scholarly journals Ultrafast Electron Diffraction Tomography for Structure Determination of the New Zeolite ITQ-58

2016 ◽  
Vol 138 (32) ◽  
pp. 10116-10119 ◽  
Author(s):  
Jorge Simancas ◽  
Raquel Simancas ◽  
Pablo J. Bereciartua ◽  
Jose L. Jorda ◽  
Fernando Rey ◽  
...  
Keyword(s):  
Electron Diffraction ◽  
Structure Determination ◽  
Diffraction Tomography ◽  
Ultrafast Electron Diffraction

Structure determination of a new phase Ni 8 Ti 5 by electron diffraction tomography

2017 ◽  
Vol 85 ◽  
pp. 110-116 ◽  
Author(s):  
Mariana Klementová ◽  
Miroslav Karlík ◽  
Pavel Novák ◽  
Lukáš Palatinus
Keyword(s):  
Electron Diffraction ◽  
Structure Determination ◽  
Diffraction Tomography ◽  
New Phase

scholarly journals Structure Determination of Donwilhelmsite by Electron Diffraction Tomography

2019 ◽  
Vol 25 (S2) ◽  
pp. 2450-2451
Author(s):  
Mariana Klementova ◽  
Lukas Palatinus ◽  
Jörg Fritz ◽  
Ansgar Greshake ◽  
Richard Wirth ◽  
...  
Keyword(s):  
Electron Diffraction ◽  
Structure Determination ◽  
Diffraction Tomography

scholarly journals Ab Initio Structure Determination of Cu2–xTe Plasmonic Nanocrystals by Precession-Assisted Electron Diffraction Tomography and HAADF-STEM Imaging

2018 ◽  
Vol 57 (16) ◽  
pp. 10241-10248 ◽  
Author(s):  
Enrico Mugnaioli ◽  
Mauro Gemmi ◽  
Renyong Tu ◽  
Jeremy David ◽  
Giovanni Bertoni ◽  
...  
Keyword(s):  
Electron Diffraction ◽  
Ab Initio ◽  
Structure Determination ◽  
Diffraction Tomography ◽  
Ab Initio Structure

scholarly journals A nanocrystalline monoclinic CaCO3precursor of metastable aragonite

2018 ◽  
Vol 4 (12) ◽  
pp. eaau6178 ◽  
Author(s):  
Péter Németh ◽  
Enrico Mugnaioli ◽  
Mauro Gemmi ◽  
György Czuppon ◽  
Attila Demény ◽  
...  
Keyword(s):  
Electron Diffraction ◽  
Structure Determination ◽  
Diffuse Scattering ◽  
Diffraction Tomography ◽  
Synthetic Material ◽  
Near Surface ◽  
Surface Conditions ◽  
Terrestrial Sediments ◽  
Living Organisms ◽  
New Phase

Despite its thermodynamical metastability at near-surface conditions, aragonite is widespread in marine and terrestrial sediments. It abundantly forms in living organisms, and its abiotic formation is favored in waters of a Mg2+/Ca2+ratio > 1.5. Here, we provide crystallographic evidence of a nanocrystalline CaCO3polymorph, which precipitates before aragonite in a cave. The new phase, which we term monoclinic aragonite (mAra), is crystallographically related to ordinary, orthorhombic aragonite. Electron diffraction tomography combined with structure determination demonstrates that mAra has a layered aragonite structure, in which some carbonates can be replaced by hydroxyls and up to 10 atomic % of Mg can be incorporated. The diagnostic electron diffraction features of mAra are diffuse scattering and satellite reflections along aragonite {110}. Similar features have previously been reported—although unrecognized—from biogenic aragonite formed in stromatolites, mollusks, and cyanobacteria as well as from synthetic material. We propose that mAra is a widespread crystalline CaCO3that plays a hitherto unrecognized key role in metastable aragonite formation.

Structure determination of modulated structures by powder X-ray diffraction and electron diffraction

2016 ◽  
Vol 3 (11) ◽  
pp. 1351-1362 ◽  
Author(s):  
Zhengyang Zhou ◽  
Lukáš Palatinus ◽  
Junliang Sun
Keyword(s):  
Electron Diffraction ◽  
Structure Determination ◽  
X Ray Diffraction ◽  
X Ray ◽  
Modulated Structures ◽  
Conventional Methods

The combination of PXRD and ED is applied to determine modulated structures which resist solution by more conventional methods.

scholarly journals Procedure and Computer Programs for the Structure Determination of Gaseous Molecules from Electron Diffraction Data.

1969 ◽  
Vol 23 ◽  
pp. 3224-3234 ◽  
Author(s):  
B. Andersen ◽  
H. M. Seip ◽  
T. G. Strand ◽  
R. Stølevik ◽  
Gunner Borch ◽  
...  
Keyword(s):  
Electron Diffraction ◽  
Diffraction Data ◽  
Structure Determination ◽  
Computer Programs ◽  
Electron Diffraction Data

Interrupted silicogermanate with 10-ring channels: synthesis and structure determination by combining rotation electron diffraction and powder X-ray diffraction

2017 ◽  
Vol 4 (10) ◽  
pp. 1654-1659 ◽  
Author(s):  
Yilin Wang ◽  
Yunchen Wang ◽  
Jie Su ◽  
Xiaowei Song ◽  
Wei Wan ◽  
...  
Keyword(s):  
Electron Diffraction ◽  
Structure Determination ◽  
X Ray Diffraction ◽  
X Ray

Structure determination of silicogermanate with sti layers pillared by D4R/Ge7 units by rotation electron diffraction and powder X-ray diffraction.

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