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 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 1-Benzyl-1H-benzotriazole

2012 ◽  
Vol 68 (4) ◽  
pp. o1132-o1132 ◽  
Author(s):  
P. Selvarathy Grace ◽  
Samuel Robinson Jebas ◽  
B. Ravindran Durai Nayagam ◽  
Dieter Schollmeyer
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Ring System ◽  
Maximum Deviation ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Centroid Distance

In the title compound, C13H11N3, the benzotriazole ring system is essentially planar, with a maximum deviation of 0.0173 (18) Å, and forms a dihedral angle of 75.08 (8)Å with the phenyl ring. In the crystal, pairs of weak C—H...N hydrogen bonds form inversion dimers. In addition, there are weak C—H...π(arene) interactions and weak π–π stacking interactions, with a centroid–centroid distance of 3.673 (11) Å.

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.

5-Nitrosalicylaldehyde (2-hydroxybenzoyl)hydrazone

2006 ◽  
Vol 62 (7) ◽  
pp. o3026-o3027 ◽  
Author(s):  
Hong-Mei Xu ◽  
Shi-Xiong Liu
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Crystal Packing ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
Aromatic Rings ◽  
Compound C ◽  
Π Stacking

The molecule of the title compound, C14H11N3O5, is approximately planar, the dihedral angles between the two aromatic rings being 4.63 (7)°. O—H...N, N—H...O and O—H...O hydrogen bonds and π–π stacking interactions help to consolidate the crystal packing.

scholarly journals 5-[(2-Hydroxyethyl)(methyl)amino]thiophene-2-carbaldehyde

2014 ◽  
Vol 70 (6) ◽  
pp. o724-o724
Author(s):  
Xian-Shun Sun ◽  
Nan-Qi Shao ◽  
Dan-Dan Li
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Thiophene Ring ◽  
Aldehyde Group ◽  
Maximum Deviation ◽  
Axis Direction ◽  
Compound C ◽  
Supramolecular Chains

In the title compound, C8H11NO2S, the aldehyde group is approximately coplanar with the thiophene ring [maximum deviation = 0.023 (2) Å]. In the crystal, molecules are linked by O—H...O hydrogen bonds into supramolecular chains propagating along thea-axis direction.

scholarly journals 6-Fluoro-4-oxo-4H-chromene-3-carbaldehyde

2014 ◽  
Vol 70 (5) ◽  
pp. o583-o583 ◽  
Author(s):  
Yoshinobu Ishikawa
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Stacking Interactions ◽  
Axis Direction ◽  
Compound C ◽  
Π Stacking ◽  
Centroid Distance ◽  
The Mean

In the title compound, C10H5FO3, the non-H atoms are essentially coplanar (r.m.s. deviation = 0.0071 Å), with the largest deviation from the mean plane [0.0203 (15) Å] being found for the ring C atom in the 2-position. In the crystal, molecules are linked into a three-dimensional architectureviaC—H...O hydrogen bonds and π–π stacking interactions between the chromone units along thea-axis direction [centroid–centroid distance between the benzene and pyran rings = 3.707 (2) Å].

scholarly journals 6-Iodo-4-oxo-4H-chromene-3-carbaldehyde

2014 ◽  
Vol 70 (7) ◽  
pp. o744-o744
Author(s):  
Yoshinobu Ishikawa
Keyword(s):  
Least Squares ◽  
Title Compound ◽  
Stacking Interactions ◽  
Halogen Bonds ◽  
Compound C ◽  
Π Stacking ◽  
Centroid Distance ◽  
Benzene Rings ◽  
Supramolecular Chains

In the title compound, C10H5IO3, an iodinated 3-formylchromone derivative, the non-H atoms are essentially coplanar (r.m.s. deviation = 0.0259 Å), with the largest deviation from the least-squares plane [0.056 (5) Å] being found for the formyl O atom. In the crystal, molecules are linked through I...O halogen bonds [I...O = 3.245 (4) Å, C—I...O = 165.95 (13) and C=O...I = 169.7 (4)°] along [101]. The supramolecular chains are assembled into layersviaπ–π stacking interactions along thebaxis [shortest centroid–centroid distance between the pyran and benzene rings = 3.558 (3) Å].

scholarly journals 4-{[Bis(2-hydroxyethyl)amino]methyl}-6-methoxy-2H-chromen-2-one

2012 ◽  
Vol 68 (8) ◽  
pp. o2413-o2414
Author(s):  
Reshma Naik ◽  
Ravish Sankolli ◽  
G. N. Anil Kumar ◽  
T. N. Guru Row ◽  
Manohar V. Kulkarni
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Membered Ring ◽  
Side Chains ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Centroid Distance

In the title compound, C15H19NO5, an intramolecular O—H...O hydrogen bond links the hydroxyethyl side chains, forming a seven-membered ring. In the crystal, molecules are linked into chainsviaO—H...O hydrogen bonds along thebaxis. Further, molecules are linked by weak intermolecular C—H...O and π–π stacking interactions [centroid–centroid distance = 3.707 (4) Å].

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 3-(4-Chlorophenyl)-5-[4-(methylsulfanyl)phenyl]-1H-pyrazole

IUCrData ◽  
2016 ◽  
Vol 1 (4) ◽  
Author(s):  
Ganesan Suresh ◽  
Sarangapani Muniraj
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Three Dimensional ◽  
Pyrazole Ring ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
Compound C ◽  
Π Stacking ◽  
Dimensional Network

In the title compound, C16H13ClN2S, the pyrazole ring is almost planar with an r.m.s. deviation of 0.0457 Å which forms dihedral angles of 2.875 (4) and 84.83 (7)° with the chloro-substituted benzene ring and the methylsulfanyl-substituted ring, respectively. In the crystal, N—H...N and C—H...Cl hydrogen bonds contribute to the formation of a three-dimensional network. In addition, several offset π–π stacking interactions are also present.

Sign in / Sign up

Export Citation Format

Share Document