ChemInform Abstract: SYNTHESIS OF DIMERS OF 2-PHOSPHABENZOXAZOLES CONTAINING A NITRO GROUP IN THE BENZENE RING

1978 ◽  
Vol 9 (22) ◽  
Author(s):  
N. A. TIKHONINA ◽  
V. A. GILYAROV ◽  
M. I. KABACHNIK
Keyword(s):  
Nitro Group ◽  
Benzene Ring

scholarly journals Crystal structure of (3E)-3-(2,4-dinitrophenoxymethyl)-4-phenylbut-3-en-2-one

2014 ◽  
Vol 70 (9) ◽  
pp. o1051-o1052 ◽  
Author(s):  
Ignez Caracelli ◽  
Stella H. Maganhi ◽  
Paulo J. S. Moran ◽  
Bruno R. S. de Paula ◽  
Felix N. Delling ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Double Bond ◽  
Nitro Group ◽  
Benzene Ring ◽  
Torsion Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Aromatic Rings ◽  
Compound C ◽  
The One

In the title compound, C17H14N2O6, the conformation about the C=C double bond [1.345 (2) Å] isE, with the ketone moiety almost coplanar [C—C—C—C torsion angle = 9.5 (2)°] along with the phenyl ring [C—C—C—C = 5.9 (2)°]. The aromatic rings are almost perpendicular to each other [dihedral angle = 86.66 (7)°]. The 4-nitro moiety is approximately coplanar with the benzene ring to which it is attached [O—N—C—C = 4.2 (2)°], whereas the one in theorthoposition is twisted [O—N—C—C = 138.28 (13)°]. The molecules associateviaC—H...O interactions, involving both O atoms from the 2-nitro group, to form a helical supramolecular chain along [010]. Nitro–nitro N...O interactions [2.8461 (19) Å] connect the chains into layers that stack along [001].

scholarly journals N-(4-Ethoxy-2,5-dinitrophenyl)acetamide

IUCrData ◽  
2020 ◽  
Vol 5 (8) ◽  
Author(s):  
Sannihith N. Uppu ◽  
Ogad A. Agu ◽  
Curtistine J. Deere ◽  
Frank R. Fronczek
Keyword(s):  
Hydrogen Bond ◽  
Nitro Group ◽  
Benzene Ring ◽  
Title Compound ◽  
The Other ◽  
Ring Plane ◽  
Torsion Angles ◽  
Compound C ◽  
Bifurcated Hydrogen Bond

In the title compound, C10H11N3O6, the torsion angles about the bonds to the benzene ring are less than 4°, except for the nitro groups, which are twisted out of the ring plane by 25.27 (3) and 43.63 (2)°. The N—H group forms a bifurcated hydrogen bond, with an intramolecular component to a nitro group O atom and an intermolecular component to the other nitro group, thereby forming chains propagating in the [010] direction. Several weak C—H...O interactions are also present.

scholarly journals 4-Formyl-2-nitrophenyl 2-chlorobenzoate

2013 ◽  
Vol 69 (12) ◽  
pp. o1806-o1806 ◽  
Author(s):  
Rodolfo Moreno-Fuquen ◽  
Geraldine Hernandez ◽  
Javier Ellena ◽  
Carlos A. De Simone ◽  
Juan C. Tenorio
Keyword(s):  
Hydrogen Bonds ◽  
Nitro Group ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ester Group ◽  
Dihedral Angles ◽  
Compound C ◽  
Benzene Rings ◽  
The Mean

In the title compound, C14H8ClNO5, the benzene rings form a dihedral angle of 19.55 (9)°. The mean plane of the central ester group [r.m.s. deviation = 0.024 Å] forms dihedral angles of 53.28 (13) and 36.93 (16)°, respectively, with the nitro- and chloro-substituted rings. The nitro group forms a dihedral angle of 19.24 (19)° with the benzene ring to which it is attached. In the crystal, molecules are linked by weak C—H...O hydrogen bonds, formingC(7) chains, which run along [100].

scholarly journals Crystal structure and thermal behaviour of pyridinium styphnate

2015 ◽  
Vol 71 (2) ◽  
pp. 117-120 ◽  
Author(s):  
Selvarasu Muthulakshmi ◽  
Doraisamyraja Kalaivani
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Nitro Group ◽  
Benzene Ring ◽  
Three Dimensional ◽  
High Energy ◽  
High Energy Density ◽  
Dimensional Structure ◽  
Molecular Salt ◽  
Ring Motif

In the crystal structure of the title molecular salt, C5H6N+·C6H2N3O8−(systematic name: pyridinium 3-hydroxy-2,4,6-trinitrophenolate), the pyridinium cation and the 3-hydroxy-2,4,6-trinitrophenolate anion are linked through bifurcated N—H...(O,O) hydrogen bonds, forming anR12(6) ring motif. The nitro groupparawith respect to phenolate ion forms an intramolecular hydrogen bond with the adjacent phenolic –OH group, which results in anS(6) ring motif. The nitro group flanked by the phenolate ion and the phenolic –OH group deviates noticeably from the benzene ring, subtending a dihedral angle of 89.2 (4)°. The other two nitro groups deviate only slightly from the plane of the benzene ring, making dihedral angles of 2.8 (4) and 3.4 (3)°. In the crystal, the 3-hydroxy-2,4,6-trinitrophenolate anions are linked through O—H...O hydrogen bonds, forming chains along [100]. These anionic chains, to which the cations are attached, are linkedviaC—H...O hydrogen bonds, forming a three-dimensional structure. Impact friction sensitivity tests and TGA/DTA studies on the title molecular salt imply that it is an insensitive high-energy-density material.

scholarly journals 2-[1-(4-Bromophenyl)-2-nitroethyl]hexanoic acid

2014 ◽  
Vol 70 (5) ◽  
pp. o518-o518
Author(s):  
Yanpeng Zhang ◽  
Can Zhang ◽  
Ai-Bao Xia
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Carboxylic Acid ◽  
Nitro Group ◽  
Benzene Ring ◽  
Acid Group ◽  
Hexanoic Acid ◽  
Dihedral Angles ◽  
Carboxylic Acid Group

In the crystal structure of the title compoud, C14H18BrNO4, molecules are linked by a strong O—H...O hydrogen bond and weaker C—H...O interactions. The benzene ring makes dihedral angles of 3.67 (3) and 72.63 (3)° with the carboxylic acid group and the nitro group, respectively.

scholarly journals 6-Nitro-1,3-benzothiazole-2(3H)-thione

2013 ◽  
Vol 69 (2) ◽  
pp. o171-o171
Author(s):  
Qi-Ming Qiu ◽  
Yang-Zhe Cui ◽  
Yin-Hua Zhao ◽  
Qiong-Hua Jin ◽  
Cun-Lin Zhang
Keyword(s):  
Hydrogen Bonds ◽  
Nitro Group ◽  
Benzene Ring ◽  
Crystal Packing ◽  
Π Interactions ◽  
Title Molecule

In the title molecule, C7H4N2O2S2, the nitro group is twisted by 5.5 (1)° from the plane of the attached benzene ring. In the crystal, N—H...S hydrogen bonds link pairs of molecules into inversion dimers, which are linked by weak C—H...O interactions into sheets parallel to (101). The crystal packing exhibits short intermolecular S...O contacts of 3.054 (4) Å and π–π interactions of 3.588 (5) Å between the centroids of the five- and six-membered rings of neighbouring molecules.

scholarly journals Crystal structure of 4,4′-dinitro-[1,1′-biphenyl]-2-amine

2017 ◽  
Vol 73 (4) ◽  
pp. 550-552
Author(s):  
Md. Serajul Haque Faizi ◽  
Ashanul Haque ◽  
Necmi Dege ◽  
Syed Imran Hasan ◽  
Mustafa Dege ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Nitro Group ◽  
Benzene Ring ◽  
Three Dimensional ◽  
Bond Forming ◽  
Biphenyl Derivative ◽  
Benzene Rings ◽  
Ring Motif

In the title biphenyl derivative, C12H9N3O4, the dihedral angle between the benzene rings is 52.84 (10)°. The nitro group attached to the benzene ring is inclined to the ring by 4.03 (2)°, while the nitro group attached to the amino-substituted benzene ring is inclined to the ring by 8.84 (2)°. In the crystal, molecules are linked by two pairs of N—H...O hydrogen bonds, forming chains propagating along [101]. Within the chains, these N—H...O hydrogen bonds result in the formation ofR22(20) andR22(14) ring motifs. The latter ring motif is reinforced by a pair of C—H...O hydrogen bonds, enclosingR21(6) ring motifs. The chains are linked by a second C—H...O hydrogen bond, forming a three-dimensional supramolecular structure.

scholarly journals Cystal structre of 5-hydroxy-2-nitrobenzaldehyde

2015 ◽  
Vol 71 (5) ◽  
pp. o328-o329
Author(s):  
Huma Bano ◽  
Sammer Yousuf
Keyword(s):  
Hydrogen Bonds ◽  
Nitro Group ◽  
Benzene Ring ◽  
Title Compound ◽  
Three Dimensional ◽  
Aldehyde Group ◽  
Dimensional Structure ◽  
Three Dimensional Structure ◽  
Compound C

In the title compound, C7H5NO4, the nitro group and the aldehyde group are inclined to the benzene ring by 16.6 (3) and 15.6 (3)°, respectively. In the crystal, molecules are linkedviaO—H...O hydrogen bonds, forming chains along [100]. The chains are linked by C—H...O hydrogen bonds, forming a three-dimensional structure.

scholarly journals Crystal structure of 2-(3-nitrophenyl)-1,3-dithiane

2015 ◽  
Vol 71 (3) ◽  
pp. o181-o182 ◽  
Author(s):  
Ignez Caracelli ◽  
Julio Zukerman-Schpector ◽  
Hélio A. Stefani ◽  
Olga Gozhina ◽  
Edward R. T. Tiekink
Keyword(s):  
Crystal Structure ◽  
Least Squares ◽  
Nitro Group ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Intermolecular Interactions ◽  
Title Compound ◽  
Chair Conformation ◽  
Equatorial Position ◽  
Compound C

In the title compound, C10H11NO2S2, the 1,3-dithiane ring has a chair conformation with the 1,4-disposed C atoms being above and below the remaining four atoms. The nitrobenzene substituent occupies an equatorial position and forms a dihedral angle of 88.28 (5)° with the least-squares plane through the 1,3-dithiane ring. The nitro group is twisted out of the plane of the benzene ring to which it is connected, forming a dihedral angle of 10.12 (3)°. In the crystal, molecules aggregate into supramolecular zigzag chains (glide symmetry along thecaxis)vianitro–benzene N—O...π [N—O...Cg(benzene) = 3.4279 (18) Å and angle at O = 93.95 (11)°] interactions. The chains pack with no specific intermolecular interactions between them.

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