scholarly journals Crystal structure of 2-{[2-methoxy-5-(trifluoromethyl)phenyl]iminomethyl}-4-nitrophenol

2015 ◽  
Vol 71 (7) ◽  
pp. o466-o467 ◽  
Author(s):  
Nevzat Karadayı ◽  
Songül Şahin ◽  
Yavuz Köysal ◽  
Emine Coşkun ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Helical Chain ◽  
Screw Axis ◽  
Imine Group ◽  
Compound C ◽  
Benzene Rings ◽  
Axis Parallel

In the title compound, C15H11F3N2O4, the N=C bond of the central imine group adopts anEconformation. The dihedral angle between two benzene rings is 6.2 (2)°. There is an intramolecular bifurcated O—H...(N,O) hydrogen bond withS(6) andS(9) ring motifs. In the crystal, molecules are linked by C—H...O hydrogen bonds into a helical chain along the 31screw axis parallel toc. The –CF3group shows rotational disorder over two sites, with occupancies of 0.39 (2) and 0.61 (2).

scholarly journals Crystal structure of 2-methyl-N-{[2-(pyridin-2-yl)ethyl]carbamothioyl}benzamide

2015 ◽  
Vol 71 (9) ◽  
pp. o636-o636
Author(s):  
Nadiah Ameram ◽  
Farook Adam
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Thiourea Derivative ◽  
Π Interactions ◽  
Compound C ◽  
Benzene Rings ◽  
Ring Motif

In the title compound, C16H17N3OS, a benzoyl thiourea derivative, the planes of the pyridine and benzene rings are inclined to one another by 66.54 (9)°. There is an intramolecular N—H...O hydrogen bond present forming anS(6) ring motif. In the crystal, molecules are linkedviapairs of N—H...N hydrogen bonds, forming inversion dimers, which are reinforced by pairs of C—H...S hydrogen bonds. The dimers are linkedviaC—H...π interactions, forming ribbons along [010].

scholarly journals Crystal structure of (E)-4-{[2-(2,4-dinitrophenyl)hydrazin-1-ylidene]methyl}-3-methyl-1-phenyl-5-(1H-pyrrol-1-yl)-1H-pyrazole

2014 ◽  
Vol 70 (12) ◽  
pp. o1246-o1247 ◽  
Author(s):  
Joel T. Mague ◽  
Shaaban K. Mohamed ◽  
Mehmet Akkurt ◽  
Hussein M. S. El-Kashef ◽  
Mustafa R. Albayati
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Pyrazole Ring ◽  
Dihedral Angles ◽  
Extended Conformation ◽  
Compound C ◽  
Benzene Rings

The title compound, C21H17N7O4, is in an `extended' conformation aided by an intramolecular N—H...O hydrogen bond. The pyrazole ring makes dihedral angles of 29.17 (6), 65.47 (4) and 9.91 (7)°, respectively, with the phenyl, pyrrole and benzene rings. In the crystal, molecules are connected by pairs of N—H...O and C—H...O hydrogen bonds, forming inversion dimers which associate into ribbons running along thebaxis through complementary C—H...O interactions.

scholarly journals Crystal structure of (E)-N-(3,4-dimethoxybenzylidene)morpholin-4-amine

2014 ◽  
Vol 70 (9) ◽  
pp. o935-o935 ◽  
Author(s):  
Sevim Türktekin Çelikesir ◽  
Mehmet Akkurt ◽  
Aliasghar Jarrahpour ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Least Squares ◽  
Title Compound ◽  
Chair Conformation ◽  
Screw Axis ◽  
Compound C ◽  
Axis Parallel ◽  
Morpholine Ring ◽  
Supramolecular Chains

In the title compound, C13H18N2O3, the benzene ring makes a dihedral angle of 17.19 (11)° with the least-squares plane formed by the four C atoms of the morpholine ring, which adopts a chair conformation. In the crystal, C—H...N hydrogen bonds link the molecules into supramolecular chains running along a 21screw axis parallel to theb-axis direction. Weak C—H...π interactions are also observed.

scholarly journals Crystal structure of 3-chloro-N-(2-nitrophenyl)benzamide

2015 ◽  
Vol 71 (9) ◽  
pp. o674-o674
Author(s):  
Rodolfo Moreno-Fuquen ◽  
Alexis Azcárate ◽  
Alan R. Kennedy
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Dihedral Angles ◽  
Compound C ◽  
Benzene Rings ◽  
The Mean ◽  
Amide Fragment ◽  
Short Contacts

In the title compound, C13H9ClN2O3, the mean plane of the central amide fragment (r.m.s. deviation = 0.016 Å) subtends dihedral angles of 15.2 (2) and 8.2 (2)° with the chloro- and nitro-substituted benzene rings, respectively. An intramolecular N—H...O hydrogen bond generates anS(6) ring. In the crystal, molecules are linked by weak C—H...O hydrogen bonds, formingC(7) chains which propagate along [010], but no Cl...Cl short contacts are observed.

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.

scholarly journals Crystal structure of 2-{(E)-[(2-hydroxyphenyl)iminiumyl]methyl}-4-methylphenolate

2015 ◽  
Vol 71 (5) ◽  
pp. o288-o288
Author(s):  
Suresh Shalini ◽  
C. R. Girija ◽  
Mukesh M. Jotani ◽  
C. D. Sathish ◽  
T. V. Venkatesha
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Solid State ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Phenol Group ◽  
Compound C ◽  
Benzene Rings

The title compound, C14H13NO2, exists as a zwitterion in the solid state, with the H atom of the phenol group transferred to the imine N atom. The dihedral angle between the planes of the benzene rings is 10.13 (9)°. Intramolecular N—H...O hydrogen bond generateS(6) andS(5) loops. In the crystal, molecules are connected by O—H...O hydrogen bonds, generatingC(9) chains propagating in the [010] direction.

scholarly journals Crystal structure of (3S)-3-acetoxy-17-(pyridin-3-yl)androsta-5,16-diene

2015 ◽  
Vol 71 (3) ◽  
pp. o146-o147 ◽  
Author(s):  
Shengjun Zhou ◽  
Huaqi Huang ◽  
Rongbin Huang
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Helical Chain ◽  
Screw Axis ◽  
Axis Direction ◽  
Compound C

In the title compound, C26H33NO2[systematic name: (3S,8R,9S,10R,13S,14S)-10,13-dimethyl-17-(pyridin-3-yl)-2,3,4,7,8,9,10,11,12,13,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl acetate], the steroidA,B,CandDrings adopt chair, half-chair, chair and envelope conformations, respectively. The flap atom of the envelope is the methine C atom fused with the C ring. In the crystal, adjacent molecules, generated by a 21screw axis, are linked by weak C—H...O hydrogen bonds, forming aC(16) helical chain running along thec-axis direction.

6,9-Dibromo-2a,10b-diphenyl-2a,5,10,10b-tetrahydro-2H,3H-2,3,4a,10a-tetraazabenzo[g]cyclopenta[cd]azulene-1,4-dione monohydrate

2006 ◽  
Vol 62 (5) ◽  
pp. o1754-o1755
Author(s):  
Neng-Fang She ◽  
Sheng-Li Hu ◽  
Hui-Zhen Guo ◽  
An-Xin Wu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Compound ◽  
Supramolecular Structure ◽  
Hydrogen Bond Donor ◽  
Hydrogen Bond Acceptor ◽  
Compound C ◽  
Bifurcated Hydrogen Bond

The title compound, C24H18Br2N4O2·H2O, forms a supramolecular structure via N—H...O, O—H...O and C—H...O hydrogen bonds. In the crystal structure, the water molecule serves as a bifurcated hydrogen-bond acceptor and as a hydrogen-bond donor.

scholarly journals Crystal structure of 2-nitro-N-(5-nitro-1,3-thiazol-2-yl)benzamide

2014 ◽  
Vol 70 (12) ◽  
pp. o1252-o1252 ◽  
Author(s):  
Rodolfo Moreno-Fuquen ◽  
Diego F. Sánchez ◽  
Javier Ellena
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Dihedral Angles ◽  
Two Dimensional ◽  
Compound C ◽  
Dimensional Network ◽  
Benzene Rings ◽  
The Mean ◽  
Amide Fragment

In the title compound, C10H6N4O5S, the mean plane of the non-H atoms of the central amide fragment C—N—C(=O)—C [r.m.s. deviation = 0.0294 Å] forms dihedral angles of 12.48 (7) and 46.66 (9)° with the planes of the thiazole and benzene rings, respectively. In the crystal, molecules are linked by N—H...O hydrogen bonds, forming chains along [001]. In addition, weak C—H...O hydrogen bonds link these chains, forming a two-dimensional network, containingR44(28) ring motifs parallel to (100).

scholarly journals Crystal structure of 5-[(4-carboxybenzyl)oxy]isophthalic acid

2016 ◽  
Vol 72 (8) ◽  
pp. 1219-1222
Author(s):  
Md. Serajul Haque Faizi ◽  
Musheer Ahmad ◽  
Akram Ali ◽  
Vadim A. Potaskalov
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Three Dimensional ◽  
Molecular Shape ◽  
Isophthalic Acid ◽  
Compound C ◽  
Dimensional Network ◽  
Benzene Rings

The molecular shape of the title compound, C16H12O7, is bent around the central CH2—O bond. The two benzene rings are almost perpendicular to one another, making a dihedral angle of 87.78 (7)°. In the crystal, each molecule is linked to three others by three pairs of O—H...O hydrogen bonds, forming undulating sheets parallel to thebcplane and enclosingR22(8) ring motifs. The sheets are linked by C—H...O hydrogen bonds and C—H...π interactions, forming a three-dimensional network.

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