scholarly journals Crystal structure of (E)-N-(3,4-dimethoxybenzylidene)morpholin-4-amine

2014 ◽  
Vol 70 (9) ◽  
pp. o935-o935 ◽  
Author(s):  
Sevim Türktekin Çelikesir ◽  
Mehmet Akkurt ◽  
Aliasghar Jarrahpour ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Least Squares ◽  
Title Compound ◽  
Chair Conformation ◽  
Screw Axis ◽  
Compound C ◽  
Axis Parallel ◽  
Morpholine Ring ◽  
Supramolecular Chains

In the title compound, C13H18N2O3, the benzene ring makes a dihedral angle of 17.19 (11)° with the least-squares plane formed by the four C atoms of the morpholine ring, which adopts a chair conformation. In the crystal, C—H...N hydrogen bonds link the molecules into supramolecular chains running along a 21screw axis parallel to theb-axis direction. Weak C—H...π interactions are also observed.

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 2-{[2-methoxy-5-(trifluoromethyl)phenyl]iminomethyl}-4-nitrophenol

2015 ◽  
Vol 71 (7) ◽  
pp. o466-o467 ◽  
Author(s):  
Nevzat Karadayı ◽  
Songül Şahin ◽  
Yavuz Köysal ◽  
Emine Coşkun ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Helical Chain ◽  
Screw Axis ◽  
Imine Group ◽  
Compound C ◽  
Benzene Rings ◽  
Axis Parallel

In the title compound, C15H11F3N2O4, the N=C bond of the central imine group adopts anEconformation. The dihedral angle between two benzene rings is 6.2 (2)°. There is an intramolecular bifurcated O—H...(N,O) hydrogen bond withS(6) andS(9) ring motifs. In the crystal, molecules are linked by C—H...O hydrogen bonds into a helical chain along the 31screw axis parallel toc. The –CF3group shows rotational disorder over two sites, with occupancies of 0.39 (2) and 0.61 (2).

scholarly journals Crystal structure of (Z)-7,8-dichloro-4-(2-oxopropylidene)-4,5-dihydro-1H-1,5-benzodiazepin-2(3H)-one

2015 ◽  
Vol 71 (12) ◽  
pp. o1059-o1060
Author(s):  
Sanae Lahmidi ◽  
Abdelhanine Essaghouani ◽  
El Mokhtar Essassi ◽  
Mohamed Saadi ◽  
Lahcen El Ammari
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Chair Conformation ◽  
Compound C ◽  
The Mean ◽  
Membered Heterocycle ◽  
Supramolecular Chains

In the title compound, C12H10Cl2N2O2, the seven-membered heterocycle displays a half-chair conformation. The mean plane through the oxopropylidene group makes a dihedral angle of 36.44 (9)° with the fused benzene ring. An intramolecular N—H...O hydrogen bond to close anS(6) loop is noted. An important feature of the molecular packing are N—H...O hydrogen bonds that lead to the formation of helical supramolecular chains along thebaxis.

scholarly journals Crystal structure of (7-fluoro-2-oxo-2H-chromen-4-yl)methyl morpholine-4-carbodithioate

2015 ◽  
Vol 71 (12) ◽  
pp. o928-o929
Author(s):  
B. R. Anitha ◽  
A. Thomas Gunaseelan ◽  
M. Vinduvahini ◽  
H. D. Kavitha ◽  
H. C. Devarajegowda
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Chair Conformation ◽  
Ring System ◽  
Stacking Interactions ◽  
Compound C ◽  
Centroid Distance ◽  
Morpholine Ring ◽  
Chromene Ring

In the title compound, C15H14FNO3S2, the 2H-chromene ring system is close to being planar (r.m.s. deviation = 0.024 Å) and the morpholine ring adopts a chair conformation. The dihedral angle between the 2H-chromene ring system and the morpholine ring (all atoms) is 88.21 (11)°. In the crystal, inversion dimers linked by pairs of very weak C—H...F hydrogen bonds generateR22(8) loops; C—H...O hydrogen bonds connect the dimers into [010] chains. Weak aromatic π–π stacking interactions between the pyran rings of the chromene systems [centroid–centroid distance = 3.6940 (16) Å] are also observed.

scholarly journals Crystal structure ofN-[(morpholin-4-yl)(thiophen-2-yl)methyl]benzamide

2015 ◽  
Vol 71 (7) ◽  
pp. o498-o499 ◽  
Author(s):  
S. Arun Prabhu ◽  
M. Suresh ◽  
A. Abdul Jameel ◽  
M. Syed Ali Padusha ◽  
B. Gunasekaran
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Thiophene Ring ◽  
Chair Conformation ◽  
Maximum Deviation ◽  
Minor Components ◽  
Compound C ◽  
The Mean ◽  
Morpholine Ring

In the title compound, C16H18N2O2S, the morpholine ring adopts a chair conformation. The thiophene ring makes a dihedral angle of 63.54 (14)° with the mean plane of the four C atoms [maximum deviation = 0.010 (3) Å] of the morpholine ring. The benzamide ring is disordered, with four C atoms occupying two sets of sites, with a refined occupancy ratio of 0.502 (4):0.498 (4). These two rings are inclined to one another by 85.2 (4)° and to the thiophene ring by 72.7 (3) and 13.0 (3)° for the major and minor components, respectively. In the crystal, molecules are linkedviaN—H...O hydrogen bonds, forming chains along [001].

scholarly journals Crystal structure of 10a-hydroxy-9-(3-nitrophenyl)-3,6-diphenyl-3,4,5,6,7,8a,9,10a-octahydro-1H-xanthene-1,8(2H)-dione

2015 ◽  
Vol 71 (12) ◽  
pp. 1510-1512
Author(s):  
Xin-Yuan Zhang ◽  
Bing-Xiang Hu ◽  
Ze-Yu Zhou ◽  
Lei Zhou ◽  
Fang-Ming Wang
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Chair Conformation ◽  
Dihedral Angles ◽  
Boat Conformation ◽  
Axis Direction ◽  
Compound C ◽  
Benzene Rings ◽  
Supramolecular Chains

In the octahydroxanthenedione unit of the title compound, C31H27NO6, the central dihydropyran ring shows an envelope conformation, while the bilateral cyclohexene and cyclohexane rings adopt a half-boat conformation and a chair conformation, respectively. The nitrobenzene ring is twisted with respect to the two benzene rings, making dihedral angles of 63.1 (1) and 63.0 (1)°. In the crystal, O—H...O hydrogen bonds link the molecules into supramolecular chains propagating along thea-axis direction.

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 (7, 8-Dimethyl-2-oxo-2H-chromen-4-yl)methyl morpholine-4-carbodithioate

IUCrData ◽  
2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Shamantha Kumar ◽  
Chandra ◽  
Amar A Hosamani ◽  
M. Mahendra ◽  
B. H. Doreswamy
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Torsion Angle ◽  
Title Compound ◽  
Chair Conformation ◽  
Π Interactions ◽  
Compound C ◽  
Morpholine Ring

In the title compound, C17H19NO3S2, the chromene unit makes a dihedral angle of 88.48 (5)° with the best plane through the morpholine ring. The carbodithioate group is present in an antiperiplanar conformation with respect to the morpholine ring, as indicated by the S—C—N—C torsion angle of −171.64 (8)°. The morpholine moiety adopts the usual chair conformation. The crystal structure features C—H...O and C—H...S hydrogen bonds and C—H...π interactions.

scholarly journals Crystal structure of (E)-1(anthracen-9-ylmethylidene)[2-(morpholin-4-yl)ethyl]amine

2014 ◽  
Vol 70 (9) ◽  
pp. o1045-o1046
Author(s):  
Zeliha Atioğlu ◽  
Mehmet Akkurt ◽  
Aliasghar Jarrahpour ◽  
Mehdi Mohammadi Chermahini ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Least Squares ◽  
Title Compound ◽  
Chair Conformation ◽  
Dihedral Angles ◽  
Asymmetric Unit ◽  
Compound C ◽  
Independent Molecules ◽  
Ethyl Amine

The title compound, C21H22N2O, crystallizes with two independent molecules in the asymmetric unit. In both molecules, the anthracene ring systems are almost planar, with maximum deviations of 0.071 (8) and 0.028 (7) Å, and make dihedral angles of 73.4 (2) and 73.3 (2)° with the least-squares planes formed by the four C atoms of the morpholine rings, which adopt a chair conformation. An intramolecular C—H...π interaction occurs. In the crystal, the packing is stabilized by weak C—H...O hydrogen bonds, which connect pairs of molecules into parallel to thecaxis, and C—H...π interactions.

scholarly journals Crystal structure of cholest-5-en-3β-yl 3-(2,4-dimethoxy-3-methylphenyl)prop-2-enoate

2015 ◽  
Vol 71 (2) ◽  
pp. o92-o93
Author(s):  
Bernhard Bugenhagen ◽  
Ariane Munk ◽  
Volkmar Vill ◽  
Yosef Al Jasem ◽  
Thies Thiemann
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Chair Conformation ◽  
Π Interactions ◽  
Envelope Conformation ◽  
Compound C ◽  
Axis Parallel

In the title compound, C39H58O4, the steroid ringsAandCadopt a chair conformation, while ringBadopts a half-chair conformation, and ringDhas an envelope conformation, with the methyl-substituted C atom as the flap. In the crystal, molecules pack within layers parallel to (100), with their long axis parallel to the [101] direction. Adjacent layers are linkedviaC—H...O hydrogen bonds and C—H...π interactions, forming a three-dimensional framework.

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