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Orthorhombic In2O3: A Metastable Polymorph of Indium Sesquioxide

Bekheet, Maged F. and Schwarz, Marcus R. and Lauterbach, Stefan and Kleebe, Hans-Joachim and Kroll, Peter and Riedel, Ralf and Gurlo, Aleksander (2013):
Orthorhombic In2O3: A Metastable Polymorph of Indium Sesquioxide.
In: Angewandte Chemie International Edition, 52 (25), Wiley-VCH Verlag GmbH & Co. KGaA, pp. 6531-6535, ISSN 14337851,
[Online-Edition: http://dx.doi.org/10.1002/anie.201300644],
[Article]

Abstract

The way is open for the physical and chemical characterization and single-crystal growth of the orthorhombic o′-In2O3 polymorph. Orthorhombic In2O3 is synthesized from rhombohedral corundum-type rh-In2O3 under moderately high-pressure and high-temperature conditions (8–9 GPa, 600–1100 °C) followed by recovery to ambient pressure and temperature. The crystal-structure data at ambient conditions confirm unambiguously the Rh2O3(II)-type structure.

Item Type: Article
Erschienen: 2013
Creators: Bekheet, Maged F. and Schwarz, Marcus R. and Lauterbach, Stefan and Kleebe, Hans-Joachim and Kroll, Peter and Riedel, Ralf and Gurlo, Aleksander
Title: Orthorhombic In2O3: A Metastable Polymorph of Indium Sesquioxide
Language: English
Abstract:

The way is open for the physical and chemical characterization and single-crystal growth of the orthorhombic o′-In2O3 polymorph. Orthorhombic In2O3 is synthesized from rhombohedral corundum-type rh-In2O3 under moderately high-pressure and high-temperature conditions (8–9 GPa, 600–1100 °C) followed by recovery to ambient pressure and temperature. The crystal-structure data at ambient conditions confirm unambiguously the Rh2O3(II)-type structure.

Journal or Publication Title: Angewandte Chemie International Edition
Volume: 52
Number: 25
Publisher: Wiley-VCH Verlag GmbH & Co. KGaA
Uncontrolled Keywords: density-functional calculations, high-pressure reactions, oxides, phase transitions, solid-phase synthesis
Divisions: 11 Department of Materials and Earth Sciences > Earth Science > Geo-Material-Science
11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
11 Department of Materials and Earth Sciences > Earth Science
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 18 Feb 2014 13:22
Official URL: http://dx.doi.org/10.1002/anie.201300644
Identification Number: doi:10.1002/anie.201300644
Funders: Financial support by the German Research Foundation within the priority programme SPP1236 and DESY are greatly acknowledged., The authors thank he Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, for the opportunity to perform experiments at the MAX200X press.
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