Results 31 to 40 of about 412,914 (198)
Redetermination of the crystal structure of NbF4
Acta Crystallographica Section E: Crystallographic Communications, 2016 Single crystals of NbF4, niobium(IV) tetrafluoride, were synthesized by disproportionation of Nb2F5 at 1273 K in a sealed niobium tube, extracted and studied by single-crystal X-ray diffraction.
Jascha Bandemehr +2 more
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X-ray diffraction using focused-ion-beam-prepared single crystals [PDF]
Journal of Applied Crystallography, 2020 High-quality single-crystal X-ray diffraction measurements are a prerequisite for obtaining precise and reliable structure data and electron densities. The single crystal should therefore fulfill several conditions, of which a regular defined shape is of particularly high importance for compounds consisting of heavy elements with high X-ray absorption ...
Leisegang, Tilmann +6 more
openaire +4 more sources
Halogen bonding stabilizes a cis-azobenzene derivative in the solid state: A crystallographic study [PDF]
, 2017 Crystals of trans- and cis-isomers of a fluorinated azobenzene derivative have been prepared and characterized by single-crystal X-ray diffraction. The presence of F atoms on the aromatic core of the azobenzene increases the lifetime of the metastable ...
Fernandez-Palacio F. +6 more
core +1 more source
Realisation and measurement of (6–15) keV single-energy X-rays
The Journal of Engineering, 2019 Since the German physicist Roentgen discovered X-rays, X-rays have been widely used in medical diagnostics, industrial non-destructive testing, and scientific research.
Mengshi Li +3 more
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Studia Universitatis Babes-Bolyai Chemia, 2022 A spectacular 2D Halogen Bond Organic Framework (XBOF) was prepared by the mechanochemical solvent-drop grinding method (SCD) starting from 2,7-dipyridylfluorene and 1,3,5-trifluoro-2,4,6-triiodobenzene tectons.
Lidia CĂTA +5 more
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On the ratio of the relativistic electron PXR in the Bragg direction and in the forward direction in Laue geometry [PDF]
, 2010 Parametric X-ray radiation and parametric X-ray radiation at a small angle with respect to the velocity of a relativistic electron crossing a single crystal plate in Laue scattering geometry are studied based on the dynamic X-ray diffraction ...
Blazhevich, S. V., Noskov, A. V.
core +1 more source
SFX analysis of non-biological polycrystalline samples
IUCrJ, 2015 Serial femtosecond crystallography (SFX) is capable of collecting three-dimensional single-crystal diffraction data using polycrystalline samples. This may dramatically enhance the power of X-ray powder diffraction.
Tao Zhang +6 more
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Structure of Biologically Active Benzoxazoles: Crystallography and DFT Studies
Acta Chimica Slovenica, 2021 Using X-ray single crystal diffraction, the crystal structures of biologically active benzoxazole derivatives were determined. DFT calculation was performed with standard 6-31G*(d), 6-31G** and 6-31+G* basis set to analyze the molecular geometry and ...
Una Glamočlija +7 more
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Electrostatic Molecular Interaction from X-ray Diffraction Data. II. Test on Theoretical Pyrazine Data [PDF]
, 1983 In a previous paper [Moss & Feil (1981). Acta Cryst. A37, 414-421] a method was reported to calculate the electrostatic potential and the electrostatic interaction energy from single-crystal X-ray diffraction data.
Feil, Dirk, Moss, Grant
core +3 more sources
Redetermination of LaZn5 based on single crystal X-ray diffraction data
Acta Crystallographica Section E, 2012 The crystal structure of the already known binary title compound LaZn5 (lanthanum pentazinc) (space group P6/mmm, Pearson symbol hP6, CaCu5 structure type) has been redetermined from single-crystal X-ray diffraction data.
Igor Oshchapovsky +3 more
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