Results 1 to 10 of about 4,190 (143)

Crystal structure and Hirshfeld surface analysis of ketorolac tromethamine. [PDF]

Acta Crystallogr E Crystallogr Commun
Ketorolac tromethamine or 1,3-dihydroxy-2-(hydroxymethyl)propan-2-aminium 5-benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylate, C15H12NO3 +·C4H12NO3 −, was studied by single-crystal and powder X-ray diffraction methods. One cation and one anion are present in the asymmetric unit.
Shaposhnyk AM, Rudiuk VV, Baumer VN.
europepmc   +4 more sources

Crystal structure and Hirshfeld-surface analysis of the pesticide etoxazole. [PDF]

Acta Crystallogr E Crystallogr Commun
Etoxazole (C21H23F2NO2), systematic name 4-(4-tert-butyl-2-ethoxyphenyl)-2-(2,6-difluorophenyl)-4,5-dihydro-1,3-oxazole, is a fluorinated insecticide and acaricide that inhibits chitin biosynthesis, disrupting insect development by preventing proper exoskeleton formation.
Sowbhagya C, Mohan Kumar TM, Yathirajan HS, Parkin S.   +3 more
europepmc   +4 more sources

Crystal Structure and Hirshfeld Surface Analysis of Acetoacetanilide Based Reaction Products [PDF]

Molecules, 2020
We report an unprecedented multicomponent reaction of acetoacetanilide with malononitrile leading to a structurally novel bicyclic product (9) in a high yield. The structure has been confirmed by X-ray crystallography and comparative Hirshfeld surface analysis of 5-cyano-2-hydroxy-2-methyl-N-phenyl-4-(yridine-4-yl)-6-(thiophen-2-yl)-3,4-dihydro-2H ...
Farid N Naghiyev, Jonathan Cisterna, Ali N Khalilov   +2 more
exaly   +4 more sources

Crystal structure and Hirshfeld surface analysis of the fungicide metconazole. [PDF]

Acta Crystallogr E Crystallogr Commun
Metconazole is a systemic triazole fungicide that inhibits the ergosterol biosynthesis pathway. It is widely used in agriculture to control fungal infections, including rusts, fusarium and septoria diseases. The molecular structure is a three-ring system, namely, 5-(4-chlorobenzyl)-2,2-dimethyl-1-(1H-1,2,4-triazol-1-ylmethyl)cyclopentan-1-ol ...
Mohan Kumar TM, Sowbhagya C, Yathirajan HS, Parkin S.   +3 more
europepmc   +4 more sources

Crystal structure and Hirshfeld surface analysis of an etoxazole metabolite designated R4. [PDF]

Acta Crystallogr E Crystallogr Commun
A metabolite of the insecticide/acaricide etoxazole, designated R4 {systematic name N-[1-(4-tert-butyl-2-ethoxyphenyl)-2-hydroxyethyl]-2,6-difluorobenzamide, C21H25F2NO3}, is presented. The molecular structure has a central N-(2-hydroxyethyl)formamide group flanked by 4-tert-butyl-2-ethoxyphenyl and 2,6-difluorophenyl-substituted rings.
Sowbhagya C, Mohan Kumar TM, Bhavya P, Yathirajan HS, Parkin S.   +4 more
europepmc   +3 more sources

Polymorphism and Hirshfeld surface analysis of tetra-oxa[2]perfluoro-arene[2]triazine. [PDF]

Acta Crystallogr E Crystallogr Commun
The title compound, tetraoxa[2]perfluoroarene[2]triazine (C20H6F8N6O6), composed of two tetrafluorophenylene and two triazine moieties connected by four oxygen atoms, was crystallized via slow evaporation of a dichloromethane solution, yielding two polymorphs: block- (I) and plate-shaped (II) crystals. Polymorph I (triclinic, P 1, V =
Kawasaki T, Hori A.
europepmc   +4 more sources

Synthesis, crystal structure and Hirshfeld surface analysis of sulfamethoxazolium methyl-sulfate monohydrate. [PDF]

Acta Crystallogr E Crystallogr Commun
The molecular salt sulfamethoxazolium {or 4-[(5-methyl-1,2-oxazol-3-yl)sulfamoyl]anilinium methyl sulfate monohydrate}, C10H12N3O3S+·CH3O4S−·H2O, was prepared by the reaction of sulfamethoxazole and H2SO4 in methanol and crystallized from methanol–ether–water. Protonation takes place at the nitrogen atom of the primary amino group. In the crystal, N—H..
Moroni AB, Bottoso T, Lionello DF, Vega DR, Kaufman TS, Calvo NL.   +5 more
europepmc   +5 more sources

Crystal structure and Hirshfeld surface analysis of a pyrrolo-thiazine complex [PDF]

Acta Crystallographica Section E Crystallographic Communications, 2021
In the title compound, diethyl 2,2-dioxo-4-(thiophen-2-yl)-1-[(thiophen-2-yl)methyl]-3,4,6,7,8,8a-hexahydro-1H-pyrrolo[2,1-c][1,4]thiazine-1,3-dicarboxylate, C22H28NO6S3, the pyrrolo ring is in an envelope conformation while the thiazine ring adopts a near chair conformation.
R. Sribala, N. Srinivasan, P. Rajalaksmi, S. Indumathi, R.V. Krishnakumar   +4 more
openaire   +3 more sources

Crystal structure and Hirshfeld surface analysis of 1,3-diethynyladamantane [PDF]

Acta Crystallographica Section E Crystallographic Communications, 2020
The title compound, C14H16, exhibits exceptionally weak intermolecular C—H...π hydrogen bonding of the ethynyl groups, with the corresponding H...π separations [2.91 (2) and 3.12 (2) Å] exceeding normal vdW distances. This bonding complements distal contacts of the CH (aliphatic)...π type [H...π = 3.12 (2)–3.14 (2) Å] to sustain supramolecular layers ...
Kostiantyn V. Domasevitch, Anna S. Degtyarenko   +1 more
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Crystal structure and Hirshfeld surface analysis of 4-bromoanilinium nitrate [PDF]

Acta Crystallographica Section E Crystallographic Communications, 2020
The title compound C4H7BrN+·NO3 − crystallizes in the monoclinic crystal system with space group P21/c. In the crystal, π-π stacking interactions and strong N—H...O and C—H...O hydrogen bonds link the cations and anions into layers parallel to the bc plane. The O...H/H...O interactions between the cation and anion are the major factor
Radhakrishnan Anbarasan, Palaniyasan Eniya, Jeyaperumal Kalyana Sundar, Menberu Mengesha Woldemariam   +3 more
openaire   +3 more sources