Search results for "intra­molecular hydrogen bond"

showing 4 items of 4 documents

Crystal structure of 4-[(adamantan-1-yl)amino]­naphthalene-1,2-dione

2019

The title compound, an example of a stable 1,2-naphtho­quinone, illustrates steric buttressing of the adamantanyl group.

Steric effectscrystal structureAdamantaneintra­molecular hydrogen bondingadamantanenaphthoquinoneAdamantaneCrystal structureN— HO hydrogen bonding010402 general chemistry010403 inorganic & nuclear chemistry01 natural sciencesResearch CommunicationsCrystallcsh:ChemistryDelocalized electronchemistry.chemical_compoundNaphthoquinoneGroup (periodic table)General Materials ScienceNaphthaleneintramolecular hydrogen bondingCrystal structurenaphtho­quinone548.81 Cristalografía estructuralIntramolecular hydrogen bondingGeneral ChemistryCondensed Matter PhysicsNaphthoquinone0104 chemical sciencesCrystallographychemistrylcsh:QD1-999N—H...O hydrogen bondingN—H⋯O hydrogen bondingActa Crystallographica Section E: Crystallographic Communications
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Crystal structure of (E)-4-methoxy-2-{[(5-methylpyridin-2-yl)imino]methyl}phenol

2015

The molecule of the title Schiff base compound, C14H14N2O2, displays anEconformation with respect the imine C=N double bond. The molecule is approximately planar, with the dihedral angle formed by the planes of the pyridine and benzene rings being 5.72 (6)°. There is an intramolecular hydrogen bond involving the phenolic H and imine N atoms.

chemistry.chemical_classificationcrystal structureCrystallographySchiff baseDouble bondStereochemistryHydrogen bondintramolecular hydrogen bondImineintra­molecular hydrogen bondN-heterocycleGeneral ChemistryCrystal structureDihedral angleCondensed Matter PhysicsMedicinal chemistryData ReportsSchiff basechemistry.chemical_compoundchemistryQD901-999PyridineGeneral Materials ScienceBenzeneActa Crystallographica Section E Crystallographic Communications
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Three phenanthroline-metal complexes with topologically similar but geometrically different conformations.

2016

Two out of the three very similar complexes described present twofold symmetry but not the third one, probably by way of a strong intra­molecular C—H⋯O hydrogen bond disrupting the symmetry, a fact which is analysed in detail.

crystal structureStereochemistryPhenanthrolinechemistry.chemical_elementZincCrystal structureQuímica Inorgánica y Nuclear010402 general chemistry010403 inorganic & nuclear chemistry01 natural sciencesstrong C—H⋯O intra­molecular hydrogen bondsCRYSTAL STRUCTUREResearch Communicationslcsh:ChemistryMetalBase (group theory)//purl.org/becyt/ford/1 [https]chemistry.chemical_compoundGroup (periodic table)strong C—H...O intramolecular hydrogen bondsCd and Zn complexesPEROXODISULFATE ANION//purl.org/becyt/ford/1.4 [https]General Materials ScienceSTRONG C - H⋯O INTRAMOLECULAR HYDROGEN BONDSCadmiumHydrogen bondCiencias QuímicasGeneral ChemistryCondensed Matter Physicsperoxodisulfate anion0104 chemical sciencesCrystallographylcsh:QD1-999chemistryvisual_artvisual_art.visual_art_mediumperoxodi­sulfate anionCD AND ZN COMPLEXESCIENCIAS NATURALES Y EXACTASActa crystallographica. Section E, Crystallographic communications
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Crystal structure of (E)-2-(tert-butyl­amino)-4-(tert-butyl­imino)­naphthalen-1(4H)-one

2018

The title compound is the first example of a naphtho­quinone imine derivative crystallizing in the 4-imine/2-amine tautomeric form having bulky tert-butyl substituents at the N atoms.

crystal structureintra­molecular hydrogen bondingIminenaphthoquinoneCrystal structure010402 general chemistry01 natural sciencesMedicinal chemistryResearch Communicationslcsh:Chemistrychemistry.chemical_compoundsymbols.namesakeGeneral Materials ScienceIntra­molecular hydrogen bondingAlkylchemistry.chemical_classificationintramolecular hydrogen bonding010405 organic chemistryHydrogen bondCrystal structurenaphtho­quinoneGeneral ChemistryCondensed Matter PhysicsTautomer0104 chemical scienceslcsh:QD1-999chemistryNaphtho­quinonesymbols540 QuímicaAmine gas treatingN—H...O hydrogen bondingvan der Waals forceDerivative (chemistry)N—H⋯O hydrogen bondingActa Crystallographica Section E: Crystallographic Communications
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