scholarly journals 1-[3-(Morpholin-4-yl)propyl]-3-[(naphthalen-2-yl)oxy]-4-(3-nitrophenyl)azetidin-2-one

2014 ◽  
Vol 70 (8) ◽  
pp. o833-o834
Author(s):  
Zeliha Atioğlu ◽  
Mehmet Akkurt ◽  
Aliasghar Jarrahpour ◽  
Roghayeh Heiran ◽  
Namık Özdemir
Keyword(s):  
Hydrogen Bonds ◽  
Chair Conformation ◽  
Ring System ◽  
Dihedral Angles ◽  
Maximum Deviation ◽  
Naphthalene Ring ◽  
Compound C ◽  
Lactam Ring ◽  
The Mean ◽  
Morpholine Ring

In the title compound, C26H27N3O5, the β-lactam (azetidin-2-one) ring is nearly planar [maximum deviation = 0.011 (3) Å]. The mean plane formed by the four C atoms of the morpholine ring, which adopts a chair conformation, the benzene ring and the naphthalene ring system form dihedral angles of 72.85 (17), 87.46 (15) and 65.96 (11)°, respectively, with the β-lactam ring. In the crystal, molecules are linkedviaC—H...O hydrogen bonds, forming inversion dimers withR22(8).

scholarly journals Crystal structure of (7-methyl-2-oxo-2H-chromen-4-yl)methyl piperidine-1-carbodithioate

2015 ◽  
Vol 71 (8) ◽  
pp. o606-o607
Author(s):  
K. R. Roopashree ◽  
T. G. Meenakshi ◽  
K. Mahesh Kumar ◽  
O. Kotresh ◽  
H. C. Devarajegowda
Keyword(s):  
Crystal Structure ◽  
Chair Conformation ◽  
Ring System ◽  
Piperidine Ring ◽  
Dihedral Angles ◽  
Maximum Deviation ◽  
Compound C ◽  
Centroid Distance ◽  
The Mean ◽  
Chromene Ring

In the title compound, C17H19NO2S2, the 2H-chromene ring system is nearly planar, with a maximum deviation of 0.0383 (28) Å, and the piperidine ring adopts a chair conformation. The 2H-chromene ring makes dihedral angles of 32.89 (16) and 67.33 (8)°, respectively, with the mean planes of the piperidine ring and the carbodithioate group. In the crystal, C—H...O and weak C—H...S hydrogen bonds link the molecules into chains along [001]. The crystal structure also features C—H...π and π–π interactions, with a centroid–centroid distance of 3.7097 (17) Å.

scholarly journals 1-[3-(Morpholin-4-yl)propyl]-4-(3-nitrophenyl)spiro[azetidine-3,9′-xanthen]-2-one

2014 ◽  
Vol 70 (3) ◽  
pp. o369-o370 ◽  
Author(s):  
Ísmail Çelik ◽  
Mehmet Akkurt ◽  
Aliasghar Jarrahpour ◽  
Roghayeh Heiran ◽  
Namık Özdemir
Keyword(s):  
Hydrogen Bond ◽  
Least Squares ◽  
Benzene Ring ◽  
Title Compound ◽  
Chair Conformation ◽  
Ring System ◽  
Dihedral Angles ◽  
Maximum Deviation ◽  
Compound C ◽  
Morpholine Ring

The β-lactam (azetidin-2-one) ring of the title compound, C28H27N3O5, is nearly planar [maximum deviation = 0.010 (1) Å] and makes dihedral angles of 75.77 (5), 52.78 (9) and 88.72 (5)°, respectively, with the benzene ring, the least-squares plane formed by the four C atoms of the morpholine ring, which adopts a chair conformation, and the xanthene ring system. In the crystal, C—H...O hydrogen-bond contacts connect neighbouring molecules into infinite zigzag chains running parallel to thebaxis.

scholarly journals Crystal structure of 3-[4-(benzyloxy)phenyl]-2,3-dihydro-1H-benzo[f]chromen-1-one

2014 ◽  
Vol 70 (10) ◽  
pp. o1116-o1117 ◽  
Author(s):  
R. Vasanthi ◽  
D. Reuben Jonathan ◽  
K. S. Ezhilarasi ◽  
S. Sathya ◽  
G. Usha
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Chair Conformation ◽  
Ring System ◽  
Dihedral Angles ◽  
Naphthalene Ring ◽  
Pyran Ring ◽  
Compound C ◽  
Phenyl Rings ◽  
Graph Set

In the title compound, C26H20O3, the pyran ring has a distorted half-chair conformation and its mean plane is inclined to the naphthalene ring system, to which it is fused, by 10.79 (9)°. The dihedral angles between the napthalene unit and the benzene and phenyl rings are 54.39 (9) and 52.65 (12)°, respectively, while the benzene and phenyl rings are inclined to one another by 74.80 (14)°. There is a short C—H...O contact in the chromen-1-one unit. In the crystal, molecules are linked by two pairs of C—H...O hydrogen bonds, forming inversion dimers described by graph set motifsR22(8) andR22(10), giving rise to chains running parallel to (101). The chains are linkedviaC—H...π interactions, forming sheets lying parallel to (010).

scholarly journals Crystal structure of 3-amino-1-(4-methoxyphenyl)-1H-benzo[f]chromene-2-carbonitrile

2015 ◽  
Vol 71 (7) ◽  
pp. o468-o469
Author(s):  
Shaaban K. Mohamed ◽  
Peter N. Horton ◽  
Mehmet Akkurt ◽  
Sabry H. H. Younes ◽  
Mustafa R. Albayati
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Crystal Packing ◽  
Ring System ◽  
Maximum Deviation ◽  
Naphthalene Ring ◽  
Pyran Ring ◽  
Compound C ◽  
The Mean

In the title compound, C21H16N2O2, the methoxybenzene ring is almost perpendicular to the mean plane of the naphthalene ring system, making a dihedral angle of 83.62 (5)°. The 4H-pyran ring fused with the naphthalene ring system is almost planar [maximum deviation = 0.033 (1) Å]. In the crystal, molecules are linked into inversion dimers by pairs of N—H...N hydrogen bonds. N—H...O hydrogen bonds connect the dimers, forming a helical supramolecular chain along thea-axis direction. The crystal packing also features C—H...π interactions.

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 2-Amino-6-(piperidin-1-yl)-4-p-tolylpyridine-3,5-dicarbonitrile

2013 ◽  
Vol 69 (12) ◽  
pp. o1807-o1807
Author(s):  
S. Antony Inglebert ◽  
Jayabal Kamalraja ◽  
K. Sethusankar ◽  
Gnanasambandam Vasuki
Keyword(s):  
Hydrogen Bonds ◽  
Pyridine Ring ◽  
Chair Conformation ◽  
Piperidine Ring ◽  
Dihedral Angles ◽  
Maximum Deviation ◽  
Two Dimensional ◽  
Compound C ◽  
Benzene Rings ◽  
The Mean

In the title compound, C19H19N5, the piperidine ring adopts a chair conformation. The pyridine ring is essentially planar, with a maximum deviation of 0.039 (2) Å for a C atom substituted with a carbonitrile group. The mean plane of the central pyridine ring makes the dihedral angles of 37.90 (14) and 56.10 (12)° with the piperidine and benzene rings, respectively. In the crystal, molecules are linkedviaN—H...N and C—H...N hydrogen bonds, forming chains along [101], and enclosingR22(17) ring motifs. The chains are linked by further C—H...N hydrogen bonds, forming two-dimensional networks lying parallel to (10-1), and enclosing inversion dimers withR22(20) ring motifs.

scholarly journals Methyl (6R*,6aR*,12bR*)-2,4-dimethyl-6-(2-methylphenyl)-1,3-dioxo-2,3,4,6a,7,12b-hexahydro-1H,6H-chromeno[4′,3′:4,5]pyrano[2,3-d]pyrimidine-6a-carboxylate

IUCrData ◽  
2017 ◽  
Vol 2 (6) ◽  
Author(s):  
S. Gomathi ◽  
Era Dravida Thendral ◽  
G. Sivakumar ◽  
V. Sabari ◽  
G. Usha
Keyword(s):  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Chair Conformation ◽  
Ring System ◽  
Dihedral Angles ◽  
Pyran Ring ◽  
Compound C ◽  
Dimensional Network ◽  
The Mean ◽  
Chromene Ring

In the title compound, C24H24N2O6, the mean planes of the pyran rings (AandB) are inclined to one another by 69.2 (1)°, while the aromatic ring (D) of the chromene ring system makes dihedral angles of 63.42 (11) and 66.81 (12)° with the pyrimidine (C) and benzene (E) rings, respectively. Pyran ringAhas an half-chair conformation, while pyran ringBhas an envelope conformation, with the spiro C atom as the flap. In the crystal, molecules are linked by C—H...O hydrogen bonds, forming a supramolecular three-dimensional network. There are also a number of C—H...π interactions present.

scholarly journals (5,7-Dimethyl-2-oxo-2H-chromen-4-yl)methyl morpholine-4-carbodithioate

IUCrData ◽  
2016 ◽  
Vol 1 (2) ◽  
Author(s):  
B. R. Anitha ◽  
K. R. Roopashree ◽  
K. Mahesh Kumar ◽  
A. J. Ravi ◽  
H. C. Devarajegowda
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Bond Angle ◽  
Chair Conformation ◽  
Ring System ◽  
Maximum Deviation ◽  
Compound C ◽  
Centroid Distance ◽  
Morpholine Ring ◽  
Chromene Ring

In the title compound, C17H19NO3S2, the 2H-chromene ring system is nearly planar, with a maximum deviation of 0.080 (2) Å, and the morpholine ring adopts a chair conformation. The bond-angle sum at the N atom is 358°. The coumarin unit makes dihedral angle of 86.34 (9)° with the morpholine ring. A short intramolecular C—H...S contact generates anS(7) ring. In the crystal, inversion dimers linked by pairs of weak C—H...O hydrogen bonds generateR22(16) loops. Aromatic π–π interactions interactions [shortest centroid–centroid distance = 3.8599 (13) Å] also occur.

scholarly journals Crystal structure of 5-chloro-1,3-bis[2-(2-oxo-1,3-oxazolidin-3-yl)ethyl]-1H-benzimidazol-2(3H)-one

2015 ◽  
Vol 71 (10) ◽  
pp. o735-o736 ◽  
Author(s):  
Kaoutar Bouayad ◽  
Youssef Kandri Rodi ◽  
Youness Ouzidan ◽  
El Mokhtar Essassi ◽  
Mohamed Saadi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Ring System ◽  
Dihedral Angles ◽  
Maximum Deviation ◽  
Compound C ◽  
Fused Ring ◽  
The Mean ◽  
Fused Ring System ◽  
Cl Atom

In the title compound, C17H19ClN4O5, the benzimidazole fused-ring system is essentially planar, the maximum deviation from the mean plane being 0.06 (1) Å. Both oxazolidine rings are nearly planar, the maximum deviations from the mean planes are 0.071 (13) and 0.070 (10) Å. The dihedral angle between the mean planes of the oxazolidine rings is 69.9 (7)°. The benzimidazole mean plane makes the dihedral angles of 43.9 (6) and 45.6 (6)° with the two oxazolidine rings. In the crystal, the molecules are linked together by weak C—H...O hydrogen bonds building zigzag tapes running along thecaxis. The Cl atom is split over two positions with an occupancy ratio of 0.567 (7):0.433 (7). This means that the reaction yields two isomers,AandB; theAcomponent has the Cl-atom substituent in the 5-position of the benzimidazolone ring and theBcomponent has the Cl atom in the 6-position. The two isomers form the disordered co-crystal, with a nearly half Cl atom in each of them, as indicated by the occupancy ratio. The crystal structure was refined as an inversion twin.

scholarly journals 1-(Morpholin-4-yl)-4-(2-nitrophenyl)spiro[azetidine-3,9′-xanthen]-2-one

2014 ◽  
Vol 70 (7) ◽  
pp. o772-o773
Author(s):  
Zeliha Atioğlu ◽  
Mehmet Akkurt ◽  
Aliasghar Jarrahpour ◽  
Roghayeh Heiran ◽  
Namık Özdemir
Keyword(s):  
Hydrogen Bond ◽  
Least Squares ◽  
Benzene Ring ◽  
Title Compound ◽  
Chair Conformation ◽  
Ring System ◽  
Dihedral Angles ◽  
Maximum Deviation ◽  
Compound C ◽  
Morpholine Ring

In the title compound, C22H21N3O5, the β-lactam (azetidin-2-one) ring is nearly planar [maximum deviation = 0.010 (1) Å] and makes dihedral angles of 69.22 (5), 55.32 (5) and 89.42 (4)° with the least-squares planes formed by the four C atoms of the morpholine ring, which adopts a chair conformation, the benzene ring and the xanthene ring system, respectively. In the crystal, C—H...O hydrogen-bond contacts connect neighbouring molecules into infinite zigzag chains running parallel to thebaxis.

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