scholarly journals 1-[(2-Anilinoethyl)iminiomethyl]-2-naphtholate

2009 ◽  
Vol 65 (6) ◽  
pp. o1400-o1400 ◽  
Author(s):  
Yu-Mei Hao
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Methanol Solution ◽  
Compound C ◽  
Schiff Base Compound ◽  
Base Compound

The title Schiff base compound, C19H18N2O, was prepared by the reaction of equimolar quantities of 2-hydroxy-1-naphthaldehyde withN-phenylethane-1,2-diamine in a methanol solution. The molecule adopts a zwitterionic conformation with the naphthyl OH group deprotonated and the imine N atom protonated. An intramolecular N—H...O hydrogen bond forms between them. The dihedral angle between the benzene ring and the naphthyl system is 86.9 (2)°. In the crystal structure, molecules are linked through intermolecular N—H...O hydrogen bonds, forming chains running along thebaxis.

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.

scholarly journals 2-[(E)-(1,10-Phenanthrolin-5-yl)iminomethyl]phenol methanol monosolvate

2012 ◽  
Vol 68 (4) ◽  
pp. o1173-o1174
Author(s):  
Sema Öztürk Yíldírím ◽  
Nebahat Demirhan ◽  
Fikriye Elmalí ◽  
Ray J. Butcher
Keyword(s):  
Hydrogen Bond ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Solvent Molecule ◽  
Stacking Interactions ◽  
Compound C ◽  
The Mean ◽  
Schiff Base Compound ◽  
Base Compound

In the title multi-donor Schiff base compound, C19H13N3O·CH3OH, the dihedral angle between the mean planes of the phenanthroline and phenol rings is 59.3 (1)°. The Schiff base molecule is linked to the solvent molecule by an O—H...O hydrogen bond. In the crystal, the components are linked by O—H...N hydrogen bonds, weak O—H...N interactions and π–π stacking interactions [centroid–centroid distances = 3.701 (1) and 3.656 (1) Å].

scholarly journals Crystal structure of (E)-5-diethylamino-2-({[4-(dimethylamino)phenyl]imino}methyl)phenol

2015 ◽  
Vol 71 (7) ◽  
pp. o503-o503 ◽  
Author(s):  
C. Vidya Rani ◽  
G. Chakkaravarthi ◽  
G. Rajagopal
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Hydrogen Bond ◽  
Schiff Base ◽  
Dihedral Angle ◽  
Aromatic Rings ◽  
Compound C ◽  
Schiff Base Compound ◽  
Ring Motif ◽  
Base Compound

The title Schiff base compound, C19H25N3O, is approximately planar, with a dihedral angle of 9.03 (13)° between the planes of the aromatic rings, and has anEconformation about the N=C bond. The molecular structure is stabilized by an intramolecular O—H...N hydrogen bond, with anS(6) ring motif. In the crystal, molecules are linked by C—H...π interactions, forming sheets parallel to thebcplane.

scholarly journals Crystal structure of (Z)-3-benzyloxy-6-[(2-hydroxy-5-methylanilino)methylidene]cyclohexa-2,4-dien-1-one

2014 ◽  
Vol 70 (9) ◽  
pp. o957-o958 ◽  
Author(s):  
Nadir Ghichi ◽  
Ali Benosmane ◽  
Ali Benboudiaf ◽  
Hocine Merazig
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Membered Ring ◽  
Compound C ◽  
Schiff Base Compound ◽  
Ring Motif ◽  
Base Compound

In the title Schiff base compound, C21H19NO3, the conformation about the C=C bond isZ. The N—H group and carbonyl O atom form an intramolecular N—H...O hydrogen bond with anS(6) ring motif. The benzyloxy ring and the 2-hydroxy-5-methylphenyl ring are inclined to the central six-membered ring by 13.68 (9) and 9.13 (8)°, respectively, and to one another by 21.95 (9)°. In the crystal, molecules are linked by O—H...O hydrogen bonds, forming helical chains along [010].

scholarly journals 1-[(E)-(3-Hydroxy-4-methoxybenzylidene)amino]-3-methylthiourea

IUCrData ◽  
2016 ◽  
Vol 1 (10) ◽  
Author(s):  
Md. Azharul Arafath ◽  
Farook Adam ◽  
Mohd. R. Razali
Keyword(s):  
Schiff Base ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Intramolecular Hydrogen Bonds ◽  
Compound C ◽  
Schiff Base Compound ◽  
Intramolecular Hydrogen ◽  
Dimeric Aggregates ◽  
Base Compound

In the title thiosemicarbazone Schiff base compound, C10H13N3O2S, the dihedral angle between the benzene ring and methyl carbothioamide side arm was found to be 17.4 (4)°. The presence of two intramolecular hydrogen bonds is noted, namely hydroxy-O—H...O(methoxy) and amine-N—H...N(imine). In the crystal, pairwise amine-N—H...S hydrogen bonds give rise to centrosymmetric {...HNCS}2 synthons, which lead to dimeric aggregates.

scholarly journals 2-Chloro-N′-[(E)-(2-methoxy-1-naphthyl)methylene]benzohydrazide

2009 ◽  
Vol 65 (6) ◽  
pp. o1254-o1254
Author(s):  
Chunbao Tang
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Ring System ◽  
Compound C ◽  
Naphthyl Ring ◽  
Graph Set ◽  
Schiff Base Compound ◽  
Base Compound

In the molecule of the title Schiff base compound, C19H15ClN2O2, the dihedral angle between the benzene ring and naphthyl ring system is 77.1 (2)°. In the crystal structure, centrosymmetrically related molecules are linked into dimers through pairs of intermolecular N–H...O hydrogen bonds, generating rings of graph setR22(8).

3,3′-Dimethoxy-2,2′-[o-phenylenebis(nitrilomethylidyne)]diphenol

2007 ◽  
Vol 63 (11) ◽  
pp. o4462-o4462 ◽  
Author(s):  
Mohammad Hossein Habibi ◽  
Morteza Montazerozohori ◽  
Reza Mokhtari ◽  
Ross W. Harrington ◽  
William Clegg
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Methoxy Group ◽  
Dihedral Angles ◽  
Compound C ◽  
Schiff Base Compound ◽  
Phenol Ring ◽  
Base Compound

The title Schiff base compound, C19H20N2O4, was synthesized by the reaction of o-phenylenediamine with 6-methoxysalicylaldehyde. The central benzene ring makes dihedral angles of 2.78 (5) and 73.98 (5)° with the two terminal phenol rings. Each methoxy group is coplanar with the attached phenol ring. The crystal structure is stabilized by intramolecular O—H...N and intermolecular C—H...O hydrogen bonds.

scholarly journals 4-Chloro-2-[(4-chlorobenzylidene)amino]phenol

2012 ◽  
Vol 68 (6) ◽  
pp. o1696-o1696 ◽  
Author(s):  
Kürşat Efil ◽  
Fatih Şen ◽  
Yunus Bekdemir ◽  
Orhan Büyükgüngör
Keyword(s):  
Hydrogen Bond ◽  
Schiff Base ◽  
Double Bond ◽  
Dihedral Angle ◽  
One Dimensional ◽  
Compound C ◽  
Benzene Rings ◽  
Amino Phenol ◽  
Schiff Base Compound ◽  
Base Compound

In the title Schiff base compound, C13H9Cl2NO, the molecule displays an E conformation about the imine C=N double bond, with a dihedral angle of 8.09 (11)° between the two benzene rings. In the crystal, molecules are linked by a single O—H...O hydrogen bond, giving one-dimensional chains which extend along (100).

scholarly journals (E)-2-{[4-(Dimethylamino)benzylidene]amino}-5-nitrophenol

2014 ◽  
Vol 70 (5) ◽  
pp. o598-o599 ◽  
Author(s):  
Yousef Hijji ◽  
Ray J. Butcher ◽  
Jerry P. Jasinski
Keyword(s):  
Hydrogen Bond ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Nitro Group ◽  
Asymmetric Unit ◽  
Compound C ◽  
Benzene Rings ◽  
Schiff Base Compound ◽  
Imine Bond ◽  
Base Compound

The title Schiff base compound, C15H15N3O3, crystallizes with two molecules (AandB) in the asymmetric unit. Each molecule adopts anEconformation around the C= N imine bond. The two molecules have minor differences in their conformations. In moleculeA, the dihedral angle between the nitro group and its benzene ring is 2.1 (2)° and that between the two benzene rings is 0.88 (7)°, while the corresponding angles for moleculeBare 5.7 (1) and 2.45 (6)°, respectively. In each molecule, there is an intramolecular O—H...N hydrogen bond. In the crystal, inversion-related molecules are linkedviaO—H...O hydrogen bonds formingA–AandB–Bdimers. These dimers are linkedviaC—H...O hydrogen bonds involving the nitro O atoms, formingA–A–AandB–B–Bslabs that lie parallel to one another and to (010).

scholarly journals Crystal structure of (E)-2,6-di-tert-butyl-4-{[2-(2,4-dinitrophenyl)hydrazinylidene]methyl}phenol

2017 ◽  
Vol 73 (2) ◽  
pp. 96-98 ◽  
Author(s):  
Md. Serajul Haque Faizi ◽  
Necmi Dege ◽  
Ashanul Haque ◽  
Valentina A. Kalibabchuk ◽  
Mustafa Cemberci
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Schiff Base ◽  
Mirror Plane ◽  
Hydrogen Atoms ◽  
Compound C ◽  
Intermolecular Contacts ◽  
Schiff Base Compound ◽  
Ring Motif ◽  
Base Compound

The essential part (including all the non-hydrogen atoms except two methyl carbons) of the molecule of the title compound, C21H26N4O5, lies on a mirror plane, which bisects thet-butyl groups. The conformation of the C=N bond of this Schiff base compound isE, and there is an intramolecular N—H...O hydrogen bond present, forming anS(6) ring motif. In the crystal, molecules are linkedviaO—H...O hydrogen bonds, forming zigzag chains propagating along thea-axis direction. There are no other significant intermolecular contacts present.

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