scholarly journals Crystal structure of 1,1′-[selanediylbis(4,1-phenylene)]bis(2-chloroethan-1-one)

2015 ◽  
Vol 71 (12) ◽  
pp. o935-o936 ◽  
Author(s):  
Hazem Bouraoui ◽  
Ali Boudjada ◽  
Noudjoud Hamdouni ◽  
Youcef Mechehoud ◽  
Jean Meinnel

In the title molecule, C16H12Cl2O2Se, the C—Se—C angle is 100.05 (14)°, with the dihedral angle between the planes of the benzene rings being 69.92 (17)°. The average endocyclic angles (Se—Car—Car; ar = aromatic) facing the Se atom are 120.0 (3) and 119.4 (3)°. The Se atom is essentially coplanar with the benzene rings, with Se—Car—Car—Cartorsion angles of −179.2 (3) and −179.7 (3)°. In the crystal, molecules are linkedviaC—H...O hydrogen bonds forming chains propagating along thea-axis direction. The chains are linkedviaC—H...π interactions, forming a three-dimensional network.

2015 ◽  
Vol 71 (7) ◽  
pp. o494-o494 ◽  
Author(s):  
Gihaeng Kang ◽  
Jineun Kim ◽  
Hyunjin Park ◽  
Tae Ho Kim

In the title compound {systematic name: 5-tert-butyl-3-[2,4-dichloro-5-(prop-2-ynyloxy)phenyl]-1,3,4-oxadiazol-2(3H)-one}, C15H14Cl2N2O3, which is an oxadiazolone herbicide, the dihedral angle between the planes of the oxadiazolone and benzene rings is 65.84 (6)°. In the crystal, weak intermolecular Cl...Cl [3.3600 (7) Å] short contacts link adjacent molecules, forming chains along theb-axis direction. These chains are linked by C—H...O, C—H...N and C—H...Cl hydrogen bonds, generating a three-dimensional network. Weak C—H...π interactions are also present.


2014 ◽  
Vol 70 (10) ◽  
pp. 262-264 ◽  
Author(s):  
S. Jothivel ◽  
Jibon Kotoky ◽  
S. Kabilan

In the title molecule, C21H20ClF2NO2, the piperidine ring adopts a slightly distorted boat conformation. The two benzene rings form a dihedral angle of 87.43 (1)°. A weak intramolecular C—H...π interaction is observed. In the crystal, weak C—H...O hydrogen bonds and weak C—H...π interactions connect the molecules, forming a three-dimensional network.


2014 ◽  
Vol 70 (12) ◽  
pp. o1287-o1287
Author(s):  
Ju-Xian Wang ◽  
Chao Feng

In the title molecule, C13H14N2O2, the dihedral angle between the pyrazole and benzene ring mean planes is 76.06 (11)°, and the conformation of the ethyl side chain isanti[C—O—C—C = −175.4 (3)°]. In the crystal, the only directional interactions are very weak C—H ...π interactions involving both the pyrazole and benzene rings, leading to the formation of a three-dimensional network.


2019 ◽  
Vol 75 (8) ◽  
pp. 1280-1283
Author(s):  
Suchada Chantrapromma ◽  
Huey Chong Kwong ◽  
Patcharawadee Prachumrat ◽  
Thawanrat Kobkeatthawin ◽  
Tze Shyang Chia ◽  
...  

In the title benzohydrazide derivative, C14H12N2O4, the azomethine C=N double bond has an E configuration. The hydrazide connecting bridge, (C=O)—(NH)—N=(CH), is nearly planar with C—C—N—N and C—N—N=C torsion angles of −177.33 (10) and −174.98 (12)°, respectively. The 4-hydroxyphenyl and 3,4-dihydroxyphenyl rings are slightly twisted, making a dihedral angle of 9.18 (6)°. In the crystal, molecules are connected by N—H...O and O—H...O hydrogen bonds into a three-dimensional network, while further consolidated via π–π interactions [centroid–centroid distances = 3.6480 (8) and 3.7607 (8) Å]. The conformation is compared to those of related benzylidene-4-hydroxybenzohydrazide derivatives.


2016 ◽  
Vol 72 (8) ◽  
pp. 1219-1222
Author(s):  
Md. Serajul Haque Faizi ◽  
Musheer Ahmad ◽  
Akram Ali ◽  
Vadim A. Potaskalov

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.


2014 ◽  
Vol 70 (12) ◽  
pp. o1248-o1249 ◽  
Author(s):  
Patrick C. Hillesheim ◽  
Kent A. Scipione

In the title salt, C11H13N2+·PF6−, the dihedral angle between the planes of the imidazole and benzene rings is 84.72 (4)°. In the crystal, C—H...F interactions connect the cation and anion pairs into a three-dimensional network. Weak π–π interactions are observed between the imidazolium ring and the aromatic benzene ring of an adjacent molecule with C...C and C...N distances ranging from 3.3714 (16) to 3.4389 (15) Å.


2012 ◽  
Vol 68 (6) ◽  
pp. o1908-o1908 ◽  
Author(s):  
Abdelaaziz Ouahrouch ◽  
Moha Taourirte ◽  
Hassan B. Lazrek ◽  
Jan W. Bats ◽  
Joachim W. Engels

In the title molecule, C18H17N5O2, the dihedral angle between the benzene plane and the benzimidazole plane is 19.8 (1)° and the angle between the benzene plane and the triazole plane is 16.7 (1)°. In the crystal, molecules are connected by O—H...N hydrogen bonds, forming zigzag chains along the c-axis direction. The chains are connected by bifurcated N—H...(N,N) hydrogen bonds into layers parallel to (100). These layers are connected along the a-axis direction by weak C—H...O contacts, forming a three-dimensional network.


2013 ◽  
Vol 69 (12) ◽  
pp. o1851-o1852
Author(s):  
Suchada Chantrapromma ◽  
Nawong Boonnak ◽  
Boonwasana Jindawong ◽  
Hoong-Kun Fun

The title salt crystallized as the monohydrate C15H16NO2+·C6H4BrSO3−·H2O. The cation exists in anEconformation with respect to the ethynyl bond and is essentially planar, with a dihedral angle of 6.52 (14)° between the pyridinium and the benzene rings. The hydroxy and methoxy substituents are coplanar with the benzene ring to which they are attached, with an r.m.s. deviation of 0.0116 (3) Å for the nine non-H atoms [Cmethyl—O—C—C torsion angle = −0.8 (4)°]. In the crystal, the cations and anions are stacked by π–π interactions, with centroid–centroid distances of 3.7818 (19) and 3.9004 (17) Å. The cations, anions and water molecules are linked by O—H...O hydrogen bonds and weak C—H...O interactions, forming a three-dimensional network.


IUCrData ◽  
2016 ◽  
Vol 1 (8) ◽  
Author(s):  
K. R. Roopashree ◽  
Bharathkumar Inturi ◽  
Gurubasavaraj V. Pujar ◽  
S. R. Prem Kumar ◽  
H. C. Devarajegowda

In the title hydrate, C14H13N3O3·H2O, the dihedral angle between the pyridine and benzene rings is 2.52 (9)°. Intramolecular O—H...O hydrogen bonds occur. In the crystal, O—H...O, O—H...N, N—H...O and C—H...O hydrogen bonds link the components into a three-dimensional network. π–π interactions are also observed.


Author(s):  
Brock A. Stenfors ◽  
Richard J. Staples ◽  
Shannon M. Biros ◽  
Felix N. Ngassa

The title compound, C15H17NO2S, was synthesized via a substitution reaction between 4-methylbenzylamine and p-toluenesulfonyl chloride. In the crystal, N—H...O hydrogen bonds link the molecules, forming ribbons running along the b-axis direction. One of the aromatic rings hosts two intermolecular C—H...π interactions that link these hydrogen-bonded ribbons into a three-dimensional network.


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