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    Crystal structure and in situ decomposition of Eu(BH<inf>4</inf>)<inf>2</inf> and Sm(BH<inf>4</inf>)<inf>2</inf>

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    Fulltext not available
    Authors
    Humphries, Terry
    Ley, M.
    Frommen, C.
    Munroe, K.
    Jensen, T.
    Hauback, B.
    Date
    2015
    Type
    Journal Article
    
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    Citation
    Humphries, T. and Ley, M. and Frommen, C. and Munroe, K. and Jensen, T. and Hauback, B. 2015. Crystal structure and in situ decomposition of Eu(BH<inf>4</inf>)<inf>2</inf> and Sm(BH<inf>4</inf>)<inf>2</inf>. Journal of Materials Chemistry A. 3 (2): pp. 691-698.
    Source Title
    Journal of Materials Chemistry A
    DOI
    10.1039/c4ta04080e
    ISSN
    2050-7488
    School
    Department of Physics and Astronomy
    URI
    http://hdl.handle.net/20.500.11937/2879
    Collection
    • Curtin Research Publications
    Abstract

    Synthesis of halide free rare earth metal (RE) borohydride complexes is demonstrated by the metathesis reaction of trivalent RE metal chlorides and LiBH<inf>4</inf> in ethereal solution, combined with solvent extraction using dimethyl sulfide. The crystal structures of Eu(BH<inf>4</inf>)<inf>2</inf> and Sm(BH<inf>4</inf>)<inf>2</inf> are orthorhombic (space group Pbcn) and are shown to be related to the structure of Sr(BH<inf>4</inf>)<inf>2</inf> by Rietveld refinement. Further, the thermal decomposition of these materials has been studied by in situ synchrotron radiation powder X-ray diffraction, differential scanning calorimetry, thermogravimetric analysis, mass spectrometry and Sieverts measurements. The decomposition pathway of these solvent extracted materials has been compared against materials prepared by mechano-chemistry, the process of which is simplified by the absence of chloride impurities. This journal is

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