scholarly journals Crystal structure of 2,5-dimethylanilinium hydrogen maleate

2014 ◽  
Vol 70 (11) ◽  
pp. o1183-o1184 ◽  
Author(s):  
Maha Mathlouthi ◽  
Daron E. Janzen ◽  
Mohamed Rzaigui ◽  
Wajda Smirani Sta
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Ammonium Group ◽  
Hydrogen Bonding Interactions ◽  
Graph Set

The crystal structure of the title salt, C8H12N+·C4H3O4−, consists of a 2,5-dimethylanilinium cation and an hydrogen maleate anion. In the anion, a strong intramolecular O—H...O hydrogen bond is observed, leading to anS(7) graph-set motif. In the crystal, the cations and anions pack in alternating layers parallel to (001). The ammonium group undergoes intermolecular N—H...O hydrogen-bonding interactions with the O atoms of three different hydrogen maleate anions. This results in the formation of ribbons extending parallel to [010] with hydrogen-bonding motifs of the typesR44(12) andR44(18).

scholarly journals Crystal structure of diethyl 2-acetoxy-2-[3-(4-nitrophenyl)-3-oxo-1-phenylpropyl]malonate

2016 ◽  
Vol 72 (2) ◽  
pp. 257-260
Author(s):  
Nóra Veronika May ◽  
Gyula Tamás Gál ◽  
Zsolt Rapi ◽  
Péter Bakó
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Side Chain ◽  
Compound C ◽  
Side Chain Conformation ◽  
Graph Set ◽  
Aromatic Ring Interactions

In the racemic title compound, C24H25NO9, the dihedral angle between the planes of the two benzene-ring systems is 80.16 (6)°, while the side-chain conformation is stabilized by a methylene–carboxyl C—H...O hydrogen bond. Weak intermolecular C—H...O hydrogen bonds form inversion dimers [graph setR22(16)] which are linked into chains extending alonga. Further C—H...O hydrogen bonding extends the structure alongbthrough cyclicR22(10) motifs. Although no π–π aromatic ring interactions are present in the structure, C—H...π ring interactions acrosscgenerate an overall three-dimensional supramolecular structure.

scholarly journals (5E)-1-Benzyl-5-(3,3,3-trichloro-2-oxopropylidene)pyrrolidin-2-one

2014 ◽  
Vol 70 (6) ◽  
pp. o629-o630 ◽  
Author(s):  
Alex Fabiani Claro Flores ◽  
Darlene Correia Flores ◽  
Juliano Rosa de Menezes Vicenti ◽  
Lucas Pizzuti ◽  
Patrick Teixeira Campos
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Phenyl Ring ◽  
Pyrrolidine Ring ◽  
Hydrogen Bond Interactions ◽  
Compound C ◽  
Molecular Arrangement ◽  
Hydrogen Bonding Interactions ◽  
Centrosymmetric Dimers

In the crystal structure of the title compound, C14H12Cl3NO2, no classical hydrogen-bonding interactions are observed. The methylene fragments of the benzyl groups participate in non-classic hydrogen-bond interactions with the carbonyl O atoms of neighboring molecules, generating co-operative centrosymmetric dimers withR55(10) ring motifs. The overall molecular arrangement in the unit cell seems to be highly influenced by secondary non-covalent weak C—Cl...π [Cl...Cg(phenyl ring) = 3.732 (2) Å] and C—O...π [O...Cg(pyrrolidine ring) = 2.985 (2) Å] contacts.

scholarly journals (Z)-2-(2-Oxoindolin-3-ylidene)-N-phenylhydrazinecarbothioamide

2012 ◽  
Vol 68 (4) ◽  
pp. o962-o963 ◽  
Author(s):  
Amna Qasem Ali ◽  
Naser Eltaher Eltayeb ◽  
Siang Guan Teoh ◽  
Abdussalam Salhin ◽  
Hoong-Kun Fun
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Phenyl Ring ◽  
Ring System ◽  
Compound C ◽  
Hydrogen Bonding Interactions ◽  
Graph Set

In the title compound, C15H12N4OS, the dihedral angle between the nine-membered indolin-2-one ring system and the phenyl ring is 2.72 (7)°. Intramolecular cyclic N—H...O and C—H...S hydrogen-bonding interactions [graph setS(6)] are present, as are weak N—H...N interactions [graph setS(5)]. In the crystal, molecules form centrosymmetric cyclic dimers through pairs of N—H...O hydrogen bonds [graph setR22(8)] and these are extended by C—H...S interactions. The crystal structure also features weak C—H...π interactions.

scholarly journals Crystal structure of cyclohexylammonium thiocyanate

2015 ◽  
Vol 71 (1) ◽  
pp. o62-o63 ◽  
Author(s):  
Abdulaziz A. Bagabas ◽  
Sultan B. Alhoshan ◽  
Hazem A. Ghabbour ◽  
C. S. Chidan Kumar ◽  
Hoong-Kun Fun
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Three Dimensional ◽  
Chair Conformation ◽  
Equatorial Position ◽  
Ammonium Group ◽  
Hydrogen Bonding Interactions ◽  
Dimensional Network

In the title salt, C6H11NH3+·SCN−, the cyclohexylammonium ring adopts a slightly distorted chair conformation. The ammonium group occupies an equatorial position to minimize 1,3 and 1,5 diaxial interactions. In the crystal, the components are linked by N—H...N and N—H...S hydrogen-bonding interactions, resulting in a three-dimensional network.

scholarly journals rac-tert-Butyl{2-hydroxy-2-[4-hydroxy-3-(hydroxymethyl)phenyl]ethyl}azanium acrylate

IUCrData ◽  
2017 ◽  
Vol 2 (8) ◽  
Author(s):  
Wenju Liu ◽  
Linda Yu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Tert Butyl ◽  
Hydrogen Bonding Interactions

The title salt, C13H22NO3+·C3H3O2−, comprises one salbutamol cation and an acrylate anion. The acrylate anion is linked to the salbutamol cationviaan O—H...O and an N—H...O hydrogen bond. The C=C group of the acrylate anion is disordered over two positions, with refined site occupancies of 0.812 (7) and 0.188 (7). The crystal structure is stabilized by N—H...O and O—H...O hydrogen-bonding interactions.

scholarly journals Crystal structure of Brinzolamide: a carbonic anhydrase inhibitor

2016 ◽  
Vol 72 (5) ◽  
pp. 692-695
Author(s):  
Huirong Zheng ◽  
Benyong Lou
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Secondary Amine ◽  
Resonant Scattering ◽  
Bilayer Structure ◽  
Compound C ◽  
Hydrogen Bonding Interactions ◽  
Absolute Structure ◽  
Sulfonamide Group

In crystal structure of the title compound, C12H21N3O5S3[systematic name: (R)-4-ethylamino-2-(3-methoxypropyl)-3,4-dihydro-2H-thieno[3,2-e][1,2]thiazine-6-sulfonamide 1,1-dioxide], there exist three kinds of hydrogen-bonding interactions. The sulfonamide group is involved in hydrogen bonding with the secondary amine and the methoxy O atom, resulting in the formation of layers parallel to thebcplane. The layers are linked by an N—H...O hydrogen bond involving a sulfonamide O atom as acceptor and the secondary amine H atom as donor, which gives rise to the formation of a unique bilayer structure. The absolute structure of the molecule in the crystal was determined by resonant scattering [Flack parameter = 0.01 (4)].

scholarly journals Crystal structure of 1-butyl-3-{2-[(indan-5-yl)amino]-2-oxoethyl}-1H-imidazol-3-ium chloride

2018 ◽  
Vol 74 (11) ◽  
pp. 1665-1668
Author(s):  
Vidya Zende ◽  
Tejpalsingh Ramsingh Girase ◽  
Nicolas Chrysochos ◽  
Anant Ramakant Kapdi ◽  
Carola Schulzke
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Carbon Atom ◽  
Aromatic Ring ◽  
Methylene Carbon ◽  
Hydrogen Bonding Interactions ◽  
Methylene Carbon Atom ◽  
Molecular Salt

In the cation of the title molecular salt, C18H24N3O+·Cl−, an intramolecular C—H...O hydrogen bond stabilizes the almost coplanar orientation of the aromatic ring of the indane unit and the amide plane. In the crystal, the packing is dominated by intermolecular C—H...Cl hydrogen-bonding interactions that result in the formation of slab-like structures propagating along [010]. The slabs are linked by weak C—H...O interactions, forming layers lying parallel to (100). The methylene carbon atom of the indanyl substituent is disordered over two positions with a refined occupancy ratio of 0.84 (2):0.16 (2). The crystal studied was refined as a twin with matrix [1 0 0.9, 0 \overline{1} 0, 0 0 \overline{1}]; the resulting BASF value is 0.30.

scholarly journals Crystal structure of (1,3-thiazole-2-carboxylato-κN)(1,3-thiazole-2-carboxylic acid-κN)silver(I)

2019 ◽  
Vol 75 (2) ◽  
pp. 185-188
Author(s):  
Natthaya Meundaeng ◽  
Apinpus Rujiwatra ◽  
Timothy J. Prior
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Carboxylic Acid ◽  
Hydrogen Atom ◽  
Three Dimensional ◽  
Supramolecular Architecture ◽  
Π Interactions ◽  
Hydrogen Bonding Interactions ◽  
Linear Configuration

The linear two-coordinate silver (I) complex [Ag(C4H2NO2S)(C4H3NO2S)] or [Ag(2-Htza)(2-tza)] is reported (2-Htza = 1,3-thiazole-2-carboxylic acid). The AgI ion is coordinated by two heterocyclic N atoms from two ligands in a linear configuration, forming a discrete coordination complex. There is an O—H...O hydrogen bond between 2-tza− and 2tzaH of adjacent complexes. The hydrogen atom is shared between the two oxygen atoms. This interaction produces a hydrogen-bonded tape parallel to the [110] direction, which is augmented through intermolecular C—H...O hydrogen-bonding interactions between the bound thiazole groups. There is a further rather long Ag...O interaction [2.8401 (13) Å, compared with a mean of 2.54 (11) Å for 23 structures in the CSD] that assembles these tapes into columns, between which there are C—H...π interactions, leading to the formation of a three-dimensional supramolecular architecture.

Synthese, Kristallstruktur und Eigenschaften von 1,1,3,3,3-Pentaaminol- 1-thio-1 λ5,3λ5-diphosphaz-2-en (NH2)2P(S)N=P(NH2)3 / Synthesis, Crystal Structure, and Properties of 1,1,3,3,3-Pentaam 1-thio-1 λ5,3λ5-diphosphaz-2-en (NH2)2P(S)N=P(NH2)3

1997 ◽  
Vol 52 (4) ◽  
pp. 490-495 ◽  
Author(s):  
Stefan Horstmann ◽  
Wolfgang Schnick
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Hydrogen Atom ◽  
Room Temperature ◽  
Acetonitrile Solution ◽  
Structure And Properties ◽  
X Ray ◽  
Hydrogen Bonding Interactions ◽  
Ray Methods

Abstract (NH2)2P(S)N=P(NH2)3 has been prepared by a two step synthesis. Suitable single crystals were obtained from an acetonitrile solution in a temperature gradient between 60 °C and room temperature. The crystal structure of (NH2)2P(S)N=P(NH2)3 has been determined by single crystal X-ray methods (P21/c, a = 998.27(9) b = 762.78(8), c = 1007.70(15) pm, β = 107.340(7)°, Z = 4). In the crystal structure each hydrogen atom is subject to a hydrogen bond. Four N-H -N hydrogen bonding interactions per molecule build up a framework connecting two molecules in eight-membered rings. Each sulfur atom shows six distances N-H···S in the range of weak hydrogen bonding interactions.

scholarly journals Crystal structure of 5-benzoyl-2,4-diphenyl-4,5-dihydrofuran-3-carbonitrile

2015 ◽  
Vol 71 (9) ◽  
pp. o663-o664
Author(s):  
V. Rajni Swamy ◽  
R.V. Krishnakumar ◽  
S. Sivakumar ◽  
N. Srinivasan ◽  
R. Ranjith Kumar
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Crystal Lattice ◽  
Torsion Angle ◽  
Title Compound ◽  
Intermolecular Hydrogen Bonding ◽  
Compound C ◽  
Benzoyl Group ◽  
Graph Set

In the title compound, C24H17NO2, the carbonyl O atom of the benzoyl group isciswith respect to the furanyl O atom, and the associated O—C—C—O torsion angle is 4.62 (19)°. The puckering of the dihydrofuran ring is close to twisted (4T5), with parametersQ= 0.1856 (16) Å and φ = 313.5 (5)°. Molecules are interconnectedviaa C—H...N and a C—H...O hydrogen bond, leading to layers parallel to the (200) plane and characterized byR44(28) andR44(36) graph-set motifs. The furan O atom does not participate in intermolecular hydrogen bonding. The crystal lattice encompasses a solvent-accessible void of 24.7 (8) Å3.

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