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.

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 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 4-chloro-N-[2-(piperidin-1-yl)ethyl]benzamide monohydrate

2015 ◽  
Vol 71 (1) ◽  
pp. o39-o40 ◽  
Author(s):  
K. Prathebha ◽  
D. Reuben Jonathan ◽  
B. K Revathi ◽  
S. Sathya ◽  
G. Usha
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Chair Conformation ◽  
Piperidine Ring ◽  
Compound C ◽  
The Mean

In the title compound, C14H19ClN2O2·H2O, the piperdine ring adopts a chair conformation. The dihedral angle between the mean plane of the piperidine ring and that of the phenyl ring is 41.64 (1)°. In the crystal, molecules are linked by O—H...N, N—H...O and C—H...O hydrogen bonds involving the water molecule, forming double-stranded chains propagating along [010].

scholarly journals Crystal structure of 2-amino-N-(2-fluorophenyl)-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxamide

2015 ◽  
Vol 71 (11) ◽  
pp. o807-o808
Author(s):  
K. Chandra Kumar ◽  
V. Umesh ◽  
T. K. Madhura ◽  
B. M. Rajesh ◽  
Chandra
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Molecular Conformation ◽  
Chair Conformation ◽  
Ring System ◽  
Membered Ring ◽  
Compound C

In the title compound, C15H15FN2OS, the dihedral angle between the planes of the benzothiophene ring system and the fluorobenzene ring is 3.74 (14)°. The six-membered ring of the benzothiophene moiety adopts a half-chair conformation. The molecular conformation is consolidated by intramolecular N—H...F and N—H...O hydrogen bonds. In the crystal, molecules are linked by N—H...O hydrogen bonds, generatingC(6) [001] chains.

scholarly journals Crystal structure of 4-cyclohexyl-1-(propan-2-ylidene)thiosemicarbazide

2014 ◽  
Vol 70 (10) ◽  
pp. o1109-o1109 ◽  
Author(s):  
Bohari M Yamin ◽  
Monica Lulo Rodis ◽  
Dayang N. B. A Chee
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Chair Conformation ◽  
Compound C ◽  
Cyclohexyl Group

In the title compound, C10H19N3S, the cyclohexyl group adopts a chair conformation and adopts a position approximatelysynto the thione S atom. The CN2S thiourea moiety makes dihedral angle of 13.13 (10)° with the propan-2-ylideneamino group. An intramolecular N—H...N hydrogen bond is noted. In the crystal, inversion dimers linked by pairs of N—H...S hydrogen bonds generateR22(8) loops.

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 4-chloro-N-{[1-(4-chlorobenzoyl)piperidin-4-yl]methyl}benzamide monohydrate

2014 ◽  
Vol 70 (10) ◽  
pp. o1080-o1080
Author(s):  
K. Prathebha ◽  
D. Reuben Jonathan ◽  
S. Sathya ◽  
J. Jovita ◽  
G. Usha
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Chair Conformation ◽  
Piperidine Ring ◽  
Compound C ◽  
Sheet Structure ◽  
Benzene Rings

In the title compound, C20H20Cl2N2O2·H2O, the piperidine ring adopts a chair conformation with the two substituent benzene rings inclined to one another [dihedral angle 84.63 (9)°]. In the crystal, the components are linked by Ow—H...O, N—H...Ow (w = water) and C—H...O hydrogen bonds, generating a sheet structure lying parallel to (101).

scholarly journals Crystal structure of 3-methyl-2,6-bis(4-methyl-1,3-thiazol-5-yl)piperidin-4-one

2014 ◽  
Vol 70 (9) ◽  
pp. o1055-o1055
Author(s):  
A. Manimaran ◽  
K. Sethusankar ◽  
S. Ganesan ◽  
S. Ananthan
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Chair Conformation ◽  
Methyl Group ◽  
Compound C ◽  
The Mean

In the title compound, C14H17N3OS2, the central piperidinone ring adopts a chair conformation and the thiazole rings are inclined to its mean plane by 80.16 (12) and 67.15 (12)°. The O atom and methyl group C atom deviate significantly from the mean plane of the central piperidinone ring, by 0.8138 (2) and 0.3175 (2) Å, respectively. The dihedral angle between the thiazole rings is 51.88 (13)°. In the crystal, molecules are linkedviaC—H...O hydrogen bonds, forming zigzagC(10) chains running parallel to [001].

Sign in / Sign up

Export Citation Format

Share Document