Search results for "Folded structure"

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Single-molecule magnet properties of a monometallic dysprosium pentalene complex

2018

The pentalene-ligated dysprosium complex [(η8-Pn†)Dy(Cp*)] (1Dy) (Pn† = [1,4-(iPr3Si)2C8H4]2−) and its magnetically dilute analogue are single-molecule magnets, with energy barriers of 245 cm−1. Whilst the [Cp*]− ligand in 1Dy provides a strong axial crystal field, the overall axiality of this system is attenuated by the unusual folded structure of the [Pn†]2− ligand. peerReviewed

magneettiset ominaisuudetMaterials sciencePentalenechemistry.chemical_element010402 general chemistry01 natural sciencesCatalysisCrystalchemistry.chemical_compoundMaterials Chemistrycoordination complexesSingle-molecule magnetta116010405 organic chemistryLigandFolded structureMetals and AlloyskompleksiyhdisteetGeneral Chemistry0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCrystallographychemistryMagnetCeramics and CompositesDysprosiummagnetic propertiesChemical Communications
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Static Properties of a Simulated Supercooled Polymer Melt: Structure Factors, Monomer Distributions Relative to the Center of Mass, and Triple Correl…

2004

We analyze structural and conformational properties in a simulated bead-spring model of a non-entangled, supercooled polymer melt. We explore the statics of the model via various structure factors, involving not only the monomers, but also the center of mass (CM). We find that the conformation of the chains and the CM-CM structure factor, which is well described by a recently proposed approximation [Krakoviack et al., Europhys. Lett. 58, 53 (2002)], remain essentially unchanged on cooling toward the critical glass transition temperature of mode-coupling theory. Spatial correlations between monomers on different chains, however, depend on temperature, albeit smoothly. This implies that the g…

MODE-COUPLING THEORYMaterials scienceGLASS-TRANSITIONRELAXATION REGIMEpacs:61.20.JaThermodynamicsFOS: Physical sciencesCondensed Matter - Soft Condensed Matter01 natural sciencesTriple correlation010305 fluids & plasmasCOHERENT SCATTERINGchemistry.chemical_compoundHOVE CORRELATION-FUNCTIONS0103 physical sciencesddc:530010306 general physicsSupercoolingStaticsCHAIN-FOLDED STRUCTURESchemistry.chemical_classificationQuantitative Biology::BiomoleculesPolymerMOLECULAR-DYNAMICS SIMULATIONPACS: 61.25.Hq 61.20.JaCondensed Matter::Soft Condensed MatterMonomerchemistrypacs:61.25.HqLENNARD-JONES SYSTEMBETA-RELAXATIONSoft Condensed Matter (cond-mat.soft)PHASE-TRANSITIONSCenter of massGlass transitionStructure factor[PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]
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