carboxamide

2007 ◽  
Vol 63 (11) ◽  
pp. o4264-o4264 ◽  
Author(s):  
A Thiruvalluvar ◽  
S Ponnuswamy
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Boat Conformation ◽  
Equatorial Orientation ◽  
Methyl Group ◽  
Compound C ◽  
Benzene Rings

In the title compound, C19H23N3O, the seven-membered diazepine ring adopts a boat conformation. The phenylcarbamoyl group is coplanar with the N atom and its two attached C atoms. The methyl group at position 2 has an equatorial orientation. The dihedral angle between the two benzene rings is 81.07 (9)°. The crystal structure is stabilized by intramolecular C—H...O and intermolecular N—H...O hydrogen bonds.

scholarly journals Crystal structure of 3-amino-1-(4-hydroxyphenyl)-1H-benzo[f]chromene-2-carbonitrile

2015 ◽  
Vol 71 (8) ◽  
pp. o536-o537
Author(s):  
Mehmet Akkurt ◽  
Peter N. Horton ◽  
Sabry H. H. Younes ◽  
Shaaban K. Mohamed ◽  
Mustafa R. Albayati
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Boat Conformation ◽  
Naphthalene Ring ◽  
Pyran Ring ◽  
Compound C ◽  
The Mean

In the title compound, C20H14N2O2, the hydroxybenzene ring is almost perpendicular to the mean plane of the naphthalene ring system, making a dihedral angle of 85.56 (4)°. The 4H-pyran ring fused with the naphthalene ring system has a flattened boat conformation. In the crystal, O—H...N and N—H...O hydrogen bonds link the molecules into a supramolecular layer in thebcplane; N—H...π interactions also contribute to this arrangement. The layers are linked by weak by C—H...π and π–π [inter-centroid separation = 3.8713 (7) Å] interactions.

scholarly journals 9-[3-(Dimethylamino)propyl]-10,10-dimethyl-9,10-dihydroanthracen-9-ol

2013 ◽  
Vol 69 (2) ◽  
pp. o175-o175
Author(s):  
Manpreet Kaur ◽  
Ray J. Butcher ◽  
Mehmet Akkurt ◽  
H. S. Yathirajan ◽  
B. Nagaraj
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Boat Conformation ◽  
Asymmetric Unit ◽  
Aromatic Rings ◽  
Central Ring ◽  
Π Interactions ◽  
Compound C ◽  
Benzene Rings

The asymmetric unit of the title compound, C21H27NO, contains two molecules (AandB). In moleculeA, the central ring of the anthrone unit adopts a shallow boat conformation and the dihedral angle between the benzene rings is 18.96 (7)°. In moleculeB, the central ring is close to being planar (r.m.s. deviation = 0.078 Å) and the dihedral angle between the aromatic rings is 7.82 (7)°. In the crystal, molecules are linked by O—H...N hydrogen bonds, forming zigzagC(7) chains of alternatingAandBmolecules running parallel to [100]. The structure also features weak C—H...O and C—H...π interactions.

scholarly journals Crystal structure of 5,11-dihydropyrido[2,3-b][1,4]benzodiazepin-6-one

2015 ◽  
Vol 71 (5) ◽  
pp. o304-o305 ◽  
Author(s):  
Noura M. Riad ◽  
Darius P. Zlotos ◽  
Ulrike Holzgrabe
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Receptor Antagonist ◽  
Dihedral Angle ◽  
Title Compound ◽  
Membered Ring ◽  
Boat Conformation ◽  
Aromatic Rings ◽  
Compound C

The title compound, C12H9N3O, is an intermediate in the synthesis of the muscarinic M2 receptor antagonist AFDX-384. The seven-membered ring adopts a boat conformation and the dihedral angle between the planes of the aromatic rings is 41.51 (9)°. In the crystal, molecules are linked into [001] chains of alternating inversion dimers formed by pairs of N—H...O hydrogen bonds and pairs of N—H...N hydrogen bonds. In both cases,R22(8) loops are generated.

scholarly journals Crystal structure ofrac-3-hydroxy-2-(p-tolyl)-2,3,3a,4,7,7a-hexahydro-1H-4,7-methanoisoindol-1-one

2015 ◽  
Vol 71 (3) ◽  
pp. o143-o144
Author(s):  
Mehmet Aslantaş ◽  
Cumali Çelik ◽  
Ömer Çelik ◽  
Arzu Karayel
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Boat Conformation ◽  
Π Interactions ◽  
Compound C ◽  
Cyclohexene Ring

In the title compound, C16H17NO2, the cyclohexene ring adopts a boat conformation, and the five-membered rings have envelope conformations with the bridging atom as the flap. Their mean planes are oriented at a dihedral angle of 86.51 (7)°. The molecular structure is stabilized by a short intramolecular C—H...O contact. In the crystal, molecules are linked by O—H...O hydrogen bonds forming chains propagating along [100]. The chains are linked by C—H...π interactions, forming slabs parallel to (001).

scholarly journals Crystal structure of (Z)-2-benzylidene-4-methyl-2H-benzo[b][1,4]thiazin-3(4H)-one

2015 ◽  
Vol 71 (11) ◽  
pp. o862-o863 ◽  
Author(s):  
Mohamed Ellouz ◽  
Nada Kheira Sebbar ◽  
El Mokhtar Essassi ◽  
Mohamed Saadi ◽  
Lahcen El Ammari
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Boat Conformation ◽  
Compound C ◽  
Thiazine Ring

In the title compound, C16H13NOS, the 1,4-thiazine ring displays a screw-boat conformation. The conformation about the ethene bond [1.344 (2) Å] isZ. The plane of the fused benzene ring makes a dihedral angle of 58.95 (9)° with the pendent phenyl ring, indicating a twisted conformation in the molecule. In the crystal, molecules are linked by pairs of C—H...O hydrogen bonds, forming inversion dimers.

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