scholarly journals 2,3-Diphenylmaleimide 1-methylpyrrolidin-2-one monosolvate

2014 ◽  
Vol 70 (3) ◽  
pp. o260-o260 ◽  
Author(s):  
Evgeny Bulatov ◽  
Dina Boyarskaya ◽  
Tatiana Chulkova ◽  
Matti Haukka
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Centroid Distance ◽  
Phenyl Rings

In the title compound, C16H11NO2·C5H9NO, the dihedral angles between the maleimide and phenyl rings are 34.7 (2) and 64.8 (2)°. In the crystal, the 2,3-diphenylmaleimide and 1-methylpyrrolidin-2-one molecules form centrosymmetrical dimersviapairs of strong N—H...O hydrogen bonds and π–π stacking interactions between the two neighboring maleimide rings [centroid–centroid distance = 3.495 (2) Å]. The dimers are further linked by weak C—H...O and C—H...π hydrogen bonds into a three-dimensional framework.

scholarly journals 2-(3,4-Dimethoxyphenyl)-1-pentyl-4,5-diphenyl-1H-imidazole

2013 ◽  
Vol 69 (12) ◽  
pp. o1833-o1834
Author(s):  
Shaaban K. Mohamed ◽  
Mehmet Akkurt ◽  
Adel A. Marzouk ◽  
Kuldip Singh ◽  
Mustafa R. Albayati
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Imidazole Ring ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
Compound C ◽  
Dimensional Network ◽  
Centroid Distance ◽  
Phenyl Rings

The central imidazole ring in the title compound, C28H30N2O2, makes dihedral angles of 28.42 (13), 71.22 (15) and 29.50 (14)°, respectively, with the phenyl rings in the 4- and 5-positions and the 3,4-dimethoxyphenyl group. In the crystal, molecules are linked by C—H...O and C—H...N hydrogen bonds, weak π–π stacking interactions [centroid–centroid distance = 3.760 (2) Å] and C—H...π contacts, forming a three-dimensional network.

scholarly journals 6-Fluoro-4-oxo-4H-chromene-3-carbaldehyde

2014 ◽  
Vol 70 (5) ◽  
pp. o583-o583 ◽  
Author(s):  
Yoshinobu Ishikawa
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Stacking Interactions ◽  
Axis Direction ◽  
Compound C ◽  
Π Stacking ◽  
Centroid Distance ◽  
The Mean

In the title compound, C10H5FO3, the non-H atoms are essentially coplanar (r.m.s. deviation = 0.0071 Å), with the largest deviation from the mean plane [0.0203 (15) Å] being found for the ring C atom in the 2-position. In the crystal, molecules are linked into a three-dimensional architectureviaC—H...O hydrogen bonds and π–π stacking interactions between the chromone units along thea-axis direction [centroid–centroid distance between the benzene and pyran rings = 3.707 (2) Å].

scholarly journals N-(6-Chloro-1-methyl-1H-imidazo[4,5-c]pyridin-4-yl)benzenesulfonamide

2014 ◽  
Vol 70 (4) ◽  
pp. o445-o445
Author(s):  
Venkatesh B. Devaru ◽  
K. S. Katagi ◽  
O. Kotresh ◽  
H. K. Arunkashi ◽  
H. C. Devarajegowda
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Phenyl Ring ◽  
Three Dimensional ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
Asymmetric Unit ◽  
Compound C ◽  
Dimensional Network ◽  
Centroid Distance

The asymmetric unit of the title compound, C13H11ClN4O2S, contains two molecules (AandB), in which the dihedral angles between the 1H-imidazo[4,5-c]pyridine system and terminal phenyl ring are 80.83 (10) and 62.34 (1)°. In the crystal,A–Bdimers are linked by pairs of N—H...N hydrogen bonds, which generateR22(10) loops. The dimers are linked by C—H...O and C—H...Cl interactions, generating a three-dimensional network. Aromatic π–π stacking interactions [shortest centroid–centroid distance = 3.5211 (12) Å] are also observed.

scholarly journals 3-(4-Chlorophenyl)-5-[4-(methylsulfanyl)phenyl]-1H-pyrazole

IUCrData ◽  
2016 ◽  
Vol 1 (4) ◽  
Author(s):  
Ganesan Suresh ◽  
Sarangapani Muniraj
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Three Dimensional ◽  
Pyrazole Ring ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Dimensional Network

In the title compound, C16H13ClN2S, the pyrazole ring is almost planar with an r.m.s. deviation of 0.0457 Å which forms dihedral angles of 2.875 (4) and 84.83 (7)° with the chloro-substituted benzene ring and the methylsulfanyl-substituted ring, respectively. In the crystal, N—H...N and C—H...Cl hydrogen bonds contribute to the formation of a three-dimensional network. In addition, several offset π–π stacking interactions are also present.

scholarly journals 1-(3-Methoxyphenyl)-2-(phenylsulfonyl)ethan-1-one

2012 ◽  
Vol 68 (8) ◽  
pp. o2562-o2562 ◽  
Author(s):  
Sammer Yousuf ◽  
Sarosh Iqbal ◽  
Nida Ambreen ◽  
Khalid M. Khan
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Three Dimensional ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Dimensional Network ◽  
Phenyl Rings

In the title compound, C15H14O4S, the dihedral angle between the benzene and phenyl rings is 88.74 (10)°. In the crystal, molecules are linked into a three-dimensional network by C—H...O hydrogen bonds and π–π stacking interactions [centroid–centroid distances = 3.6092 (13)–3.8651 (13) Å].

scholarly journals 3-Amino-N-benzyl-6-(4-fluorophenyl)thieno[2,3-b]pyridine-2-carboxamide

2012 ◽  
Vol 68 (6) ◽  
pp. o1823-o1823
Author(s):  
Jin-Ni Zhao ◽  
Sheng-Yong Yang ◽  
Li Yang
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Phenyl Ring ◽  
Molecular Conformation ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Centroid Distance ◽  
The Stability

In the title compound, C21H16FN3OS, the thieno[2,3-b]pyridine system forms dihedral angles of 10.57 (12) and 83.87 (5)° with the fluorophenyl ring at the 6-position and the phenyl ring of the benzyl group, respectively. In the crystal, molecules are linked by weak N—H...N anf N—H...O hydrogen bonds and π–π stacking interactions involving fluorophenyl rings of adjacent molecules, with a centroid–centroid distance of 3.648 (10) Å. In addition, intramolecular N—H...S and N—H...O hydrogen bonds contribute to the stability of the molecular conformation.

scholarly journals 1,8-Dibenzoylnaphthalene-2,7-diyl dibenzoate

2012 ◽  
Vol 68 (8) ◽  
pp. o2454-o2454 ◽  
Author(s):  
Rei Sakamoto ◽  
Kosuke Sasagawa ◽  
Daichi Hijikata ◽  
Akiko Okamoto ◽  
Noriyuki Yonezawa
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Ring System ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
Naphthalene Ring ◽  
Compound C ◽  
Π Stacking ◽  
Phenyl Rings

In the title compound, C38H24O6, the phenyl rings of the benzoyl and benzoyloxy groups make dihedral angles of 67.12 (5), 85.15 (5), 76.41 (5) and 71.47 (5)° with the naphthalene ring system. In the crystal, C—H...O hydrogen bonds link molecules into chains parallel to thebaxis. The structure also features C—H...π and π–π stacking interactions, with centroid–centroid distances in the range 3.6441 (7)–3.9197 (8) Å.

scholarly journals Ethyl 1-benzyl-2-(3-chlorophenyl)-1H-benzimidazole-5-carboxylate

IUCrData ◽  
2016 ◽  
Vol 1 (7) ◽  
Author(s):  
S. Madan Kumar ◽  
D. Manasa ◽  
Vasantha Kumar ◽  
Boja Poojary ◽  
K. Byrappa ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Imidazole Ring ◽  
Ring System ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Phenyl Rings

In the title compound, C23H19ClN2O2, the dihedral angles between the imidazole ring system and the chlorobenzene and phenyl rings are 48.05 (14) and 82.53 (15)°, respectively. In the crystal, inversion dimers linked by pairs of C—H...O hydrogen bonds generateR22(22) loops. Weak C—H...π and π–π stacking interactions are also observed.

scholarly journals Crystal structure of 2-bromo-1,4-dihydroxy-9,10-anthraquinone

2014 ◽  
Vol 70 (10) ◽  
pp. o1130-o1130 ◽  
Author(s):  
Wataru Furukawa ◽  
Munenori Takehara ◽  
Yoshinori Inoue ◽  
Chitoshi Kitamura
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Dimensional Network

In an attempt to brominate 1,4-dipropoxy-9,10-anthraquinone, a mixture of products, including the title compound, C14H7BrO4, was obtained. The molecule is essentially planar (r.m.s. deviation = 0.029 Å) and two intramolecular O—H...O hydrogen bonds occur. In the crystal, the molecules are linked by weak C—H...O hydrogen bonds, Br...O contacts [3.240 (5) Å], and π–π stacking interactions [shortest centroid–centroid separation = 3.562 (4) Å], generating a three-dimensional network.

scholarly journals 4-Fluoro-N-(4-hydroxybenzylidene)aniline

2014 ◽  
Vol 70 (8) ◽  
pp. o860-o860
Author(s):  
L. Jothi ◽  
G. Anuradha ◽  
G. Vasuki ◽  
R. Ramesh Babu ◽  
K. Ramamurthi
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Schiff Bases ◽  
Title Compound ◽  
Three Dimensional ◽  
Dihedral Angles ◽  
Axis Direction ◽  
Compound C ◽  
Dimensional Network ◽  
Phenyl Rings

In the title compound, C13H10FNO, the benzene ring planes are inclined at an angle of 50.52 (8)°. A characteristic of aromatic Schiff bases withN-aryl substituents is that the terminal phenyl rings are twisted relative to the plane of the HC=N link between them. In this case, the HC=N unit makes dihedral angles of 10.6 (2) and 40.5 (2)° with the hydroxybenzene and flurobenzene rings, respectively. In the crystal, O—H...N and C—H...F hydrogen bonds lead to the formation of chains along thec-andb-axis directions, respectively. C—H...π contacts link molecules alongaand these contacts combine to generate a three-dimensional network with molecules stacked along theb-axis direction.

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