Results 31 to 40 of about 191,600 (185)

Crystallography and DFT Studies of Synthesized Tetraketones

open access: yesActa Chimica Slovenica, 2022
Two tetraketone derivatives, one previously reported and one novel, were synthesized, whose structures have been confirmed by elemental analyses, NMR, HPLC-MS, and IR spectroscopy.
Elma Veljović   +6 more
doaj   +1 more source

Advances in martensitic transformations in Cu-based shape memory alloys achieved by in situ neutron and synchrotron X-ray diffraction methods [PDF]

open access: yes, 2012
This article deals with the application of several X-ray and neutron diffraction methods to investigate the mechanics of a stress induced martensitic transformation in Cu-based shape memory alloy polycrystals. It puts experimental results obtained by two
Sophie Berveiller   +7 more
core   +1 more source

Investigation on Physical Properties of Semiorganic Nonlinear Optical Glycine Zinc Sulfate Single Crystal [PDF]

open access: yesMaterials Research, 2015
Nonlinear optical single crystals of Glycine Zinc Sulfate (GZS) were grown by slow evaporation technique. Single crystal X-ray diffraction analysis revealed the crystal system and lattice parameter values.
Natarajan Nithya   +2 more
doaj   +2 more sources

Redetermination of the crystal structure of NbF4

open access: yesActa 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
doaj   +1 more source

Characterization of Aptamer-Protein Complexes by X-ray Crystallography and Alternative Approaches [PDF]

open access: yes, 2012
Aptamers are oligonucleotide ligands, either RNA or ssDNA, selected for high-affinity binding to molecular targets, such as small organic molecules, proteins or whole microorganisms.
Levisson, M.   +24 more
core   +1 more source

Realisation and measurement of (6–15) keV single-energy X-rays

open access: yesThe 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
doaj   +1 more source

HALOGEN-BONDED SUPRAMOLECULAR ARCHITECTURES INVOLVING 2,7-DIPYRIDYLFLUORENE AND 1,3,5-TRIFLUORO-2,4,6-TRIIODOBENZENE TECTONS – A SPECTACULAR EVOLUTION FROM CATEMERS TO 2D HALOGEN BOND ORGANIC FRAMEWORKS (XBOF)

open access: yesStudia 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
doaj   +1 more source

Picosecond x-ray diffraction studies of shocked single crystals

open access: yesSPIE Proceedings, 2006
The past few years have seen a rapid growth in the development and exploitation of X-ray diffraction on ultrafast time-scales. One area of physics which has benefited particularly from these advances is the the field of shock-waves. Whilst it has been known for many years that crystalline matter, subjected to uniaxial shock compression, can undergo ...
Wark, J   +23 more
openaire   +2 more sources

SFX analysis of non-biological polycrystalline samples

open access: yesIUCrJ, 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
doaj   +1 more source

Structure of Biologically Active Benzoxazoles: Crystallography and DFT Studies

open access: yesActa 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
doaj   +1 more source

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