Search results for "Matter"

showing 10 items of 16762 documents

Crystal structure of bis{μ2-3-(pyridin-2-yl)-5-[(1,2,4-triazol-1-yl)methyl]-1,2,4-triazolato}bis[aquanitratocopper(II)] dihydrate

2016

The title complex is a centrosymmetric dimer with a copper–copper distance of 4.0408 (3) Å. The Cu ions in the dimer are bridged by two triazole rings and oxygen donor ligands from water mol­ecules and nitrate anions in a distorted octa­hedral coordination geometry.

crystal structureDimerTriazoledinuclear copper complexchemistry.chemical_elementCrystal structure010402 general chemistry01 natural sciencesResearch CommunicationsCrystalchemistry.chemical_compound124-triazoleGeneral Materials ScienceCoordination geometryCrystallography010405 organic chemistryHydrogen bond124-TriazoleGeneral ChemistryCondensed Matter PhysicsCopper0104 chemical sciencesCrystallographychemistryQD901-999hydrogen bondsActa Crystallographica Section E: Crystallographic Communications
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Crystal structure, Hirshfeld surface analysis and HOMO–LUMO analysis of (E)-4-bromo-N′-(4-methoxybenzylidene)benzohydrazide

2018

The title Schiff base compound, C15H13BrN2O2, displays an E configuration with respect to the C=N double bond, which forms a dihedral angle of 58.06 (9)° with the benzene ring. In the crystal, the molecules are linked into chains parallel to the b axis by N—H...O and C—H...O hydrogen bonds, giving rise to rings with an R 2 1(6) graph-set motif. The chains are further linked into a three-dimensional network by C—H...π interactions. A Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from C...H (33.2%), H...H (27.7%), Br...H/H...Br (14.2%) and O...H/H...O (13.6%) interactions. The title compound has also been characterized by frontier molecu…

crystal structureDouble bondCrystal structureDihedral angle010402 general chemistryRing (chemistry)01 natural sciencesCrystalSchiff basechemistry.chemical_compoundHirshfeld surface analysisGeneral Materials ScienceHOMO/LUMOchemistry.chemical_classificationCrystallographySchiff baseintermolecular interactions010405 organic chemistryHydrogen bondGeneral ChemistryCondensed Matter Physics0104 chemical sciencesCrystallographyHOMO–LUMO calculationchemistryQD901-999Acta Crystallographica Section E Crystallographic Communications
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Crystal structure of 3-mesityl-1-[(pyridin-2-yl)methyl]-3,4,5,6-tetrahydropyrimidin-1-ium bromide monohydrate

2015

In the title hydrated salt, C19H24N3+·Br−·H2O, the values of the N—C bond lengths within the tetrahydropyrimidinium ring indicate delocalization of the N=C double bond. In the cation, the dihedral angle formed by the pyridine and benzene rings is 14.97 (12)°. In the crystal, ions and water molecules are linked by O—H...Br, O—H...N, C—H...Br and C—H...O hydrogen bonds into chains running parallel to thebaxis.

crystal structureDouble bondCrystal structureDihedral angleBioinformaticsRing (chemistry)lcsh:Chemistrychemistry.chemical_compoundBromidePyridineGeneral Materials SciencePhysics::Chemical Physicstetrahydropyrimidiniumchemistry.chemical_classificationQuantitative Biology::BiomoleculesChemistryHydrogen bondGeneral ChemistryCondensed Matter Physicshydrogen bondingData ReportsBond lengthCrystallographyNHC precursorlcsh:QD1-999tetra­hydro­pyrimidiniumActa Crystallographica Section E: Crystallographic Communications
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Crystal structures of organoplatinum complexes containing alkyleugenoxyacetate and p-chloroaniline

2016

In the title trans-di­chlorido­platinum(II) complexes, the central PtII atom is further coordinated by the p-chloro­aniline N atom and ethyl­enic double bond of alkyl­eugenoxyacetate.

crystal structureDouble bondStereochemistryCrystal structure010403 inorganic & nuclear chemistryRing (chemistry)01 natural sciencesResearch Communicationstrans-dichloridoplatinum(II) complexeslcsh:Chemistry03 medical and health scienceschemistry.chemical_compound0302 clinical medicinep-chloroanilineGeneral Materials ScienceBenzenetrans-di­chlorido­platinum(II) complexesOrganoplatinumCoordination geometrychemistry.chemical_classificationHydrogen bondLigandp-chloro­anilineGeneral ChemistryCondensed Matter Physicshydrogen bonding0104 chemical sciencesCrystallographychemistrylcsh:QD1-999030220 oncology & carcinogenesisActa Crystallographica Section E: Crystallographic Communications
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Crystal structures of two platinum(II) complexes containing ethyl eugenoxyacetate and 2-amino-pyridine.

2017

The synthesis and crystal structures of two platinum(II) complexes containing one or two Cl atoms, an eugenol derivative and 2-amino­pyridine as ligand are described. The central PtII atom displays a distorted square-planar coordination.

crystal structureDouble bondStereochemistryPopulationDihedral angle010402 general chemistry010403 inorganic & nuclear chemistryRing (chemistry)01 natural sciencesResearch Communicationschemistry.chemical_compoundPyridineGeneral Materials Science2-aminopyridineeducationchemistry.chemical_classificationeducation.field_of_studyCrystallographyChemistryHydrogen bondLigandAromaticity2-amino­pyridineGeneral ChemistryCondensed Matter Physics0104 chemical sciencesCrystallographyQD901-999eugenolplatinum(II) complexes
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Crystal structure of chlorido-{4,5-dimeth-oxy-2-[(2,3-η)-2-prop-2-en-1-yl]phenyl-κC (1)}(piperidine-κN)platinum(II) ethanol monosolvate

2014

The title platinum(II) complex shows a trigonal–bipyramidal coordination and inter­molecular C—H⋯Cl, C—H⋯π and (C/O)—H⋯O hydrogen bonds.

crystal structureEthanolChemistryHydrogen bondchemistry.chemical_elementGeneral ChemistryCrystal structuremethyl­eugenolCondensed Matter Physicshydrogen bondingMedicinal chemistryResearch CommunicationsCrystallcsh:Chemistrychemistry.chemical_compoundmethyleugenollcsh:QD1-999General Materials SciencePiperidinePlatinumplatinum(II) complex
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Crystal structure and computational study of 3,4-dihydroxy-3-hydroxymethyl-9-methyl-6-methylidene-3a, 4,5,6,6a, 9,9a, 9b-octahydroazuleno[4,5-b]furan…

2015

WOS: 000370762300147

crystal structureHOMOLUMOMOPACPM3Crystal structureRing (chemistry)BioinformaticsMedicinal chemistryCentaurea polypodiifoliaCNDOResearch CommunicationsCrystalCNDO/2theoretical investigationchemistry.chemical_compoundFuranGeneral Materials SciencePhysics::Chemical PhysicsHOMO/LUMOQuantitative Biology::Biomoleculescynarinin ACrystallographyHydrogen bondGeneral ChemistryCondensed Matter PhysicschemistryQD901-999
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Crystal structure and Hirshfeld surface analysis of (E)-1-[2,2-dichloro-1-(4-nitrophenyl)ethenyl]-2-(4-fluorophenyl)diazene

2019

The dihedral angle between the 4-fluoro­phenyl ring and the nitro-substituted benzene ring of the title compound is 63.29 (8)°. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds into chains parallel to the c axis. The crystal packing is further stabilized by C—Cl⋯π, C—F⋯π and N—O⋯π inter­actions

crystal structureHydrogen bondChemistryStackingGeneral ChemistryCrystal structureDihedral angleCondensed Matter::Mesoscopic Systems and Quantum Hall EffectCondensed Matter PhysicsRing (chemistry)hydrogen bondingResearch Communications4-fluoro­phenyl ringCrystallcsh:ChemistryCrystallographylcsh:QD1-999Nitro4-fluorophenyl ringHirshfeld surface analysisGeneral Materials Sciencenitro-substituted benzene ringActa Crystallographica Section E: Crystallographic Communications
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1-(1-Benzyl-2,5-dimethyl-4-phenyl-1H-pyrrol-3-yl)ethanone

2017

In the title compound, C21H21NO, the dihedral angles between the planes of the phenyl and pyrrole rings are 47.04 (5) and 79.27 (3)°. In the crystal, centrosymmetrically related molecules are linked into dimers by pairs of C—H...O hydrogen bonds, forming rings of graph-set motifR22(16).

crystal structureHydrogen bondChemistryStereochemistryCrystal structureDihedral angle010402 general chemistry010403 inorganic & nuclear chemistry01 natural sciencesPyrrole derivatives0104 chemical sciencesCrystalCrystallographychemistry.chemical_compoundlcsh:QD901-999natural catalystCondensed Matter::Strongly Correlated Electronslcsh:Crystallographypyrrole derivativePyrroleIUCrData
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Crystal structure of 4-(4-chlorophenyl)-6-(morpholin-4-yl)pyridazin-3(2H)-one

2015

In the crystal, pairs of centrosymmetrically related mol­ecules are linked into dimers via N—H⋯O hydrogen bonds, forming (8) ring motifs. The dimers are connected via C—H⋯O and C—H⋯Cl hydrogen bonds, forming a three-dimensional network·Semi-empirical mol­ecular orbital calculations were carried out using the AM1 method.

crystal structureHydrogen bondCyclohexane conformationStackingpi-pi stacking interactionsGeneral ChemistryCrystal structureDihedral anglehydrogen bondingCondensed Matter PhysicsRing (chemistry)Research Communicationslcsh:ChemistryCrystalchemistry.chemical_compoundCrystallographylcsh:QD1-999chemistryπ–π stacking interactionsMorpholineGeneral Materials Sciencepyridazinone derivativeπ–π stacking inter­actions
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