scholarly journals Crystal structure of 2-oxopyrrolidin-3-yl 4-(2-phenyldiazen-1-yl)benzoate

2018 ◽  
Vol 74 (4) ◽  
pp. 458-460 ◽  
Author(s):  
Igor Elkin ◽  
Thierry Maris ◽  
Alexandre Melkoumov ◽  
Patrice Hildgen ◽  
Xavier Banquy ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Stacking Interactions ◽  
Π Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Supramolecular Chains

In the title compound, C17H15N3O3, the plane of the pyrrolidone ring is inclined at an angle of 59.791 (2)° to that of the azobenzene segment, which adopts a configuration close to planar. In the crystal, molecules are oriented pairwise by (2-oxopyrrolidin-3-yl)oxy moieties at an angle of 76.257 (3)°, linked by hydrogen bonds and π-stacking interactions, forming zigzag supramolecular chains parallel to [010] further linked via additional C—H...π interactions.

scholarly journals Crystal structure of 2-bromo-1,4-dihydroxy-9,10-anthraquinone

2014 ◽  
Vol 70 (10) ◽  
pp. o1130-o1130 ◽  
Author(s):  
Wataru Furukawa ◽  
Munenori Takehara ◽  
Yoshinori Inoue ◽  
Chitoshi Kitamura
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Dimensional Network

In an attempt to brominate 1,4-dipropoxy-9,10-anthraquinone, a mixture of products, including the title compound, C14H7BrO4, was obtained. The molecule is essentially planar (r.m.s. deviation = 0.029 Å) and two intramolecular O—H...O hydrogen bonds occur. In the crystal, the molecules are linked by weak C—H...O hydrogen bonds, Br...O contacts [3.240 (5) Å], and π–π stacking interactions [shortest centroid–centroid separation = 3.562 (4) Å], generating a three-dimensional network.

scholarly journals Crystal structure of dimethyl 3,3′-[(4-fluorophenyl)methylene]bis(1H-indole-2-carboxylate)

2015 ◽  
Vol 71 (10) ◽  
pp. 1140-1142 ◽  
Author(s):  
Hong-Shun Sun ◽  
Yu-long Li ◽  
Hong Jiang ◽  
Ning Xu ◽  
Hong Xu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Indole Ring ◽  
Ring Systems ◽  
Π Interactions ◽  
Compound C ◽  
The Mean ◽  
Supramolecular Chains

In the title compound, C27H21FN2O4, the mean planes of the indole ring systems (r.m.s. deviations = 0.0263 and 0.0160 Å) are approximately perpendicular to one another, making a dihedral angle of 84.0 (5)°; the fluorobenzene ring is twisted with respect to the mean planes of the two indole ring systems at 89.5 (5) and 84.6 (3)°. In the crystal, pairs of N—H...O hydrogen bonds link the molecules into inversion dimers, which are further linked by N—H...O hydrogen bonds into supramolecular chains propagated along theb-axis direction. Weak C—H...π interactions are observed between neighbouring chains.

scholarly journals N-Methyl-N-nitroso-p-toluenesulfonamide

2014 ◽  
Vol 70 (7) ◽  
pp. o782-o782
Author(s):  
Kartik Rai ◽  
Vincent Wu ◽  
Priya Gupta ◽  
David A. Laviska ◽  
Benny C. Chan
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Methyl Groups ◽  
Stacking Interactions ◽  
Aromatic Rings ◽  
Compound C ◽  
Π Stacking ◽  
Centroid Distance

The crystal structure of the title compound, C8H10N2O3S, displays predominant C—H...O hydrogen-bonding and π–π stacking interactions. The hydrogen bonds are between the O atoms of the sulfonyl group and H atoms on methyl groups. The π–π stacking interactions occur between adjacent aromatic rings, with a centroid–centroid distance of 3.868 (11) Å. These interactions lead to the formation of chains parallel to (101).

scholarly journals Crystal structure ofN-(7-dibromomethyl-5-methyl-1,8-naphthyridin-2-yl)benzamide–pyrrolidine-2,5-dione (1/1)

2017 ◽  
Vol 73 (1) ◽  
pp. 1-3
Author(s):  
Bang Zhong Wang ◽  
Jun Ping Zhou ◽  
Yong Zhou ◽  
Jian Song Luo ◽  
Jun Jie Yang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Least Squares ◽  
Title Compound ◽  
Mirror Symmetry ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking

The title compound, C17H13Br2N3O·C4H5NO2, is a co-crystal ofN-(7-dibromomethyl-5-methyl-1,8-naphthyridin-2-yl)benzamide and pyrrolidine-2,5-dione (succinimide). The benzamide molecule exhibits pseudo-mirror symmetry, with an r.m.s. deviation of the non-H atoms of 0.09 Å (except for the two Br atoms). The angle between the least-squares planes of the two molecules is 26.2 (2)°. In the crystal, the two molecules are mutually linked by N—H...O and N—H...N hydrogen bonds. The packing is consolidated by C—H...(O,N) hydrogen bonds and π–π stacking interactions.

scholarly journals 1,10-Phenanthroline-5,6-dione ethanol monosolvate

2014 ◽  
Vol 70 (5) ◽  
pp. o573-o573 ◽  
Author(s):  
Jing-Wei Dai ◽  
Zhao-Yang Li ◽  
Osamu Sato
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Maximum Deviation ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Supramolecular Chains

In the title compound, C12H6N2O2·C2H5OH, the molecule of the 1,10-phenanthroline-5,6-dione is approximately planar, with a maximum deviation of 0.051 (1) Å. In the crystal, molecules are linked by O—H...N and weak C—H...O hydrogen bonds, forming supramolecular chains propagating along [110]. π–π stacking interactions are observed between the pyridine rings of neighbouring chains, the centroid–centroid separations being 3.6226 (11) and 3.7543 (11) Å.

scholarly journals Crystal structure of 1-(5-bromo-1-benzofuran-2-yl)ethanone oxime

2015 ◽  
Vol 71 (10) ◽  
pp. o773-o774
Author(s):  
G. Krishnaswamy ◽  
P. Krishna Murthy ◽  
R. Nivedita Desai ◽  
P. A. Suchetan ◽  
D. B. Aruna Kumar
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Stacking Interactions ◽  
Oxime Group ◽  
Compound C ◽  
Π Stacking

The title compound, C10H8BrNO2, is almost planar (r.m.s. deviation for the non-H atoms = 0.031 Å) and the conformation across the C=N bond istrans. Further, the O atom of the benzofuran ring issynto the N atom of the oxime group. In the crystal, inversion dimers linked by pairs of O—H...N hydrogen bonds generateR22(6) loops. Very weak aromatic π–π stacking interactions [centroid–centroid separations = 3.9100 (12) and 3.9447 (12) Å] are also observed.

scholarly journals Crystal structure of mandipropamid

2015 ◽  
Vol 71 (10) ◽  
pp. o727-o728
Author(s):  
Hyunjin Park ◽  
Jineun Kim ◽  
Gihaeng Kang ◽  
Tae Ho Kim
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Intermolecular Interactions ◽  
Title Compound ◽  
Π Interactions ◽  
Compound C ◽  
Benzene Rings ◽  
Supramolecular Chains

In the title compound, C23H22ClNO4(systematic name: (RS)-2-(4-chlorophenyl)-N-{2-[3-methoxy-4-(prop-2-yn-1-yloxy)phenyl]ethyl}-2-(prop-2-ynyloxy)acetamide), an amide fungicide, the dihedral angle between the chlorobenzene and benzene rings is 65.36 (6)°. In the crystal, N—H...O hydrogen bonds lead to zigzag supramolecular chains along thecaxis (glide symmetry). These are connected into layers by C—H...O and C—H...π interactions; the layers stack along theaaxis with no specific intermolecular interactions between them.

scholarly journals 1-Chloro-2-(4-phenylpiperazin-1-yl)ethanone

2009 ◽  
Vol 65 (6) ◽  
pp. o1211-o1211
Author(s):  
Yong-Ji Xu ◽  
Fei Jing
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Starting Material ◽  
Stacking Interactions ◽  
Π Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Piperazine Derivative ◽  
Centroid Distance

The title compound, C12H15ClN2O, is a piperazine derivative with the potential for use as a starting material for pharmaceutial and agrochemical applications. The structure is stabilized by C—H...O hydrogen bonds, C—H...π interactions and π–π stacking interactions [centroid–centroid distance = is 4.760 (2) Å].

5-[(4-Methylphenyl)methyl]benzene-1,2,4-tricarbonitrile

2007 ◽  
Vol 63 (3) ◽  
pp. o1230-o1231 ◽  
Author(s):  
Zhi-Feng Lu ◽  
Jian-Hua Xu ◽  
Jeannie Bee-Jan Teh ◽  
Hoong-Kun Fun
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Methyl Benzene

In the title compound, C17H11N3, the dihedral angle between the tolyl and tricyanophenyl rings is 81.1 (1)°. The crystal structure is stabilized by weak C—H...N hydrogen bonds and π–π stacking interactions.

scholarly journals Crystal structure of 1,3-bis{[4-(acetylsulfanyl)phenyl]ethynyl}azulene

2015 ◽  
Vol 71 (12) ◽  
pp. o1099-o1100
Author(s):  
Sebastian Förster ◽  
Wilhelm Seichter ◽  
Edwin Weber
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Ring System ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Benzene Rings

In the title compound, C30H20O2S2, the dihedral angles between the central azulene ring system (r.m.s. deviation = 0.039 Å) and the pendant benzene rings are 28.96 (7) and 55.15 (7)°. The dihedral angles between the benzene rings and their attached acetylsulfanyl groups are 59.60 (10) and 84.79 (10)°. The expected π–π stacking interactions are not observed in the crystal structure; instead, the packing features C—H...O hydrogen bonds, which link the molecules intoC(12) [010] chains, which are supported by weak C—H...π contacts.

Sign in / Sign up

Export Citation Format

Share Document