Average and Local Structure Analysis from Diffraction
Structure analysis of adsorbates on single crystal surfaces using photoelectron diffraction
... While this model produces a reasonably good R-factor especially when the weak scattering ability of Pt is considered, a questionable result of this configuration is evident in the C-O bond lengths. The C-O bond length ...
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Structure and properties of nanostructured materials from atomistic modeling and advanced diffraction methods
... Powder average of the intensity The tremendous computational power of GPUs has been exploited to allow the application of the original formulation of the DSE [68, 69]: the embarrassingly parallel nature of ...
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The determination of structure factors from kinematic and dynamic effects in x ray diffraction
... displaced from their mean ...X-ray diffraction pattern is produced by atoms which are fixed in position, the observed intensity being the average of the diffracted intensities for all the possible ...
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Crystal Structure Determination of 5,6-Dibromoacenaphthene from X-ray Powder Diffraction Data
... crystal structure of 5,6-dibromoacenaphthene has been successfully determined from X-ray powder diffraction data with monoclinic crystals, P2 1 /n, a = ...molecular structure of 1 was solved ...
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Molecular Dynamics and X-ray Powder Diffraction Simulations: Investigation of nano-polycrystalline microstructure at the atomic scale coupling local structure configurations and X-ray powder Diffraction techniques
... the diffraction pattern for a given domain in a cluster, following a Bragg-type approach (peak by peak), paves the way to testing microstructural models and analysing the microstructure ...The analysis of ...
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Adsorbate structure determination using energy scanned photoelectron diffraction
... desorbed from the surface in a TPD ex- periment at a peak temperature of 350-360 K, so above this temperature it is clear that the average stoichiometry of the residual C 3 H x fragment after CO extraction ...
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Local and Average Structures in Ferroelectrics Under Perturbing Fields.
... cut off at a Q max = 34 Å -1 . Due to the high resolution at high Q of NPDF, PDFs have clearly defined atom-atom distances (pair correlations) to a high r-range (approximately 100 Å). Using the Rietveld refinement ...
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Enhanced structure determination from powder diffraction data via algorithm optimisation and the use of conformational information
... the average improvement factor nearly doubles for all ...this average can be considered to be somewhat skewed by the inclusion of the (capped) factor of 100 improvement assigned to those structures that ...
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Crystal structure of trirubidium citrate from laboratory X ray powder diffraction data and DFT comparison
... Neumann, 2014). This discussion uses the DFT-optimized structure. Most of the bond lengths, bond angles, and torsion angles fall within the normal ranges indicated by a Mercury Mogul geometry check (Macrae et al., ...
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Local Atomic Structure Analysis of Zr Ni and Zr Cu Metallic Glasses Using Electron Diffraction
... MRO structure in Zr 66:7 Ni 33:3 is more complex with a large dispersion of interplanar spacings than those in Zr 66:7 Cu 33:3 ...constructed structure models including about 5000 atoms with the help of ...
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The local adsorption structure of benzene on Si(001) (2 × 1): a photoelectron diffraction investigation
... taken on intermolecular effects on the adsorption energies and in steric effects that may influence the ability of the surface to achieve equilibrium. In general all theoretical calculations of these adsorption energies ...
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Vertical Ionization Energies from the Average Local Electron Energy Function
... Even more important is the fact that the ionization energy is strongly linked to chemically relevant concepts such as electronegativity, polarizability and atomic-shell structure [5–7]. This means that the ...
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A local structure graph model for network analysis
... resulting from boundary effects. In the Buell-Small succession network, the average proportion of these type of neighbors realized is ...obtained from the fitted model, the average proportion ...
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Atomic structure of Mg-based metallic glasses from molecular dynamics and neutron diffraction.
... Each model was firstly equilibrated at 1500 K for 300 ps and then continuously cooled down to room temperature in 100 K steps being equilibrated for 100 ps at each temperature. Finally, each model was run for 300 ps at ...
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ANALYSIS OF TIME-OF-FLIGHT DIFFRACTION DATA FROM LIQUID AND AMORPHOUS SAMPLES
... Furthermore our experience to date has shown that there really is no fundamental barrier to diffraction data being accurately analysed to structure factor or even pair [r] ...
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Quantitative determination of the local structure of thymine on Cu(1 1 0) using scanned energy mode photoelectron diffraction
... wavefield from a core level of an adsorbate atom with components of the same wavefield which are elastically backscattered by the nearby substrate ...the local adsorption geometry around the emitter ...
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The local structure of OH species on the V2O3(0 0 0 1) surface: a scanned energy mode photoelectron diffraction study
... hydrogen in the residual chamber pressure even at UHV conditions. Further evidence for this conclusion was the appearance of a peak in the valence region photoemission spectrum at a binding energy of ~11 eV, also ...
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Peer Effects in Education, Sport, and Screen Activities: Local Aggregate or Local Average?
... Statistical analysis Let us now test our theoretical local-aggregate and local-average models for di¤erent out- comes using the J test described ...network structure (conditional on ...
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Detailed Analysis of Amplitude and Slope Diffraction Coefficients for knife-edge structure in S-UTD-CH Model
... waves from a sharp edge, wedge, corner and narrow slits. The diffraction takes place in the case of relatively higher wavelength of electromagnetic wave from obstacle or slit ...explain ...
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Application of X-ray Diffraction Methods and Molecular Mechanics Simulations to Structure Determination and Cotton Fiber Analysis
... using diffraction data, and provides simple steps for publication of the ...trial structure solutions by calculating the phases of a subset of the hkl reflections from the SAINT output ...and ...
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