scholarly journals 4-[1-(4-Chlorophenyl)-3-oxobutylamino]benzoic acid

2007 ◽  
Vol 63 (11) ◽  
pp. o4420-o4421
Author(s):  
B. Narayana ◽  
K. Sunil ◽  
B. K. Sarojini ◽  
H. S. Yathirajan ◽  
Michael Bolte
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Benzoic Acid ◽  
Dihedral Angle ◽  
Title Compound ◽  
Carboxyl Groups ◽  
Carboxyl Group ◽  
Amino Group ◽  
Aromatic Rings ◽  
Compound C

Geometric parameters of the title compound, C17H16ClNO3, are in the usual ranges. The two aromatic rings are almost perpendicular, with a dihedral angle of 89.26 (5)°. The carboxyl group is coplanar with the aromatic ring to which it is attached [dihedral angle = 1.70 (17)°]. The packing involves inversion-symmetric dimers bridged via hydrogen bonding of the carboxyl groups. In addition, there is an N—H...O hydrogen bond between the amino group and the carbonyl O atom.

scholarly journals 2,6-Bis(trifluoromethyl)benzoic acid

2009 ◽  
Vol 65 (6) ◽  
pp. o1217-o1217 ◽  
Author(s):  
John M. Tobin ◽  
Jason D. Masuda
Keyword(s):  
Hydrogen Bonding ◽  
Benzoic Acid ◽  
Title Compound ◽  
Carboxyl Groups ◽  
Dihedral Angles ◽  
Carboxyl Group ◽  
Asymmetric Unit ◽  
Compound C ◽  
Independent Molecules ◽  
Trifluoromethyl Groups

The title compound, C9H4F6O2, contains two molecules in the asymmetric unit, one of which exhibits disorder in both of its trifluoromethyl groups. The dihedral angles between the benzene ring and the carboxyl group are 71.5 (2) and 99.3 (2)° in the two independent molecules. The compound exhibits a catemeric structure resulting from intermolecular O—H...O hydrogen bonding between the carboxyl groups.

scholarly journals (E)-2-Methyl-6-{[(5-methylpyridin-2-yl)imino]methyl}phenol

IUCrData ◽  
2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Md. Azharul Arafath ◽  
Farook Adam ◽  
Mohd. R. Razali
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Zigzag Chain ◽  
Aromatic Rings ◽  
Methyl Group ◽  
Compound C

In the title compound, C14H14N2O, the dihedral angle between the aromatic rings is 5.54 (9)°. The conformation is reinforced by an intramolecular O—H...N hydrogen bond, which closes anS(6) ring. The pyridine N atom and methyl group lie to opposite sides of the molecule. In the crystal, the molecules are linked into a zigzag chain propagating in [0-11] by weak C—H...O hydrogen bonds.

scholarly journals Crystal structure of 2-{[1-(2-methyl-5-nitro-1H-imidazol-1-yl)propan-2-yloxy]carbonyl}benzoic acid

2014 ◽  
Vol 70 (12) ◽  
pp. o1237-o1238
Author(s):  
Hafiz Abdullah Shahid ◽  
Sajid Jahangir ◽  
Syed Adnan Ali Shah ◽  
Hamizah Mohd Zaki ◽  
Humera Naz
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzoic Acid ◽  
Dihedral Angle ◽  
Title Compound ◽  
Compound C

In the title compound, C15H15N3O6, the dihedral angle between the planes of the benzene and imidazole rings is 34.93 (10)°. An intramolecular C—H...O hydrogen bond is observed. In the crystal, O—H...N hydrogen bonds link the molecules into chains parallel to thecaxis.

scholarly journals (Z)-3-[(2-Aminobenzyl)amino]-1-phenylbut-2-en-1-one

2014 ◽  
Vol 70 (7) ◽  
pp. o742-o742
Author(s):  
Vedavalli Sairaj ◽  
Thothadri Srinivasan ◽  
Muthusamy Kandaswamy ◽  
Devadasan Velmurugan
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Aromatic Rings ◽  
Compound C ◽  
Ring Motif

In the title compound, C17H18N2O, the aromatic rings are almost normal to one another, making a dihedral angle of 89.00 (8)°. There is an intramolecular N—H...O hydrogen bond in the molecule enclosing anS(6) ring motif. In the crystal, molecules are linked by N—H...O hydrogen bonds, forming chains along [010].

scholarly journals Crystal structure of 4-chloro-2-{(E)-[(3,4-dimethylphenyl)imino]methyl}phenol

2015 ◽  
Vol 71 (6) ◽  
pp. o416-o416 ◽  
Author(s):  
Muhammad Salim ◽  
Muhammad Nawaz Tahir ◽  
Munawar Ali Munawar ◽  
Muhammad Shahid ◽  
Hazoor Ahmad Shad
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Dihedral Angle ◽  
Title Compound ◽  
Three Dimensional ◽  
Aromatic Rings ◽  
Acta Cryst ◽  
Π Interactions ◽  
Compound C ◽  
Dimensional Network

In the title compound, C15H14ClNO, which is isostructural with its bromo analogue [Tahiret al.(2012).Acta Cryst., E68, o2730], the dihedral angle between the planes of the aromatic rings is 2.71 (7)° and an intramolecular O—H...N hydrogen bond closes anS(6) ring. In the crystal, extremely weak C—H...π interactions link the molecules into a three-dimensional network.

scholarly journals N′-[(E)-3-Bromobenzylidene]pyrazine-2-carbohydrazide

2013 ◽  
Vol 69 (11) ◽  
pp. o1635-o1635 ◽  
Author(s):  
Mushtaq Ahmad ◽  
Shahid Hameed ◽  
M. Nawaz Tahir ◽  
Muhammad Anwar ◽  
Muhammad Israr
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Aromatic Rings ◽  
Compound C ◽  
Π Stacking

In the title compound, C12H9BrN4O, the dihedral angle between the aromatic rings is 12.16 (12)°. An intramolecular N—H...N hydrogen bond closes anS(5) ring. In the crystal, C—H...O hydrogen bonds link the molecules intoC(6) chains propagating in [010]. Very weak aromatic π–π stacking [centroid–centroid separations = 3.9189 (15) and 3.9357 (15) Å] is also observed.

scholarly journals N-(3-Chlorophenyl)-2-nitrobenzenesulfonamide

2012 ◽  
Vol 68 (8) ◽  
pp. o2576-o2576 ◽  
Author(s):  
U. Chaithanya ◽  
Sabine Foro ◽  
B. Thimme Gowda
Keyword(s):  
Hydrogen Bonding ◽  
Dihedral Angle ◽  
Title Compound ◽  
Aromatic Rings ◽  
Compound C

In the title compound, C12H9ClN2O4S, the dihedral angle between the aromatic rings is 73.65 (7)°. The amide H atom shows bifurcated hydrogen bonding, generating an intramolecularS(7) and an intermolecularC(4) motif.

scholarly journals Crystal structure of 3-[(2-acetylphenoxy)carbonyl]benzoic acid

2014 ◽  
Vol 70 (11) ◽  
pp. o1153-o1153 ◽  
Author(s):  
Mohammad Shoaib ◽  
Ismail Shah ◽  
Syed Wadood Ali Shah ◽  
Muhammad Nawaz Tahir ◽  
Shafi Ullah ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Carboxylic Acid ◽  
Benzoic Acid ◽  
Dihedral Angle ◽  
Title Compound ◽  
Aromatic Rings ◽  
Compound C

In the title compound, C16H12O5, synthesized from isopthaloyl chloride and 2′-hydroxyacetophenone, the dihedral angle between the planes of the aromatic rings is 71.37 (9)°. In the crystal, carboxylic acid inversion dimers generateR22(8) loops. The dimers are linked by C—H...O interactions, generating (101) sheets.

scholarly journals (2E)-1-(2-Thienyl)-3-(2,3,5-trichlorophenyl)prop-2-en-1-one

2007 ◽  
Vol 63 (11) ◽  
pp. o4422-o4423 ◽  
Author(s):  
B. Narayana ◽  
K. Mustafa ◽  
B. K. Sarojini ◽  
H. S. Yathirajan ◽  
Michael Bolte
Keyword(s):  
Hydrogen Bond ◽  
Double Bond ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Geometric Parameters ◽  
Aromatic Rings ◽  
Compound C ◽  
Carbonyl Bond

The geometric parameters of the title compound, C13H7Cl3OS, are in the usual ranges. The molecule is almost planar (r.m.s. deviation of all non-H atoms 0.193 Å). The dihedral angle between the two aromatic rings is 14.41 (7)°. The C=C double bond is trans configured. The bond between the carbonyl bond and the thienyl ring is in an eclipsed conformation. The crystal packing is stabilized by a weak C—H...O hydrogen bond.

scholarly journals Crystal structure of 2-benzamido-N-(2,2-diethoxyethyl)benzamide

2015 ◽  
Vol 71 (3) ◽  
pp. o214-o215
Author(s):  
Abdelaaziz Ouahrouch ◽  
Moha Taourirte ◽  
Hassan B. Lazrek ◽  
Joachim W. Engels ◽  
Michael Bolte
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Dihedral Angle ◽  
Title Compound ◽  
Molecular Conformation ◽  
Crystal Packing ◽  
Aromatic Rings ◽  
Peptide Bonds ◽  
Axis Direction ◽  
Compound C

In the title compound, C20H24N2O4, both peptide bonds adopt atransconfiguration with respect to the —N—H and —C=O groups. The dihedral angle between the aromatic rings is 53.58 (4)°. The molecular conformation is stabilized by an intramolecular N—H...O hydrogen bond. The crystal packing is characterized by zigzag chains of N—H...O hydrogen-bonded molecules running along theb-axis direction.

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