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 1-[(4-Methoxyphenyl)sulfonyl]-1H-indole-3-carbaldehyde

IUCrData ◽  
2016 ◽  
Vol 1 (1) ◽  
Author(s):  
E. A. Jithesh Babu ◽  
K. S. Vinay Kumar ◽  
Chandra ◽  
M. P. Sadashiva ◽  
M. Mahendra
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Indole Ring ◽  
Sulfonyl Group ◽  
Compound C ◽  
The Mean

In the molecule of the title compound, C16H13NO4S, the mean plane of the indole ring system and that of the methoxyphenyl ring, which are bridged by a sulfonyl group, are inclined at a dihedral angle of 88.98 (9)°. The crystal structure is stabilized by intermolecular C—H...O hydrogen bonds.

scholarly journals 9-Fluoro-2,4,4a,6-tetrahydrospiro[benzo[c]chromene-3,2′-[1,3]dioxolane]

IUCrData ◽  
2017 ◽  
Vol 2 (1) ◽  
Author(s):  
I. Ayswariya ◽  
P. Rajalakshmi ◽  
R.V. Krishnakumar ◽  
N. Srinivasan
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Chair Conformation ◽  
Ring System ◽  
Pyran Ring ◽  
Compound C ◽  
Cyclohexene Ring ◽  
The Mean ◽  
Chromene Ring

In the title compound, C15H15FO3, the dihedral angle between the mean plane through all the non-H atoms of the dioxolane ring with those of the rest of the atoms of the chromene ring system, including the substituent F atom, is 81.1 (1)°. The pyran ring has an envelope conformation with the O atom as the flap. The cyclohexene ring has a half-chair conformation, while the dioxolane ring has a twisted conformation on an –O—CH2– bond. In the crystal, molecules are linkedviaC—H...O hydrogen bonds, forming chains along [100]. The chains are linked by C—H...π interactions, involving the fluorobenzene ring, forming layers parallel to theacplane.

scholarly journals 4-Chloro-3-methylphenyl quinoline-2-carboxylate

2013 ◽  
Vol 69 (12) ◽  
pp. o1842-o1843 ◽  
Author(s):  
E. Fazal ◽  
Manpreet Kaur ◽  
B. S. Sudha ◽  
S. Nagarajan ◽  
Jerry P. Jasinski
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Stacking Interactions ◽  
Carboxylate Group ◽  
Quinoline Ring ◽  
Compound C ◽  
The Mean

In the title compound, C17H12ClNO2, the dihedral angle between the mean planes of the quinoline ring system and the benzene ring is 68.7 (7)°. The mean plane of the carboxylate group is twisted from the latter planes by 14.0 (1) and 80.2 (4)°, respectively. In the crystal, weak C—H...O interactions are observed, forming chains along [001]. In addition, π–π stacking interactions [centroid–centroid distances = 3.8343 (13) and 3.7372 (13)Å] occur. No classical hydrogen bonds were observed.

scholarly journals Propyl 2-(1H-indol-3-yl)acetate

2013 ◽  
Vol 69 (11) ◽  
pp. o1686-o1686
Author(s):  
Guo-Min Tang ◽  
Wei Xu
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Acetate Group ◽  
Maximum Deviation ◽  
Indole Ring ◽  
Compound C ◽  
The Mean

In the title compound, C13H15NO2, the acetate group [C—C(=O)—O] makes a dihedral angle of 62.35 (13)° with the mean plane of the indole ring system [maximum deviation = 0.011 (3) Å]. In the crystal, molecules are linked by N—H...O hydrogen bonds, forming helical chains propagating along [010].

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 3,4-Dimethylphenyl quinoline-2-carboxylate

2013 ◽  
Vol 69 (12) ◽  
pp. o1853-o1854 ◽  
Author(s):  
E. Fazal ◽  
Manpreet Kaur ◽  
B. S. Sudha ◽  
S. Nagarajan ◽  
Jerry P. Jasinski
Keyword(s):  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Crystal Packing ◽  
Ring System ◽  
Carboxylate Group ◽  
Quinoline Ring ◽  
Compound C ◽  
The Mean

In the title compound, C18H15NO2, the dihedral angle between the mean planes of the quinoline ring system and the phenyl ring is 48.1 (5)°. The mean plane of the carboxylate group is twisted from the mean planes of the latter by 19.8 (8) and 64.9 (5)°, respectively. The crystal packing features weak C—H...O interactions, which form chains along [010].

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 Diethyl 3,3′-[(3-fluorophenyl)methylene]bis(1H-indole-2-carboxylate)

IUCrData ◽  
2020 ◽  
Vol 5 (7) ◽  
Author(s):  
Hong Jiang ◽  
Yu-Long Li ◽  
Jin Zhou ◽  
Hong-Shun Sun ◽  
Qing-Yu Zhang ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Indole Ring ◽  
Ring Systems ◽  
Compound C ◽  
The Mean ◽  
Supramolecular Chains

In the title compound, C29H25FN2O4, the mean planes of the indole ring systems are approximately perpendicular to one another [dihedral angle = 88.3 (4)°]. The benzene ring is twisted with respect to the indole ring systems by 49.8 (5) and 77.6 (3)°. In the crystal, pairs of N—H...O hydrogen bonds link the molecules into the inversion dimers which are further linked into supramolecular chains propagating along the [110] direction.

scholarly journals Crystal structure of dimethyl 3,3′-[(4-fluorophenyl)methylene]bis(1H-indole-2-carboxylate)

2015 ◽  
Vol 71 (10) ◽  
pp. 1140-1142 ◽  
Author(s):  
Hong-Shun Sun ◽  
Yu-long Li ◽  
Hong Jiang ◽  
Ning Xu ◽  
Hong Xu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Indole Ring ◽  
Ring Systems ◽  
Π Interactions ◽  
Compound C ◽  
The Mean ◽  
Supramolecular Chains

In the title compound, C27H21FN2O4, the mean planes of the indole ring systems (r.m.s. deviations = 0.0263 and 0.0160 Å) are approximately perpendicular to one another, making a dihedral angle of 84.0 (5)°; the fluorobenzene ring is twisted with respect to the mean planes of the two indole ring systems at 89.5 (5) and 84.6 (3)°. In the crystal, pairs of N—H...O hydrogen bonds link the molecules into inversion dimers, which are further linked by N—H...O hydrogen bonds into supramolecular chains propagated along theb-axis direction. Weak C—H...π interactions are observed between neighbouring chains.

scholarly journals N-(1H-Indol-3-ylmethylidene)-4-methylpiperazin-1-amine

2013 ◽  
Vol 69 (11) ◽  
pp. o1706-o1706 ◽  
Author(s):  
Channappa N. Kavitha ◽  
Jerry P. Jasinski ◽  
Brian J. Anderson ◽  
H. S. Yathirajan ◽  
Manpreet Kaur
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Chair Conformation ◽  
Ring System ◽  
Indole Ring ◽  
Piperazine Ring ◽  
Compound C

In the title compound, C14H18N4, the piperazine ring is in a slightly distorted chair conformation. The indole ring system is twisted from the piperazine ring, making a dihedral angle of 7.27 (11)°. In the crystal, N—H...N hydrogen bonds link molecules into chains along [10-1].

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