Difluoro[1-(1-naphthyliminomethyl)-2-naphtholato-N,O]boron

2006 ◽  
Vol 62 (7) ◽  
pp. o2625-o2626 ◽  
Author(s):  
Min Xia ◽  
Shao-Qin Ge ◽  
Xiang-Sheng Li
Keyword(s):  
Dihedral Angle ◽  
Title Compound ◽  
Boron Trifluoride ◽  
Crystal Packing ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Boron Trifluoride Etherate ◽  
Stacking Interactions ◽  
Compound C ◽  
The Mean

The title compound, C21H14BF2NO, was synthesized by the reaction of 3-[(E)-(naphthalen-1-ylimino)methyl]naphthalen-2-ol, diisopropylethylamine and boron trifluoride etherate. The mean planes of the two naphthalene systems make a dihedral angle of 71.97 (4)°. The crystal packing is stabilized by π–π stacking interactions and van der Waals forces.

scholarly journals Crystal structure of 4-(4-methoxyphenyl)-4′,4′-dimethyl-3-p-tolyl-3′,4′-dihydro-1′H,3H-spiro[isoxazole-5,2′-naphthalen]-1′-one

2015 ◽  
Vol 71 (12) ◽  
pp. o981-o981
Author(s):  
Mohamed Akhazzane ◽  
Ghali Al Houari ◽  
Mohamed El Yazidi ◽  
Mohamed Saadi ◽  
Lahcen El Ammari
Keyword(s):  
Crystal Structure ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Dihedral Angles ◽  
Isoxazole Ring ◽  
Compound C ◽  
The Mean

In the title compound, C28H27NO3, the cyclohexanone and isoxazole rings have envelope conformations, with the methylene and spiro C atoms as the flaps, respectively. The mean plane of the isoxazole ring is inclined slightly to thep-tolyl ring, making a dihedral angle of 14.20 (9)°, and is nearly perpendicular to the mean plane through the tetralone moiety and to the methoxyphenyl ring [dihedral angles = 83.41 (8) and 72.12 (9)°, respectively]. The crystal packing is stabilized mainly by van der Waals forces.

Bis(imidazol-1-yl)methane

2006 ◽  
Vol 62 (5) ◽  
pp. o1798-o1799
Author(s):  
Jian Li
Keyword(s):  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Rotation Axis ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Compound C ◽  
Methylene Group

In the title compound, C7H8N4, the C atom of the bridging methylene group lies on a twofold rotation axis. The dihedral angle between the symmetry-related imidazole rings is 75.0 (2)°. The crystal packing is stabilized by van der Waals forces.

Ethyl 2-acetamidomethyl-5-methoxy-1-(phenylsulfonyl)indole-3-carboxylate

2007 ◽  
Vol 63 (11) ◽  
pp. o4223-o4223
Author(s):  
Pon. Sathya Moorthy ◽  
M. Balasubramanian ◽  
V. Dhayalan ◽  
A. K. Mohanakrishnan ◽  
M. N. Ponnuswamy
Keyword(s):  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Crystal Packing ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Ring System ◽  
Indole Ring ◽  
Π Interactions ◽  
Compound C

In the title compound, C21H22N2O6S, the dihedral angle between the sulfonyl-bound phenyl ring and the indole ring system is 79.4 (1)°. The crystal packing is controlled by intra- and intermolecular N—H...O, C—H...O and C—H...π interactions, in addition to van der Waals forces.

scholarly journals 6-Bromo-2-(4-methoxyphenyl)-3-methyl-3H-imidazo[4,5-b]pyridine

IUCrData ◽  
2017 ◽  
Vol 2 (7) ◽  
Author(s):  
Selma Bourichi ◽  
Youssef Kandri Rodi ◽  
Jerry P. Jasinski ◽  
Manpreet Kaur ◽  
El Mestafa El Hadrami ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Pyridine Ring ◽  
Crystal Packing ◽  
Ring System ◽  
Stacking Interactions ◽  
Axis Direction ◽  
Compound C ◽  
The Mean

In the title compound, C14H12BrN3O, the dihedral angle between the mean planes of the imidazo[4,5-b]pyridine ring system and the methoxyphenyl ring is 41.53 (12)°. In the crystal, weak C—H...N hydrogen bonds link the molecules into chains along the c-axis direction. Weak π–π stacking interactions involving the imidazole and the methoxyphenyl rings further stabilize the crystal packing.

scholarly journals (3E)-3-{(2E)-3-[4-(Dimethylamino)phenyl]prop-2-enylidene}-3,4-dihydro-2H-chromen-4-one

IUCrData ◽  
2018 ◽  
Vol 3 (9) ◽  
Author(s):  
K. Biruntha ◽  
D. Reuben Jonathan ◽  
U. Mohamooda Sumaya ◽  
E. R. A. Dravida Thendral ◽  
G. Usha
Keyword(s):  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Crystal Packing ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Ring System ◽  
Compound C ◽  
Phenyl Rings

In the title compound, C20H19NO2, the (dimethylamino)phenyl ring and the chromanone ring system are linked via an α-β unsaturated carbon bridge. The dihedral angle between the two terminal phenyl rings is 29.66 (6)°. The tetrahydro-4H-pyran-4 one ring in the chromanone moiety adopts a sofa conformation. The crystal packing is stabilized only by van der Waals forces.

scholarly journals 5-(5-Chloro-2-hydroxybenzoyl)-1-methyl-3-nitropyridin-2(1H)-one

IUCrData ◽  
2017 ◽  
Vol 2 (10) ◽  
Author(s):  
Srinivasan Bargavi ◽  
Nataraj Poomathi ◽  
Narayanan Uma Maheswari ◽  
Srinivasakannan Lakshmi
Keyword(s):  
Hydrogen Bonds ◽  
Nitro Group ◽  
Dihedral Angle ◽  
Title Compound ◽  
Pyridine Ring ◽  
Crystal Packing ◽  
Three Dimensional ◽  
Stacking Interactions ◽  
Compound C ◽  
The Mean

In the title compound, C13H9ClN2O5, the dihedral angle between the planes of the benzene and pyridine rings is 55.30 (13)°. The nitro group is tilted by 38.21 (10)° with respect to the mean plane of the pyridine ring. In the crystal, molecules are linked by O—H...O and C—H...O hydrogen bonds, forming a three-dimensional framework. The crystal packing is further stabilized by π–π stacking interactions [intercentroid distance = 3.5877 (17) Å].

scholarly journals Bis(9-ethylcarbazol-3-yl)ethane

2006 ◽  
Vol 62 (4) ◽  
pp. o1213-o1215
Author(s):  
Erol Asker ◽  
John Masnovi
Keyword(s):  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Ring Systems ◽  
Π Interactions ◽  
Compound C

In the title compound, C30H28N2, each carbazole skeleton is essentially planar. The planes of the two carbazole ring systems are nearly parallel, with a dihedral angle of 2.33 (19)°. The crystal packing is stabilized only by van der Waals forces and weak C—H...π interactions.

scholarly journals 3-(2,4-Dichlorophenyl)-5-(4-fluorophenyl)-2-phenyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine

2012 ◽  
Vol 68 (6) ◽  
pp. o1923-o1923
Author(s):  
Ju Liu ◽  
Zhi-Qiang Cai ◽  
Yang Wang ◽  
Yu-Li Sang ◽  
Li-Feng Xu
Keyword(s):  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Crystal Packing ◽  
Van Der Waals ◽  
Van Der Waals Interactions ◽  
Compound C ◽  
Benzene Rings ◽  
Planar Systems

In the title compound, C25H13Cl2F4N3, there are four planar systems, viz. three benzene rings and a pyrazolo[1,5-a]pyrimidine system [r.m.s. deviation = 0.002 Å]. The dihedral angle between the dichlorophenyl ring and the unsubstituted phenyl ring is 69.95 (5)°, while that between the fluorophenyl ring and the unsubstituted phenyl ring is 7.97 (10)°. The crystal packing is dominated by van der Waals interactions. A Cl...Cl interaction of 3.475 (3) Å also occurs.

scholarly journals 3,4-Dimethylphenyl quinoline-2-carboxylate

2013 ◽  
Vol 69 (12) ◽  
pp. o1853-o1854 ◽  
Author(s):  
E. Fazal ◽  
Manpreet Kaur ◽  
B. S. Sudha ◽  
S. Nagarajan ◽  
Jerry P. Jasinski
Keyword(s):  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Crystal Packing ◽  
Ring System ◽  
Carboxylate Group ◽  
Quinoline Ring ◽  
Compound C ◽  
The Mean

In the title compound, C18H15NO2, the dihedral angle between the mean planes of the quinoline ring system and the phenyl ring is 48.1 (5)°. The mean plane of the carboxylate group is twisted from the mean planes of the latter by 19.8 (8) and 64.9 (5)°, respectively. The crystal packing features weak C—H...O interactions, which form chains along [010].

scholarly journals 2,4-Dibromo-2,3-dihydro-1H-inden-1-yl acetate

2012 ◽  
Vol 68 (6) ◽  
pp. o1884-o1884 ◽  
Author(s):  
Ísmail Çelik ◽  
Mehmet Akkurt ◽  
Makbule Yilmaz ◽  
Ahmet Tutar ◽  
Ramazan Erenler ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Stacking Interactions ◽  
Compound C ◽  
Centroid Distance ◽  
Cyclopentene Ring

In the title compound, C11H10Br2O2, the cyclopentene ring fused to the benzene ring adopts an envelope conformation, with the C atom attached to the Br atom as the flap. The crystal structure does not exhibit any classical hydrogen bonds. The molecular packing is stabilized by van der Waals forces and π–π stacking interactions with a centroid–centroid distance of 3.811 (4) Å.

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