scholarly journals Crystal structure of 1-methanesulfonyl-1,2,3,4-tetrahydroquinoline

2015 ◽  
Vol 71 (1) ◽  
pp. o20-o20 ◽  
Author(s):  
S. Jeyaseelan ◽  
S. L. Nagendra Babu ◽  
G. Venkateshappa ◽  
P. Raghavendra Kumar ◽  
B. S. Palakshamurthy
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Bond Angle ◽  
Chair Conformation ◽  
Heterocyclic Ring ◽  
Compound C

In the title compound, C10H13NO2S, the heterocyclic ring adopts a half-chair conformation and the bond-angle sum at the N atom is 347.9°. In the crystal, inversion dimers linked by pairs of C—H...O hydrogen bonds generateR22(8) loops.

scholarly journals Crystal structure of 1-tosyl-1,2,3,4-tetrahydroquinoline

2014 ◽  
Vol 70 (11) ◽  
pp. o1176-o1176 ◽  
Author(s):  
S. Jeyaseelan ◽  
K.V. Asha ◽  
G. Venkateshappa ◽  
P. Raghavendrakumar ◽  
B.S. Palakshamurthy
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Bond Angle ◽  
Chair Conformation ◽  
Heterocyclic Ring ◽  
Aromatic Rings ◽  
Compound C

In the title compound, C16H17NO2S, the heterocyclic ring adopts a half-chair conformation and the bond-angle sum at the N atom is 350.2°. The dihedral angle between the planes of the aromatic rings is 47.74 (10)°. In the crystal, molecules are linked by C—H...O hydrogen bonds to generate [010] chains.

scholarly journals Crystal structure of 1-benzylsulfonyl-1,2,3,4-tetrahydroquinoline

2015 ◽  
Vol 71 (4) ◽  
pp. o249-o250 ◽  
Author(s):  
S. Jeyaseelan ◽  
B. R. Sowmya ◽  
G. Venkateshappa ◽  
P. Raghavendra Kumar ◽  
B. S. Palakshamurthy
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Bond Angle ◽  
Chair Conformation ◽  
Heterocyclic Ring ◽  
Aromatic Rings ◽  
Compound C

In the title compound, C16H17NO2S, the heterocyclic ring adopts a half-chair conformation and the bond-angle sum at the N atom is 354.6°. The dihedral angle between the planes of the aromatic rings is 74.15 (10)°. In the crystal, molecules are linked by weak C—H...O hydrogen bonds, generatingC(8) andC(4) chains propagating along [100] and [010], respectively, which together generate (001) sheets.

scholarly journals Crystal structure of 2,2-dichloro-1-(piperidin-1-yl)ethanone

2015 ◽  
Vol 71 (1) ◽  
pp. o47-o47
Author(s):  
Markus Schwierz ◽  
Helmar Görls ◽  
Wolfgang Imhof
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Carbonyl Group ◽  
Title Compound ◽  
Bond Angle ◽  
Chair Conformation ◽  
Piperidine Ring ◽  
Compound C

In the title compound, C7H11Cl2NO, the piperidine ring shows a chair conformation and the bond-angle sum at the N atom is 359.9°. The H atom of the dichloromethyl group is in an eclipsed conformation with respect to the carbonyl group (H—C—C=O = −5°). In the crystal, inversion dimers are linked by pairs of C—H...O hydrogen bonds between the dichloromethyl group and the carbonyl O atom, which generateR22(8) loops. The dimers are linked into a ladder-like structure propagating in the [100] direction by short O...Cl [3.1084 (9) Å] contacts.

scholarly journals Crystal structure of 2-methylsulfanyl-1-(thiomorpholin-4-yl)ethanone

2015 ◽  
Vol 71 (9) ◽  
pp. o679-o679 ◽  
Author(s):  
Gihaeng Kang ◽  
Jineun Kim ◽  
Eunjin Kwon ◽  
Tae Ho Kim
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Bond Angle ◽  
Chair Conformation ◽  
Amide Group ◽  
Two Dimensional ◽  
Compound C

In the title compound, C7H13NOS2, the thiomorpholine ring adopts a chair conformation and the bond-angle sum at the N atom is 360°. The dihedral angle between the amide group and the thiomorpholine ring (all atoms) is 36.48 (12)°. In the crystal, C—H...O and C—H...S hydrogen bonds link adjacent molecules, forming two-dimensional networks extending parellel to the (011) plane.

scholarly journals Crystal structure of 1-[(6-chloropyridin-3-yl)sulfonyl]-1,2,3,4-tetrahydroquinoline

2015 ◽  
Vol 71 (6) ◽  
pp. 660-662
Author(s):  
S. Jeyaseelan ◽  
H. R. Rajegowda ◽  
R. Britto Dominic Rayan ◽  
P. Raghavendra Kumar ◽  
B. S. Palakshamurthy
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Least Squares ◽  
Dihedral Angle ◽  
Title Compound ◽  
Bond Angle ◽  
Chair Conformation ◽  
Aromatic Rings ◽  
Compound C

The tetrahydropyridine ring of the quinoline system in the title compound, C14H13ClN2O2S, adopts a half-chair conformation with the bond-angle sum at the N atom being 350.0°. The dihedral angle between the least-squares planes of the two aromatic rings is 50.13 (11)°. In the crystal, inversion dimers linked by pairs of C—H...O hydrogen bonds generateR22(10) loops. Additional intermolecular C—H...O hydrogen bonds generateC(7) chains along [100].

scholarly journals Crystal structure of 2-cyano-N′-(cyclohexylidene)acetohydrazide

2014 ◽  
Vol 70 (9) ◽  
pp. o886-o886
Author(s):  
William T. A. Harrison ◽  
Ola K. Al-Sakka ◽  
Daisy H. Fleita ◽  
Amina Saleh ◽  
Sara Salem
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Bond Angle ◽  
Chair Conformation ◽  
Compound C ◽  
Dimer Linkage

In the title compound, C9H13N3O, the cyclohexylidene ring adopts a chair conformation and the bond-angle sum at the C atom linked to the N atom is 359.6°. The cyanoacetohydrazide grouping is close to planar (r.m.s. deviation for the non-H atoms = 0.031 Å) and subtends a dihedral angle of 64.08 (4)° with the four C atoms forming the seat of the chair. The C=O and N—H groups are in asynconformation (O—C—N—H = −5°). In the crystal, inversion dimers linked by pairs of N—H...O hydrogen bonds generateR22(8) loops; this dimer linkage is reinforced by a pair of C—H...O interactions, which generateR22(14) loops. The dimers are linked by C—H...Nc(c = cyanide) interactions into [100] ladders, which featureC(4) chains andR44(20) loops.

(3R,4R)-(–)-3-Hydroxymethyl-4-phenyl-2-o-toluoyl-1,2,3,4-tetrahydroisoquinoline

2006 ◽  
Vol 62 (5) ◽  
pp. o1774-o1776 ◽  
Author(s):  
Andrzej Gzella ◽  
Maria Chrzanowska ◽  
Agnieszka Dreas ◽  
Michał S. Kaczmarek ◽  
Zenon Woźniak
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Absolute Configuration ◽  
Title Compound ◽  
Phenyl Ring ◽  
Heterocyclic Ring ◽  
Hydroxymethyl Group ◽  
Envelope Conformation ◽  
Compound C ◽  
The Absolute

The absolute configuration of the title compound, C24H23NO2, has been confirmed as 3R,4R. The hydroxymethyl group and phenyl ring at the asymmetric C atoms exhibit α and β orientations, respectively, and the non-planar heterocyclic ring of the tetrahydroisoquinoline system adopts an envelope conformation. The crystal structure is stabilized through hydrogen bonds.

scholarly journals Crystal structure ofcis-1-(2-methyl-1,2,3,4-tetrahydroquinolin-4-yl)azepan-2-one

2014 ◽  
Vol 70 (9) ◽  
pp. o981-o982 ◽  
Author(s):  
P. S. Pradeep ◽  
S. Naveen ◽  
M. N. Kumara ◽  
K. M. Mahadevan ◽  
N. K. Lokanath
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Chair Conformation ◽  
Compound C ◽  
Supramolecular Chains

In the title compound, C16H22N2O, the azepan-2-one ring adopts a chair conformation, while the 1,2,3,4-tetrahydropyridine ring adopts a half-chair conformation. In the crystal, molecules are linked by N—H...O hydrogen bonds, forming supramolecular chains propagated along [10-1], with weak C—H...O interactions occurring between the chains.

scholarly journals Crystal structure of racemic [(1R,2S,3R,4S,6S)-2,6-bis(furan-2-yl)-4-hydroxy-4-(thiophen-2-yl)cyclohexane-1,3-diyl]bis(thiophen-2-ylmethanone)

2016 ◽  
Vol 72 (7) ◽  
pp. 976-979 ◽  
Author(s):  
Ísmail Çelik ◽  
Cem Cüneyt Ersanlı ◽  
Mehmet Akkurt ◽  
Hayrettin Gezegen ◽  
Rahmi Köseoğlu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Hydroxy Group ◽  
Title Compound ◽  
Furan Ring ◽  
Chair Conformation ◽  
Cyclohexane Ring ◽  
Π Interactions ◽  
Compound C

In the title compound, C28H22O5S3, the central cyclohexane ring adopts a chair conformation. The atoms of the furan ring attached to the 6-position of the central cyclohexane ring are disordered over two sets of sites with occupancies of 0.832 (5) and 0.168 (5). The hydroxy group is disordered over two positions (at the 4- and 6-positions of the cyclohexane ring) in the ratio 0.832 (5):0.168 (5). In the crystal, molecules are linked by C—H...O hydrogen bonds and C—H...π interactions, forming layers parallel to (100).

4-Oxo-2,3,5,6-tetraphenylpiperidine-1-carbonitrile ethyl acetate hemisolvate

2006 ◽  
Vol 62 (4) ◽  
pp. o1295-o1297
Author(s):  
J. Suresh ◽  
V. P. Alex Raja ◽  
S. Natarajan ◽  
S. Perumal ◽  
A. Mostad ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Ethyl Acetate ◽  
Title Compound ◽  
Chair Conformation ◽  
Compound C ◽  
Phenyl Rings ◽  
Space Filler ◽  
Acetate Molecule

In the title compound, C30H24N2O·0.5C4H8O2, the piperidone ring adopts the chair conformation and all the phenyl rings are equatorially oriented. The ethyl acetate molecule is present as a space filler and does not participate in the hydrogen-bonding network. The crystal structure is stabilized through C—H...N and C—H...O hydrogen bonds. No significant C—H...π and π–π interactions are observed.

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