scholarly journals 2-[(E)-(2-Aminophenyl)iminomethyl]-5-(dimethylamino)phenol

2009 ◽  
Vol 65 (6) ◽  
pp. o1232-o1232
Author(s):  
Yan-Hong Yu ◽  
Kun Qian
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Double Bond ◽  
Dihedral Angle ◽  
Title Compound ◽  
Hydrogen Bonding Interaction ◽  
Compound C ◽  
Bonding Interaction ◽  
Benzene Rings

The molecule of the title compound, C17H21N3O, displays atransconfiguration with respect to the C=N double bond. The dihedral angle between the planes of the two benzene rings is 50.96 (11)° and a strong intramolecular O—H...N hydrogen bond is present. An intermolecular N—H...O hydrogen-bonding interaction stabilizes the crystal structure.

scholarly journals Crystal structure of 4-methyl-N-{[1-(4-methylbenzoyl)piperidin-4-yl]methyl}benzamide

2014 ◽  
Vol 70 (11) ◽  
pp. o1157-o1157
Author(s):  
K. Prathebha ◽  
D. Reuben Jonathan ◽  
S. Sathya ◽  
R. Vasanthi ◽  
G. Usha
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Dihedral Angle ◽  
Title Compound ◽  
Chair Conformation ◽  
Piperidine Ring ◽  
Hydrogen Bonding Interaction ◽  
Compound C ◽  
Bonding Interaction ◽  
Benzene Rings

In the title compound, C22H27N2O2, the piperidine ring adopts a half-chair conformation with the benzene rings inclined in atransorientation with respect to the piperidine ring [dihedral angle between the benzene rings = 89.1 (1)°]. In the crystal, a three-centre asymmetric N—H...O/C—H...O hydrogen-bonding interaction leads to the formation of chains extending along thea-axis direction.

scholarly journals Crystal structure of (Z)-3-[5-chloro-2-(prop-2-ynyloxy)phenyl]-3-hydroxy-1-[4-(trifluoromethyl)phenyl]prop-2-en-1-one

2015 ◽  
Vol 71 (8) ◽  
pp. o556-o557
Author(s):  
Aarti Dalal ◽  
Ramesh C. Kamboj ◽  
Dinesh Kumar ◽  
Mahendra Kumar Sharma ◽  
Nagendran Selvarajan
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Double Bond ◽  
Dihedral Angle ◽  
Title Compound ◽  
Photochemical Transformation ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Benzene Rings

The title compound, C19H12ClF3O3, obtained by the photochemical transformation of 2-[5-chloro-2-(prop-2-ynyloxy)benzoyl]-3-[4-(trifluoromethyl)phenyl]oxirane adopts aZconformation with respect to the enolic C=C double bond. The dihedral angle between the benzene rings is 12.25 (16)° and an intramolecular O—H...O hydrogen bond closes anS(6) ring. An intramolecular C—H...O interaction also leads to anS(6) ring. In the crystal, very weak C—H...O interactions and short Cl...Cl contacts [3.3221 (16) Å] are seen, as well as weak aromatic π–π stacking interactions [centroid–centroid separation = 3.879 (2) Å].

scholarly journals (E)-4-Bromo-2-[(2,6-diisopropylphenyl)iminomethyl]phenol

2012 ◽  
Vol 68 (6) ◽  
pp. o1782-o1782
Author(s):  
P. Balamurugan ◽  
K. Kanmani Raja ◽  
S. Kutti Rani ◽  
G. Chakkaravarthi ◽  
G. Rajagopal
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Dihedral Angle ◽  
Title Compound ◽  
Methyl Group ◽  
Compound C ◽  
Benzene Rings ◽  
Graph Set

In the title compound, C19H22BrNO, the dihedral angle between the benzene rings is 76.17 (14)° and an intramolecular O—H...N hydrogen bond with an S(6) graph-set motif is present. One methyl group is disordered over two sets of sites with site occupancies of 0.66 (3) and 0.34 (3). A weak intermolecular C—H...π interaction is observed in the crystal structure.

scholarly journals Crystal structure of (E)-4-methoxy-2-{[(5-methylpyridin-2-yl)imino]methyl}phenol

2015 ◽  
Vol 71 (11) ◽  
pp. o819-o819 ◽  
Author(s):  
Farook Adam ◽  
Md Azharul Arafath ◽  
Rosenani Anwaeul Haque ◽  
Mohd Rizal Razali
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Schiff Base ◽  
Double Bond ◽  
Dihedral Angle ◽  
Compound C ◽  
Benzene Rings ◽  
Schiff Base Compound ◽  
Intramolecular Hydrogen ◽  
Base Compound

The molecule of the title Schiff base compound, C14H14N2O2, displays anEconformation with respect the imine C=N double bond. The molecule is approximately planar, with the dihedral angle formed by the planes of the pyridine and benzene rings being 5.72 (6)°. There is an intramolecular hydrogen bond involving the phenolic H and imine N atoms.

3,4:12,13-Dibenzo-5,8,11-trioxo-1,15,18-triazonia-3,12-cycloeicosadiene tribromide

2007 ◽  
Vol 63 (3) ◽  
pp. o1383-o1384
Author(s):  
Yan Wang ◽  
Gang Liu ◽  
Ling Xie ◽  
Ji-De Wang
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Dihedral Angle ◽  
Title Compound ◽  
Macrocyclic Ligand ◽  
Compound C ◽  
Benzene Rings ◽  
Donor Type ◽  
The Mean

In the cation of the title compound, C22H34N3O3 3+·3Br−, a 20-membered N3O3 donor-type macrocyclic ligand, the mean of all nine N...O distances is 5.775 (2) Å and the dihedral angle between the two benzene rings is 33.5 (2)°. N—H...Br hydrogen bonding helps to stabilize the crystal structure.

scholarly journals Crystal structure of (E)-4-ethyl-2-(4-methoxybenzylidene)-3,4-dihydronaphthalen-1(2H)-one

2015 ◽  
Vol 71 (6) ◽  
pp. o432-o432
Author(s):  
Mohamed Akhazzane ◽  
Ghali Al Houari ◽  
Mohamed El Yazidi ◽  
Mohamed Saadi ◽  
Lahcen El Ammari
Keyword(s):  
Crystal Structure ◽  
Double Bond ◽  
Dihedral Angle ◽  
Title Compound ◽  
The Other ◽  
Axial Orientation ◽  
Boat Conformation ◽  
Compound C ◽  
Benzene Rings ◽  
Van Der Waals Contacts

In the title compound, C20H20O2, the exocyclic C=C double bond has anEconformation. The ethyl substituent on the cyclohexanone ring is in an axial orientation. The cyclohexanone ring adopts a screw-boat conformation, with the methylene C atom and the C atom bearing the 4-methoxybenzylidene group displaced from the other atoms by 0.812 (1) and 0.334 (1) Å, respectively. The dihedral angle between the planes of the benzene rings is 42.20 (8)°. In the crystal, no directional interactions beyond van der Waals contacts are observed.

scholarly journals N′-[(1E)-1-(2-Fluorophenyl)ethylidene]pyridine-3-carbohydrazide

2014 ◽  
Vol 70 (2) ◽  
pp. o115-o115 ◽  
Author(s):  
P. B. Sreeja ◽  
M. Sithambaresan ◽  
N. Aiswarya ◽  
M. R. Prathapachandra Kurup
Keyword(s):  
Hydrogen Bond ◽  
Double Bond ◽  
Bond Length ◽  
Dihedral Angle ◽  
Title Compound ◽  
Axis Direction ◽  
Compound C ◽  
Planar Molecule ◽  
Benzene Rings ◽  
Adjacent Molecule

The title compound, C14H12FN3O, adopts anEconformation with respect to the azomethine double bond whereas the N and methyl C atoms are in aZconformation with respect to the same bond. The ketonic O and azomethine N atoms arecisto each other. The non-planar molecule [the dihedral angle between the benzene rings is 7.44 (11)°] exists in an amido form with a C=O bond length of 1.221 (2) Å. In the crystal, a bifurcated N—H...(O,N) hydrogen bond is formed between the amide H atom and the keto O and imine N atoms of an adjacent molecule, leading to the formation of chains propagating along theb-axis direction. Through a 180° rotation of the fluorophenyl ring, the F atom is disordered over two sites with an occupancy ratio of 0.632 (4):0.368 (4).

scholarly journals Crystal structure of 22,24,25-trimethyl-8,11,14-trioxa-25-azatetracyclo[19.3.1.02,7.015,20]pentacosa-2,4,6,15(20),16,18-hexaen-23-one

2017 ◽  
Vol 73 (2) ◽  
pp. 118-121 ◽  
Author(s):  
Van Tuyen Nguyen ◽  
Hong Hieu Truong ◽  
Tuan Anh Le ◽  
Anatoly T. Soldatenkov ◽  
Tuyet Anh Dang Thi ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Nitrogen Atom ◽  
Dihedral Angle ◽  
Title Compound ◽  
Mirror Symmetry ◽  
Bond Angles ◽  
Pyramidal Geometry ◽  
Compound C ◽  
Benzene Rings

The title compound, C24H29NO4, is the product of a Petrenko–Kritchenko condensation of 1,5-bis(2-formylphenoxy)-3-oxapentane, pentan-3-one and methylammonium acetate in ethanol. The molecule has mirror symmetry. The aza-14-crown-3 ether ring adopts abowlconformation stabilized by a weak intramolecular C—H...O hydrogen bond. The conformation of the C—O—C—C—O—C—C—O—C polyether chain is t–g+–t–t–g−–t (t =trans, 180°; g =gauche, ±60°). The dihedral angle between the benzene rings fused to the aza-14-crown-4-ether moiety is 72.68 (4)°. The piperidinone ring adopts achairconformation. The nitrogen atom has a trigonal–pyramidal geometry, the sum of the bond angles being 335.9°. In the crystal, the molecules are linked by weak C—H...O interactions, forming zigzag chains propagating along the [100] direction.

8-(2-Phenylethylamino)quinoline

2000 ◽  
Vol 57 (1) ◽  
pp. o4-o5
Author(s):  
Daniel E. Lynch ◽  
Ian McClenaghan
Keyword(s):  
Hydrogen Bonding ◽  
Dihedral Angle ◽  
Title Compound ◽  
Hydrogen Bonding Interaction ◽  
Ring Systems ◽  
Compound C ◽  
Bonding Interaction

The structure of the title compound, C17H16N2, (I), comprises twisted molecules that contain a single intramolecular N—H...N hydrogen-bonding interaction. The dihedral angle between the two ring systems is 65.72 (4)°.

4,4′-Dimethyl-2,2′-(N-methyliminodimethylene)diphenol

2006 ◽  
Vol 62 (7) ◽  
pp. o2949-o2950 ◽  
Author(s):  
Ming-Hu Wu ◽  
Wen-Ju Liu ◽  
Wei-Dong Zou ◽  
Hai-Yan Wang
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Dihedral Angle ◽  
Title Compound ◽  
Compound C ◽  
Hydrogen Bonding Interactions ◽  
Benzene Rings

In the title compound, C17H21NO2, the dihedral angle between the benzene rings is 49.8 (3)°. In the crystal structure, the molecules form layers parallel to the ac plane which are stacked along the b axis and which are stabilized by O—H...O and C—H...O hydrogen-bonding interactions.

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