scholarly journals 5-(4-Methoxyphenyl)-1,3,4-oxadiazol-2-amine

IUCrData ◽  
2016 ◽  
Vol 1 (12) ◽  
Author(s):  
S. Naveen ◽  
P. Naveen ◽  
Zabiulla ◽  
H. R. Manjunath ◽  
N. K. Lokanath ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Aromatic Rings ◽  
Compound C

In the title compound, C9H9N3O2, the dihedral angle between the aromatic rings is 8.64 (10)°. The crystal structure features inversion-related dimers linked by pairs of N—H...N hydrogen bonds, generatingR22(8) loops. A further N—H...N hydrogen bond links the dimers into (100) sheets.

scholarly journals Crystal structure of (E)-N'-[1-(4-aminophenyl)ethylidene]-2-hydroxy-5-iodobenzohydrazide methanol monosolvate

2018 ◽  
Vol 74 (7) ◽  
pp. 910-914
Author(s):  
Cong Nguyen Tien ◽  
Huong Le Thi Thu ◽  
Thin Nguyen Van ◽  
Trung Vu Quoc ◽  
Manh Vu Quoc ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Hirshfeld Surface ◽  
Stacking Interactions ◽  
Aromatic Rings ◽  
Compound C

In the title compound, C15H14IN3O2·CH3OH, two aromatic rings are linked by an N-substituted hydrazide function. The dihedral angle between the aromatic rings is 10.53 (8)°. The stereochemistry about the imine function is E. The methanol molecule forms an O—H...O hydrogen bond to the hydrazide O atom. In the crystal, chains of molecules running along the c-axis direction are formed by O—H...O hydrogen bonds. Adjacent chains are linked through N—H...O hydrogen bonds and π–π stacking interactions. The intermolecular interactions in the crystal packing were investigated using Hirshfeld surface analysis, which indicated that the most significant contacts are H...H (38.2%), followed by C...H/H...C (20.6%), O...H/H...O (11.1%) and I...H/H...I (9.7%).

scholarly journals Crystal structure of (E)-2-{[(4-anilinophenyl)imino]methyl}-4-nitrophenol

2017 ◽  
Vol 73 (2) ◽  
pp. 112-114 ◽  
Author(s):  
Md. Serajul Haque Faizi ◽  
Ashanul Haque ◽  
Valentina A. Kalibabchuk
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Aromatic Rings ◽  
Compound C

In the title compound, C19H15N3O3, which crystallizes as the phenol–imine tautomer, the dihedral angle between the aromatic rings bridged by the NH unit is 47.16 (16)°. The dihedral angle between the rings bridged by the imine unit is 6.24 (15)°; this near coplanarity is reinforced by an intramolecular O—H...N hydrogen bond, which generates anS(6) ring. In the crystal, N—H...O hydrogen bonds generate [201]C(13) chains. The chains are reinforced and cross-linked by C—H...O interactions to generate (001) sheets.

scholarly journals Crystal structure of diethyl [(4-chloroanilino)(4-hydroxyphenyl)methyl]phosphonateN,N-dimethylformamide monosolvate

2014 ◽  
Vol 70 (9) ◽  
pp. o919-o920
Author(s):  
Qing-Ming Wang ◽  
Ming-Juan Zhu ◽  
Jin-Ming Yang ◽  
Shan-Shan Wang ◽  
Yan-Fang Shang
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Double Layers ◽  
Aromatic Rings ◽  
Compound C

In the title compound, C17H21ClNO4P·C3H7NO, the dihedral angle formed by the aromatic rings is 83.98 (7)°. In the crystal, O—H...O, N—H...O and C—H...O hydrogen bonds link the molecules into double layers parallel to (011).

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 1-benzyl-4-formyl-1H-pyrrole-3-carboxamide

2016 ◽  
Vol 72 (2) ◽  
pp. 133-135
Author(s):  
Qi-Di Zhong ◽  
Sheng-Quan Hu ◽  
Hong Yan
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Π Interactions ◽  
Bond Forming ◽  
Compound C ◽  
The Mean ◽  
Ring Motif

In the title compound, C13H12N2O2(I), the mean planes of the pyrrole and benzyl rings are approximately perpendicular, forming a dihedral angle of 87.07 (4) °. There is an intramolecular N—H...O hydrogen bond forming an S(7) ring motif. In the crystal, molecules are linkedviaa pair of N—H...O hydrogen bonds forming inversion dimers. C—H...O hydrogen bonds link the dimers into chains along direction [10-1]. The chains are further linked by weak C—H...π interactions forming layers parallel to theacplane.

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 Crystal structure of (E)-2-{[(4-anilinophenyl)imino]methyl}phenol

2015 ◽  
Vol 71 (1) ◽  
pp. 28-30 ◽  
Author(s):  
Md. Serajul Haque Faizi ◽  
Turganbay S. Iskenderov ◽  
Natalia O. Sharkina
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Asymmetric Unit ◽  
Aromatic Rings ◽  
Compound C ◽  
Independent Molecules ◽  
Phenol Ring

The title compound, C19H16N2O, crystallized with two independent molecules (AandB) in the asymmetric unit. There is an intramolecular O—H...N hydrogen bond in each molecule with the phenol ring being inclined to the central benzene ring by 4.93 (14) and 7.12 (14)° in moleculesAandB, respectively. The conformation of the two molecules differs essentially in the orientation of the terminal aminophenyl ring with respect to the central benzene ring; this dihedral angle is 50.51 (4)° in moleculeAand 54.61 (14)° in moleculeB. The two outer aromatic rings are inclined to one another by 51.39 (14) and 49.88 (14)° in moleculesAandB, respectively. In the crystal, molecules are connected by N—H...O hydrogen bonds generating –A-B–A–B– zigzag chains extending along [010]. The chains are linkedviaC—H...π interactions involving neighbouringAmolecules, forming slabs lying parallel to (100).

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.

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