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.

2,4,4-Trimethyl-N-phenyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine-1-carboxamide

2007 ◽  
Vol 63 (11) ◽  
pp. o4264-o4264 ◽  
Author(s):  
A Thiruvalluvar ◽  
S Ponnuswamy
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Boat Conformation ◽  
Equatorial Orientation ◽  
Methyl Group ◽  
Compound C ◽  
Benzene Rings

In the title compound, C19H23N3O, the seven-membered diazepine ring adopts a boat conformation. The phenylcarbamoyl group is coplanar with the N atom and its two attached C atoms. The methyl group at position 2 has an equatorial orientation. The dihedral angle between the two benzene rings is 81.07 (9)°. The crystal structure is stabilized by intramolecular C—H...O and intermolecular N—H...O hydrogen bonds.

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 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.

2-(4-Bromophenyl)-5,7-dimethyl-3-methylsulfinyl-1-benzofuran

2007 ◽  
Vol 63 (11) ◽  
pp. o4282-o4282 ◽  
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Byeng Wha Son ◽  
Uk Lee
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Dihedral Angle ◽  
Title Compound ◽  
Halogen Bond ◽  
Methyl Group ◽  
Compound C

The title compound, C17H15BrO2S, was prepared by the oxidation of 2-(4-bromophenyl)-5,7-dimethyl-3-methylsulfanyl-1-benzofuran using 3-chloroperbenzoic acid. The 4-bromophenyl ring is rotated out of the benzofuran plane, with a dihedral angle of 19.3 (2)°. The O atom and the methyl group of the methylsulfinyl substituent lie on opposite sides of the plane of the benzofuran fragment. The crystal structure is stabilized by a C—H...O hydrogen bond, and a Br...O halogen bond with a Br...O distance of 3.209 (6)Å and a nearly linear C—Br...O angle of 165.1 (2)°.

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.

Ethyl 4-{5-[1-(hydroxymethyl)ethylaminocarbonyl]-1,3-benzodioxol-4-yl}-7-methoxy-3-benzodioxole-5-carboxylate

2006 ◽  
Vol 62 (4) ◽  
pp. o1269-o1270 ◽  
Author(s):  
Xiu-Xiang Qi ◽  
Ji-Shuan Suo ◽  
Li-Min Wang ◽  
Xiao-He Guo ◽  
Sen-Xiang Cheng
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Dihedral Angle ◽  
Title Compound ◽  
Hydrogen Bond Interactions ◽  
Compound C ◽  
Benzene Rings

In the title compound, C23H25NO10, the five-membered rings adopt envelope conformations and the dihedral angle between the two benzene rings is 67.1 (7)°. The crystal structure is stabilized by intramolecular N—H...O and intermolecular O—H...O hydrogen-bond interactions.

scholarly journals Crystal structure of 3-[(E)-(2-hydroxy-3-methoxybenzylidene)amino]-1-methyl-1-phenylthiourea

2016 ◽  
Vol 72 (5) ◽  
pp. 608-611
Author(s):  
Rajeswari Gangadharan ◽  
Mathiyan Muralisankar ◽  
Anandaram Sreekanth ◽  
Abdullakutty Anees Rahman ◽  
K. Sethusankar
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Asymmetric Unit ◽  
Compound C ◽  
Benzene Rings ◽  
Independent Molecules

In the asymmetric unit of the title compound, C16H17N3O2S, there are two independent molecules (AandB), which show anEconformation with respect to the C=N bond. An intramolecular O—H...N hydrogen bond with anS(6) motif stabilizes the molecular structure. The terminal phenyl and benzene rings are almost orthogonal to each other, the dihedral angle being 87.47 (13)° for moleculeAand 89.86 (17)° for moleculeB. In the crystal, weak bifurcated N—H...(O,O) hydrogen bonds link the two independent molecules, forming a supramolecular chain with aC21(14)[R21(5)] motif along thebaxis. A weak C—H...O interaction is also observed in the chain.

1-[4-(3,5-Dimethoxy-2-methylphenoxy)-2,6-dihydroxy-3-methylphenyl]ethanone

2000 ◽  
Vol 57 (1) ◽  
pp. o18-o19 ◽  
Author(s):  
Chatchanok Karalai ◽  
Nisakorn Saewon ◽  
Kan Chantrapromma ◽  
Suchada Chantrapromma ◽  
Hoong-Kun Fun ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Dihedral Angle ◽  
Title Compound ◽  
Hydroxyl Group ◽  
Compound C ◽  
Methoxy Groups ◽  
Benzene Rings ◽  
Acetyl Group

The benzene rings of the title compound, C18H20O6, are nearly perpendicular to each other [dihedral angle 75.2 (1)°]. The two methoxy groups and the acetyl group are almost coplanar to their attached benzene rings. One hydroxyl group is involved in an intramolecular O—H...O hydrogen bond with the adjacent acetyl O atom. The crystal structure is stabilized by intermolecular O—H...O contacts.

scholarly journals (4-Fluorophenyl)(2-hydroxy-5-methylphenyl)methanone

2014 ◽  
Vol 70 (3) ◽  
pp. o286-o286
Author(s):  
C. S. Dileep ◽  
V. Lakshmi Ranganatha ◽  
N. K. Lokanath ◽  
S. A. Khanum ◽  
M. A. Sridhar
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Dihedral Angle ◽  
Title Compound ◽  
Van Der Waals ◽  
Dihedral Angles ◽  
Compound C ◽  
Benzene Rings

In the title compound, C14H11FO2, the dihedral angles beteen the central C3O ketone residue and the fluoro- and hydroxy-substituted benzene rings are 50.44 (9) and 12.63 (10)°, respectively. The planes of the benzene rings subtend a dihedral angle of 58.88 (9)° and an intramolecular O—H...O hydrogen bond closes anS(6) ring. No directional interactions beyond van der Waals packing contacts were identified in the crystal structure.

scholarly journals Crystal structure of 4-bromo-N-(2-bromo-3-nitrobenzyl)-2-nitronaphthalen-1-amine

2014 ◽  
Vol 70 (9) ◽  
pp. o960-o961
Author(s):  
Vijay P. Singh ◽  
Krishnan Venkateshwaran ◽  
Harkesh B. Singh ◽  
Ray J. Butcher
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Three Dimensional ◽  
Amine Group ◽  
Ring Plane ◽  
Compound C ◽  
Benzene Rings

In the title compound, C17H11Br2N3O4, the dihedral angle between the planes of the naphthalene system and the benzene ring is 52.86 (8)°. The nitro substituent and the attached naphthalene system are almost coplanar [dihedral angle = 5.6 (4)°], probably as a consequence of an intramolecular N—H...O hydrogen bond with the amine group. The nitro substituent attached to the benzene ring is disordered over two sets of sites with occupancies of 0.694 (3) and 0.306 (3). The major component deviates significantly from the ring plane [dihedral angle = 53.6 (2)°]. In the crystal, the molecules are linked into a three-dimensional array by extensive π–π interactions involving both the naphthalene and benzene rings [range of centroid–centroid distances = 3.5295 (16)–3.9629 (18) Å] and C—H...O interactions involving the methylene H atoms and the phenyl-attached nitro group.

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