scholarly journals (E)-2-Cyano-N′-(1,2,3,4-tetrahydronaphthalen-1-ylidene)acetohydrazide

2012 ◽  
Vol 68 (6) ◽  
pp. o1740-o1740
Author(s):  
Mohamed A. Al-Omar ◽  
Nagy M. Khalifa ◽  
Hazem A. Ghabbour ◽  
Tze Shyang Chia ◽  
Hoong-Kun Fun
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Ring System ◽  
Π Interactions ◽  
Envelope Conformation ◽  
Compound C ◽  
The Mean ◽  
A Chain

In the title compound, C13H13N3O, the tetrahydrobenzene ring adopts a half-boat (envelope) conformation. The mean plane of the tetrahydronaphthalene ring system forms a dihedral angle of 9.56 (6)° with the mean plane of the cyanoacetohydrazide group. In the crystal, inversion dimers linked by pairs of N—H...O hydrogen bonds generate R 2 2(8) loops. The dimers are connected by C—H...N hydrogen bonds into a chain propagating along [101]. The crystal packing also features C—H...π interactions.

scholarly journals 5-Bromo-1-(6-bromohexyl)indoline-2,3-dione

IUCrData ◽  
2016 ◽  
Vol 1 (6) ◽  
Author(s):  
Yassine Kharbach ◽  
Youssef Kandri Rodi ◽  
Amal Haoudi ◽  
El Mokhtar Essassi ◽  
Frédéric Capet ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Π Interactions ◽  
Compound C ◽  
Plane Passing ◽  
The Mean

In the title compound, C14H15Br2NO2, the dihedral angle between the mean plane passing through the bromohexyl chain and the 5-bromoindoline ring system (r.m.s. deviation = 0.044Å) is 70.0 (3)°. In the crystal, molecules are connected by C—H...O hydrogen bonds, generating zigzag chains propagating along [010]. The packing is also influenced by inter-chain π–π interactions which form layers parallel to theabplane [centroid–centroid distances = 3.765 (2) Å].

scholarly journals 2-Bromo-1-(1-phenylsulfonyl-1H-indol-3-yl)propan-1-one

2014 ◽  
Vol 70 (3) ◽  
pp. o295-o296
Author(s):  
C. Ramathilagam ◽  
P. R. Umarani ◽  
V. Saravanan ◽  
A. K. Mohanakrishnan ◽  
B. Gunasekaran ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Ring System ◽  
Indole Ring ◽  
Methyl Group ◽  
Π Interactions ◽  
Compound C ◽  
A Chain

In the title compound, C17H14BrNO3S, the phenyl ring makes a dihedral angle of 89.78 (16)° with the plane of the indole ring system. The terminal Br atom and the methyl group are disordered over two sets of sites, with site occupancies of 0.860 (2) and 0.140 (2). In the crystal, molecules are linked into a chain along theb-axis direction by weak C—H...O hydrogen bonds. The chains are further linked by C—H...π interactions, forming layers parallel to thebcplane.

scholarly journals 2-(4,5-Dimethoxy-2-nitrophenyl)-4-methoxy-9-phenylsulfonyl-9H-carbazole-3-carbaldehyde

2014 ◽  
Vol 70 (4) ◽  
pp. o424-o425 ◽  
Author(s):  
P. Narayanan ◽  
K. Sethusankar ◽  
Velu Saravanan ◽  
Arasambattu K. Mohanakrishnan
Keyword(s):  
Molecular Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Ring System ◽  
Maximum Deviation ◽  
Π Interactions ◽  
Compound C ◽  
Ring Motif

In the title compound, C28H22N2O8S, the carbazole ring system is roughly planar, with a maximum deviation of 0.084 (3) Å for the C atom connected to the 4,5-dimethoxy-2-nitrophenyl ring. The dihedral angle between the carbazole system and the dimethoxy-substituted nitrophenyl ring is 57.05 (10)°. The aldehyde C atom deviates by 0.164 (5) Å from its attached carbazole ring system. The molecular structure is stabilized by C—H...O interactions which generate twoS(6) and oneS(7) ring motif. In the crystal, molecules are linked by C—H...O hydrogen bonds, formingR33(15) ring motifs, which are further crosslinked byR32(19) ring motifs, resulting in (002) layers. The crystal packing also features C—H...π interactions.

scholarly journals 6-Bromo-2-(4-methoxyphenyl)-3-methyl-3H-imidazo[4,5-b]pyridine

IUCrData ◽  
2017 ◽  
Vol 2 (7) ◽  
Author(s):  
Selma Bourichi ◽  
Youssef Kandri Rodi ◽  
Jerry P. Jasinski ◽  
Manpreet Kaur ◽  
El Mestafa El Hadrami ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Pyridine Ring ◽  
Crystal Packing ◽  
Ring System ◽  
Stacking Interactions ◽  
Axis Direction ◽  
Compound C ◽  
The Mean

In the title compound, C14H12BrN3O, the dihedral angle between the mean planes of the imidazo[4,5-b]pyridine ring system and the methoxyphenyl ring is 41.53 (12)°. In the crystal, weak C—H...N hydrogen bonds link the molecules into chains along the c-axis direction. Weak π–π stacking interactions involving the imidazole and the methoxyphenyl rings further stabilize the crystal packing.

scholarly journals 3-(2-Bromophenylsulfonyl)-5-cyclohexyl-2-methyl-1-benzofuran

2014 ◽  
Vol 70 (3) ◽  
pp. o324-o324 ◽  
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Short Distance ◽  
Crystal Packing ◽  
Chair Conformation ◽  
Π Interactions ◽  
Compound C ◽  
The Mean

In the title compound, C21H21BrO3S, the cyclohexyl ring adopts a chair conformation. The dihedral angle between the mean planes of the benzofuran and 2-bromophenyl fragments is 82.47 (5)°. In the crystal, molecules related by inversion are paired into dimersviaC—H...π and π–π interactions, the latter are indicated by the short distance of 3.607 (3) Å between the centroids of the furan rings. Intermolecular C—H...O hydrogen bonds and short Br...O [3.280 (1) Å] contacts further consolidate the crystal packing.

scholarly journals 6-Cyanonaphthalen-2-yl 4-hexylbenzoate

2014 ◽  
Vol 70 (5) ◽  
pp. o620-o620 ◽  
Author(s):  
Md. Lutfor Rahman ◽  
H. T. Srinivasa ◽  
Mohd. Yusoff Mashitah ◽  
Huey Chong Kwong ◽  
Ching Kheng Quah
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Minor Component ◽  
Ring System ◽  
Naphthalene Ring ◽  
Π Interactions ◽  
Compound C

In the title compound, C24H23NO2, a whole molecule is disordered over two sets of sites with occupancies in a ratio of 0.692 (6):0.308 (6). In the major disorder component, the naphthalene ring system forms a dihedral angle of 68.6 (5)° with the benzene ring. The corresponding angle in the minor component is 81.6 (10)°. In the crystal, molecules are linked into chains propagating along theb-axis directionviaweak C—H...O hydrogen bonds. The crystal packing is further consolidated by weak C—H...π interactions.

scholarly journals 5-Fluoro-2-methyl-3-(3-methylphenylsulfonyl)-1-benzofuran

2014 ◽  
Vol 70 (4) ◽  
pp. o482-o482
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
Centroid Distance ◽  
Benzene Rings ◽  
The Mean

In the title compound, C16H13FO3S, the dihedral angle between the mean planes of the benzofuran ring system and the 3-methylphenyl ring is 80.96 (4)°. In the crystal, molecules are linkedviapairs of π–π interactions between furan and benzene rings, with centroid–centroid distances of 3.758 (1) and 3.771 (1) Å. A similar interaction is found between furan rings, with a centroid–centroid distance of 3.661 (1) Å between neighbouring molecules. The molecules stack along thea-axis direction. In addition, C—H...O and C—H...π hydrogen bonds are observed between inversion-related dimers.

scholarly journals 5-Cyclohexyl-2-methyl-3-(3-methylphenylsulfonyl)-1-benzofuran

2014 ◽  
Vol 70 (4) ◽  
pp. o494-o494
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Chair Conformation ◽  
Ring System ◽  
Π Interactions ◽  
Compound C ◽  
The Mean ◽  
Supramolecular Chains

In the title compound, C22H24O3S, the cyclohexyl ring adopts a chair conformation. The dihedral angle between the mean plane [r.m.s. deviation = 0.010 (1) Å] of the benzofuran ring system and the benzene ring is 81.78 (4)°. In the crystal, molecules are linkedviapairs of C—H...π interactions into inversion dimers. These dimers are further linked by C—H...π interactions into supramolecular chains running along theb-axis direction. In addition, C—H...O hydrogen bonds are observed between inversion-related dimers.

scholarly journals (4S)-3-Methyl-5,6,7,8-tetrahydro-4H-spiro[[1,2]oxazolo[5,4-b]quinoline-4,3′-indole]-2′,5-dione

2014 ◽  
Vol 70 (2) ◽  
pp. o168-o168 ◽  
Author(s):  
E. Govindan ◽  
P. S. Yuvaraj ◽  
B. S. R. Reddy ◽  
S. Bangaru Sudarsan Alwar ◽  
A. SubbiahPandi
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Quinoline Ring ◽  
Indole Ring ◽  
Envelope Conformation ◽  
Compound C ◽  
Cyclohexene Ring ◽  
The Mean

In the title compound, C18H15N3O3, the dihedral angle between the mean planes of the quinoline and indole ring systems [r.m.s. deviations = 0.189 (2) and 0.027 (2) Å, respectively] is 88.65 (5)°. The cyclohexene ring of the quinoline ring system adopts an envelope conformation with the central –CH2– C atom as the flap. In the crystal, molecules are linked by two pairs of N—H...O hydrogen bonds, forming inversion dimers, and enclosingR22(14) ring motifs. This arrangement results in the formation of chains propagating along [100].

scholarly journals 6-Bromo-2-(4-chlorophenyl)-3-methyl-3H-imidazo[4,5-b]pyridine

IUCrData ◽  
2016 ◽  
Vol 1 (5) ◽  
Author(s):  
Selma Bourichi ◽  
Youssef Kandri Rodi ◽  
Younes Ouzidan ◽  
Joel T. Mague ◽  
El Mokhtar Essassi ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Π Interactions ◽  
Compound C ◽  
Centroid Distance ◽  
Fused Ring ◽  
The Mean ◽  
Fused Ring System

In the title compound, C13H9BrClN3, the imidazopyridine fused-ring system is almost planar, with r.m.s. deviation of 0.006 (19) Å, and makes a dihedral angle of 29.32 (8)° with the mean plane of the 4-chlorophenyl group. In the crystal, C—H...N hydrogen bonds link the molecules into chains propagating in the [100] direction. Weak intermolecular π–π interactions between the five- and six-membered rings of the 3H-imidazo[4,5-b]pyridine moieties of neighbouring molecules [centroid–centroid distance = 3.8648 (12) Å] further consolidate the packing into layers parallel to theabplane.

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