0000000000210281

AUTHOR

Mohamed Saadi

0000-0003-2655-0230

showing 10 related works from this author

Crystal structure of 4-(4-meth-oxy-phen-yl)-4',4'-dimethyl-3-p-tolyl-3',4'-di-hydro-1'H,3H-spiro-[isoxazole-5,2'-naphthalen]-1'-one.

2015

In the title compound, C28H27NO3, the cyclohexanone and isoxazole rings have envelope conformations, with the methylene and spiro C atoms as the flaps, respectively. The mean plane of the isoxazole ring is inclined slightly to thep-tolyl ring, making a dihedral angle of 14.20 (9)°, and is nearly perpendicular to the mean plane through the tetralone moiety and to the methoxyphenyl ring [dihedral angles = 83.41 (8) and 72.12 (9)°, respectively]. The crystal packing is stabilized mainly by van der Waals forces.

crystal structureisoxazoleGeneral ChemistryCrystal structureDihedral angleCondensed Matter PhysicsRing (chemistry)Data Reportstetra­loneCrystallcsh:ChemistryCrystallographychemistry.chemical_compoundsymbols.namesaketetralonechemistrylcsh:QD1-999TetralonesymbolsMoietyGeneral Materials ScienceIsoxazolevan der Waals forceActa crystallographica. Section E, Crystallographic communications
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Crystal structure, spectroscopic characterization and Hirshfeld surface analysis of trans-di­aqua­[2,5-bis­(pyridin-4-yl)-1,3,4-oxa­diazole]di­thio­c…

2019

The NiII atom in the mononuclear title complex has an almost regular octa­hedral N4O2 coordination geometry. In the crystal, the complex mol­ecules are linked in a three-dimensional network through strong O—H⋯N hydrogen bonds.

crystal structurespectroscopyThio-chemistry.chemical_elementcoordination complexCrystal structure010403 inorganic & nuclear chemistry01 natural sciencesCoordination complexResearch CommunicationsCrystalchemistry.chemical_compound134-oxadiazoleGeneral Materials Sciencethio­cyanatechemistry.chemical_classificationthiocyanateCrystallographyThiocyanate010405 organic chemistryHydrogen bondGeneral ChemistryHirshfeld analysisCondensed Matter Physics0104 chemical sciencesCrystallographyNickel134-oxa­diazolechemistryQD901-999hydrogen bondsDiazoleActa Crystallographica Section E: Crystallographic Communications
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1-[(1R,2S,4R,7S)-3,3-Dichloro-4,11,11-trimethyltricyclo[5.4.0.02,4]undecan-7-yl]ethanone

2017

The title compound, C16H24Cl2O, crystallizes with two independent molecules in the asymmetric unit. Each molecule is built up from two fused six-membered rings, one of which is fused to a three-membered ring. The two molecules differ essentially in the orientation of two of the methyl groups. The dihedral angles between the mean planes through the two six-membered rings are 57.98 (13) and 55.29 (13)°. The molecular conformation is stabilized by intramolecular C—H...Cl hydrogen bonds.

crystal structureStereochemistryChemistryHydrogen bondCrystal structureDihedral angle010402 general chemistry010403 inorganic & nuclear chemistryRing (chemistry)01 natural sciencesMedicinal chemistry0104 chemical sciencesBeta-himachalenelcsh:QD901-999lcsh:CrystallographyAtlas cedarCedrus atlanticaβ-himachaleneIUCrData
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Crystal structure ofN′-diphenylmethylidene-5-methyl-1H-pyrazole-3-carbohydrazide

2015

In the title compound, C18H16N4O, the planes of the phenyl rings are approximately perpendicular to each other [dihedral angle = 78.07 (8)°] and form dihedral angles of 56.43 (8) and 24.59 (8)° with the pyrazole ring. In the crystal, molecules are linked by N—H...O hydrogen bonds to form one-dimensional chains parallel to the [010] direction.

crystal structureagrochemical applicationsHydrogen bondbiological activityGeneral ChemistryCrystal structureDihedral anglePyrazoleCondensed Matter PhysicsHydrazideRing (chemistry)Data Reportslcsh:ChemistryCrystalchemistry.chemical_compoundCrystallographylcsh:QD1-999chemistryPerpendicularGeneral Materials Sciencepyrazole derivativespharmaceutical applicationsActa Crystallographica Section E Crystallographic Communications
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Crystal structure of bis[2,5-bis(pyridin-2-yl)-1,3,4-thiadiazole-κ2N2,N3]bis(thiocyanato-κS)copper(II)

2016

The structure of the title compound is similar to that of the related complexes [Co(C12H8N4S)2(N3)2] and [Ni(C12H8N4S)2(N3)2] in which the azide ion is substituted by the thio­cyanate group. The CuN4S2 octa­hedron is more distorted than the CoN6 and NiN6 octa­hedra.

crystal structureStereochemistrychemistry.chemical_elementThio-Crystal structure010402 general chemistry010403 inorganic & nuclear chemistry01 natural sciencesChlorideResearch CommunicationsMetalchemistry.chemical_compoundmedicine25-bis(pyridin-2-yl)-134-thiadiazoleGeneral Materials Sciencecopper complexCoordination geometrythio­cyanate ligandCrystallographyHydrogen bondGeneral Chemistrythiocyanate ligandCondensed Matter PhysicsCopper0104 chemical sciencesCrystallographychemistryQD901-999visual_artvisual_art.visual_art_mediumDiazole25-bis­(pyridin-2-yl)-134-thia­diazolemedicine.drugActa Crystallographica Section E Crystallographic Communications
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Crystal structure of (E)-4-[N-(7-methyl-2-phenyl-imidazo[1,2-a]pyridin-3-yl)carboximido-yl]phenol.

2015

The molecule of the title compound, C21H17N3O, is built up from fused five- and six-membered rings connected to a methyl group, a phenyl ring and an (iminomethyl)phenol group. The fused ring system is almost planar (r.m.s. deviation = 0.031 Å) and forms dihedral angles of 64.97 (7) and 18.52 (6)° with the phenyl ring and the (iminomethyl)phenol group, respectively. In the crystal, centrosymmetric molecules are linked by pairs of C—H...π interactions into dimeric units, which are further connected by O–H...N hydrogen bonds to form layers parallel to (101).

crystal structureCrystallographyHydrogen bondimidazo[12a]pyridine derivativeGeneral ChemistryCrystal structureDihedral angleCondensed Matter PhysicsRing (chemistry)Bioinformaticshydrogen bondingC—H⋯π inter­actionsMedicinal chemistryData ReportsCrystalchemistry.chemical_compoundC—H...π interactionschemistryQD901-999Group (periodic table)PhenolGeneral Materials ScienceMethyl groupActa crystallographica. Section E, Crystallographic communications
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Crystal structure and Hirshfeld surface analysis of 4-allyl-2-meth­oxy-6-nitro­phenol

2020

The crystal structure of 4-allyl-2-meth­oxy-6-nitro­phenol, which crystallizes in the centrosymmetric space group P with three independent mol­ecules in the asymmetric unit, is reported along with the Hirshfeld surface analysis.

crystal structureStackingCrystal structure010402 general chemistry01 natural sciencesResearch Communicationschemistry.chemical_compoundNitric acidNitrationHirshfeld surface analysisGeneral Materials SciencenitroeugenolCrystallography010405 organic chemistryHydrogen bondAromaticityGeneral ChemistryCondensed Matter PhysicsNMR0104 chemical sciencesCrystallographynitro­eugenolchemistryQD901-999hydrogen bondsNitroIRHydroxideActa Crystallographica Section E: Crystallographic Communications
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Crystal structure of bis-(azido-κN)bis[2,5-bis(pyridin-2-yl)-1,3,4-thia-diazole-κ(2) N (2),N (3)]cobalt(II).

2015

The structure of the title compound is isotypic with that of the analogous nickel(II) complex, in which the CoN6 core shows an axially weakly compressed octa­hedral geometry as opposed to the almost regular geometry exhibited by the NiN6 octa­hedron.

crystal structureDenticityStereochemistryπ–π inter­actionsCrystal structuretransition metalResearch Communicationslcsh:Chemistrychemistry.chemical_compoundazide compounds25-bis­(pyridin-2-yl)-134-thia­diazole ligandPyridineGeneral Materials ScienceChemistryLigandGeneral ChemistryCondensed Matter Physicshydrogen bondingCrystallographylcsh:QD1-99925-bis(pyridin-2-yl)-134-thiadiazole ligandπ–π interactionsDiazoleSodium azideAzideTrifluoromethanesulfonateActa crystallographica. Section E, Crystallographic communications
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Crystal structure of (1S,3R,8R,9S,10R)-10-bromomethyl-2,2-dichloro-9,10-epoxy-3,7,7-trimethyltricyclo[6.4.0.01,3]dodecane

2015

The title compound, C16H23BrCl2O, was synthesized in three steps from β-himachalene (3,5,5,9-tetramethyl-2,4a,5,6,7,8-hexahydro-1H-benzocycloheptene), which was isolated from the essential oil of the Atlas cedar (cedrus atlantica). The molecule is built up from two fused six- and seven-membered rings, each linked to a three-membered ring. The six-membered ring has a screw-boat conformation, whereas the seven-membered ring displays a twist-boat conformation. The absolute structure was established unambiguously from anomalous dispersion effects.

crystal structureCrystallographyChemistryCedrus atlanticaπ–π inter­actionsGeneral ChemistryCrystal structureCondensed Matter PhysicsRing (chemistry)Data Reportslaw.inventionAbsolute structureCrystallographyQD901-999lawπ–π interactionsGeneral Materials Scienceβ-himachalene derivativeEssential oilActa Crystallographica Section E Crystallographic Communications
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5-Acetyl-6-methyl-4-phenyl-1-(prop-2-ynyl)-3,4-dihydropyrimidin-2(1H)-one

2017

The 4-dihydropyrimidin-2(1H)-one moiety of the title molecule, C16H16N2O2, displays a half-chair conformation. The least-squares mean plane through this heterocycle is almost perpendicular to the aromatic ring [dihedral angle = 89.52 (8)°] and to the prop-2-ynyl chain [C—C—N—C torsion angle of −73.2 (2)°]. The mean plane through the acetyl group makes a dihedral angle of 30.93 (10)° with the mean plane of the heterocycle. There is an intramolecular C—H...O hydrogen bond forming anS(6) ring motif. In the crystal, molecules are linked by pairs of N—H...O hydrogen bonds forming inversion dimers.

crystal structurephenyl010405 organic chemistryChemistryHydrogen bondPlane (geometry)PropynylCrystal structureDihedral angle010402 general chemistryRing (chemistry)acetyl01 natural sciences0104 chemical scienceschemistry.chemical_compoundCrystallography4-dihydropyrimidin-2(1H)-onehydrogen bondslcsh:QD901-999PerpendicularMoietylcsh:CrystallographypropynylIUCrData
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