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Zero-Dimensional Cesium Lead Halides: History, Properties, and Challenges. [PDF]

open access: yesJ Phys Chem Lett, 2018
Akkerman QA, Abdelhady AL, Manna L.
europepmc   +1 more source

Anion Distribution, Structural Distortion, and Symmetry-Driven Optical Band Gap Bowing in Mixed Halide Cs2SnX6 Vacancy Ordered Double Perovskites. [PDF]

open access: yesChem Mater, 2019
Karim MMS   +7 more
europepmc   +1 more source
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Elpasolite from hyperalkaline pegmatite of the Khibiny pluton, Kola Peninsula. Symmetry of elpasolite

Geology of Ore Deposits, 2008
Elpasolite, K2NaAlF6, has been found for the first time in a pegmatite related to peralkaline foid syenite at Mt. Koashva, Khibiny alkaline pluton, Kola Peninsula, Russia, as pale pink octahedral crystals up to 2 mm in size within cavities in the natrolite core of pegmatite in association with amicite, sodalite, aegirine, pectolite, catapleiite ...
I. V. Pekov   +5 more
openaire   +1 more source

Orientation disorder in ammonium elpasolites

Journal of Fluorine Chemistry, 2003
Abstract Crystal structures of the known (NH4)3AlF6(I) and (NH4)3FeF6(III) and new (NH4)3TiOF5(II) elpasolites were refined by localizing anions (F−, O2−) in four acceptable positions of the cubic system Fm3m (Z=4) with a=8.9401(3), 9.1104(3), 9.110(1) A, respectively. According to the refinement data and a rather large entropy change due to fluorine
A.A Udovenko   +2 more
openaire   +1 more source

Prediction of new halo-elpasolites

Russian Journal of Inorganic Chemistry, 2016
We predicted elpasolites having the composition A2BCHal6 (A and C stand for different monovalent metals; B stands for trivalent metals; and Hal for F, Cl, or Br) that have not been obtained yet. Prediction was based on the data on properties of elements and simple halides only.
N. N. Kiselyova   +4 more
openaire   +1 more source

Ferroelastic phase transitions in elpasolites

Ferroelectrics, 1985
The crystallography analysis of the rotation distortions in elpasolite type crystals1 showed that the structure has instability of high symmetry cubic phase (Go=O5h) in respect to rotations of the octahedra. The superposition of the two rotation types leads to different distorted phases.
I. N. Flerov   +6 more
openaire   +1 more source

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