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  On the Preparation and Structure of Caesium Aluminium Tetrahydride

Krech, D., Zibrowius, B., Weidenthaler, C., & Felderhoff, M. (2014). On the Preparation and Structure of Caesium Aluminium Tetrahydride. European Journal of Inorganic Chemistry, 2014(33), 5683-5688. doi:10.1002/ejic.201402629.

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 Creators:
Krech, Daniel1, Author              
Zibrowius, Bodo2, Author              
Weidenthaler, Claudia3, Author              
Felderhoff, Michael1, Author              
Affiliations:
1Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445589              
2Service Department Farès (NMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445623              
3Research Group Weidenthaler, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1950291              

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Free keywords: Aluminum; Cesium; Poly­morphism; NMR spectroscopy; Solid-state structures
 Abstract: A new tetragonal phase of CsAlH4 was observed after the precipitation of CsAlH4 from a diglyme solution with an inert solvent. This new phase and the previously described orthorhombic phase were characterized by a combination of X-ray powder diffraction analysis and 27Al and 133Cs solid-state NMR spectroscopy. The transformation of the tetragonal CsAlH4 phase into the orthorhombic CsAlH4 phase can be induced by thermal treatment, whereas the opposite process can be stimulated by mechanical treatment. The phase transformation processes are almost completely reversible and can be performed several times without any observable decomposition of CsAlH4. The structure of the tetragonal CCsAlH4 phase (space group I41/a) was solved from X-ray powder diffraction data, and the lattice parameters were determined to be a = 5.6732(4) and c = 14.2795(11) Å.

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Language(s): eng - English
 Dates: 2014-10-142014-11-01
 Publication Status: Published in print
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/ejic.201402629
 Degree: -

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Title: European Journal of Inorganic Chemistry
  Abbreviation : Eur. J. Inorg. Chem.
Source Genre: Journal
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Publ. Info: Weinheim, Germany : Wiley-VCH
Pages: - Volume / Issue: 2014 (33) Sequence Number: - Start / End Page: 5683 - 5688 Identifier: ISSN: 1434-1948
CoNE: https://pure.mpg.de/cone/journals/resource/954926953810_1