scholarly journals 1-Benzyl-3′-[(1H-indol-3-yl)carbonyl]-1′-methyl-2-oxo-4′-(pyridin-3-yl)spiro[indoline-3,2′-pyrrolidine]-3′-carbonitrile

IUCrData ◽  
2016 ◽  
Vol 1 (11) ◽  
Author(s):  
P. Seethalakshmi ◽  
C. Palanivel
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Pyrrolidine Ring ◽  
Ring Systems ◽  
Envelope Conformation ◽  
Compound C ◽  
The Mean

In the title compound, C34H27N5O2, the central pyrrolidine ring adopts an envelope conformation, with the N atom as the flap. The mean planes of the two indoline ring systems are inclined to the mean plane of the central pyrrolidine ring by 86.26 (9) and 69.30 (9)°, respectively. The dihedral angle between the benzene and pyridine rings is 75.09 (11)°. In the crystal, molecules are linked by N—H...N and C—H...N hydrogen bonds, forming sheets parallel to theabplane.

scholarly journals Crystal structure of ethyl 1′,1′′-dimethyl-2′′,3-dioxo-3H-dispiro[benzo[b]thiophene-2,3′-pyrrolidine-2′,3′′-indoline]-4′-carboxylate

2015 ◽  
Vol 71 (3) ◽  
pp. o142-o142
Author(s):  
M. P. Savithri ◽  
M. Suresh ◽  
R. Raghunathan ◽  
R. Raja ◽  
A. SubbiahPandi
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Ring System ◽  
Pyrrolidine Ring ◽  
Ring Systems ◽  
Envelope Conformation ◽  
Compound C ◽  
The Mean

In the title compound, C23H22N2O4S, the pyrrolidine ring has an envelope conformation with the spiro C atom, shared with the indoline ring system, as the flap. The mean planes of the benzothiophene and indoline ring systems are inclined to the mean plane of the pyrrolidine ring by 88.81 (8) and 79.48 (8)°, respectively, and to each other by 68.12 (5)°. In the crystal, molecules are linkedviaC—H...O hydrogen bonds, forming chains propagating along [001].

scholarly journals Pyrrolidin-1-ium 2-(naphthalen-1-yl)acetate–2-(naphthalen-1-yl)acetic acid (1/1)

2012 ◽  
Vol 68 (4) ◽  
pp. o1113-o1113
Author(s):  
Zhao Hong ◽  
Fu-Jun Yin ◽  
Xing-You Xu ◽  
Li-Jun Han ◽  
Li Ren
Keyword(s):  
Crystal Structure ◽  
Acetic Acid ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Naphthalene Ring ◽  
Pyrrolidine Ring ◽  
Ring Systems ◽  
Envelope Conformation ◽  
Compound C

In the title compound, C4H10N+·C12H9O2−·C12H10O2, the pyrrolidine ring adopts an envelope conformation and the dihedral angle between the planes of the two naphthalene ring systems is 8.34 (10)°. The crystal structure is stabilized by O—H...O and N—H...O hydrogen bonds.

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 2,5-Dioxopyrrolidin-1-yl 2-methylprop-2-enoate

2014 ◽  
Vol 70 (4) ◽  
pp. o446-o446
Author(s):  
Wayne H. Pearson ◽  
Shirley Lin ◽  
Lyle Isaacs
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Pyrrolidine Ring ◽  
Compound C ◽  
The Mean

In the title compound, C8H9NO4, the pyrrolidine ring (r.m.s. deviation 0.014 Å) is almost normal to the mean plane of the propenoate group (r.m.s deviation 0.028 Å), making a dihedral angle of 86.58 (4)°. In the crystal, molecules are linkedviapairs of weak C—H...O hydrogen bonds, forming inversion dimers which stack along the c axis.

scholarly journals Crystal structure of 4-(4b,8a-dihydro-9H-pyrido[3,4-b]indol-1-yl)-7-methyl-2H-chromen-2-one

2017 ◽  
Vol 73 (1) ◽  
pp. 56-58 ◽  
Author(s):  
S. Samundeeswari ◽  
Manohar V. Kulkarni ◽  
G. N. Anil Kumar
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring Systems ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
The Mean

The title compound, C21H14N2O2, was prepared by Pictet–Spengler cyclization of tryptamine and 4-formyl coumarin. In the molecule, the dihedral angle between the mean planes of the coumarin and β-carboline ring systems is 63.8 (2)°. In the crystal, molecules are linkedviaN—H...N hydrogen bonds, forming chains along theb-axis direction. Within the chains, there are a number of offset π–π interactions present [shortest intercentroid distance = 3.457 (2) Å].

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

2017 ◽  
Vol 73 (12) ◽  
pp. 1956-1958
Author(s):  
Hong-Shun Sun ◽  
Yu-Long Li ◽  
Hong Jiang ◽  
Yu-Liang Chen ◽  
Ya-Di Hu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Indole Ring ◽  
Ring Systems ◽  
Compound C ◽  
The Mean ◽  
Supramolecular Chains

In the title compound, C29H25N3O6, the mean planes of the two indole ring systems (r.m.s. deviations = 0.0115 and 0.0082 Å) are approximately perpendicular to one another, making a dihedral angle of 89.7 (5)°; the benzene ring is twisted with respect to the two indole ring systems by 52.6 (4) and 88.2 (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 along theb-axis direction. Weak C—H...O hydrogen bonds and C—H...π interactions are also observed in the crystal.

scholarly journals 8,8-Dimethyl-8,9-dihydro-7H-chromeno[2,3-b]quinoline-10,12-dione

2013 ◽  
Vol 69 (2) ◽  
pp. o254-o254
Author(s):  
Thothadri Srinivasan ◽  
Panneerselvam Yuvaraj ◽  
Boreddy S. R. Reddy ◽  
Devadasan Velmurugan
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Maximum Deviation ◽  
Envelope Conformation ◽  
Compound C ◽  
The Mean

In the title compound, C18H15NO3, the fused benzopyran and pyridine rings are essentially coplanar [r.m.s. deviation = 0.0533 Å with a maximum deviation of 0.080 (1) Å for a benzene C atom]. The cyclohexanone ring adopts an envelope conformation with the dimethyl-substituted C atom 0.660 (2) Å out of the plane formed by the remaining ring atoms (r.m.s. deviation = 0.0305 Å). The dihedral angle between the mean planes of the pyran and cyclohexanone rings is 12.95 (6)°. In the crystal, molecules are linkedviaC—H...O hydrogen bonds, leading to chains running along [011].

scholarly journals 3-(4-Bromophenylsulfonyl)-5-cyclopentyl-2-methyl-1-benzofuran

2012 ◽  
Vol 68 (6) ◽  
pp. o1624-o1624 ◽  
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Mean Deviation ◽  
Envelope Conformation ◽  
Compound C ◽  
The Mean

In the title compound, C20H19BrO3S, the cyclopentyl ring adopts an envelope conformation. The 4-bromophenyl ring makes a dihedral angle of 82.09 (6)° with the mean plane [mean deviation = 0.026 (2) Å] of the benzofuran fragment. In the crystal, molecules are linked by weak C—H...O hydrogen bonds and Br...O contacts [3.309 (2) Å].

scholarly journals (3aR,6R)-3,3,6-Trimethyl-3,3a,4,5,6,7-hexahydro-2H-indazole-2-carbothioamide

IUCrData ◽  
2016 ◽  
Vol 1 (4) ◽  
Author(s):  
Abdellah N'Ait Ousidi ◽  
My Youssef Ait Itto ◽  
Aziz Auhmani ◽  
Abdelkhalek Riahi ◽  
Sylviane Chevreux ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Acidic Medium ◽  
Chair Conformation ◽  
Membered Ring ◽  
Envelope Conformation ◽  
Compound C ◽  
The Mean

The title compound, C11H19N3S, was prepared by the reaction of (R)-pulegone with thiosemicarbazide in acidic medium, using ethanol as solvent. The molecule is built up from fused six and five-membered rings. The six-membered ring adopts a chair conformation, while the five-membered ring displays an envelope conformation with the dimethyl-substituted C atom as the flap. The dihedral angle between the mean planes of the two rings is 20.35 (6)°. In the crystal, molecules are linked by N—H...N and N—H...S hydrogen bonds into chains running parallel to [100].

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