Crystal structure and in situ decomposition of Eu(BH4)2 and Sm(BH4)2
Synthesis of halide free rare earth metal (RE) borohydride complexes is demonstrated by the metathesis reaction of trivalent RE metal chlorides and LiBH4 in ethereal solution, combined with solvent extraction using dimethyl sulfide. The crystal structures of Eu(BH4)2 and Sm(BH4)2 are orthorhombic (s...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
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Royal Society of Chemistry
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/2879 |
| _version_ | 1848744074484383744 |
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| author | Humphries, Terry Ley, M. Frommen, C. Munroe, K. Jensen, T. Hauback, B. |
| author_facet | Humphries, Terry Ley, M. Frommen, C. Munroe, K. Jensen, T. Hauback, B. |
| author_sort | Humphries, Terry |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Synthesis of halide free rare earth metal (RE) borohydride complexes is demonstrated by the metathesis reaction of trivalent RE metal chlorides and LiBH4 in ethereal solution, combined with solvent extraction using dimethyl sulfide. The crystal structures of Eu(BH4)2 and Sm(BH4)2 are orthorhombic (space group Pbcn) and are shown to be related to the structure of Sr(BH4)2 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. |
| first_indexed | 2025-11-14T05:55:41Z |
| format | Journal Article |
| id | curtin-20.500.11937-2879 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T05:55:41Z |
| publishDate | 2015 |
| publisher | Royal Society of Chemistry |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-28792023-08-02T06:46:24Z Crystal structure and in situ decomposition of Eu(BH4)2 and Sm(BH4)2 Humphries, Terry Ley, M. Frommen, C. Munroe, K. Jensen, T. Hauback, B. Synthesis of halide free rare earth metal (RE) borohydride complexes is demonstrated by the metathesis reaction of trivalent RE metal chlorides and LiBH4 in ethereal solution, combined with solvent extraction using dimethyl sulfide. The crystal structures of Eu(BH4)2 and Sm(BH4)2 are orthorhombic (space group Pbcn) and are shown to be related to the structure of Sr(BH4)2 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. 2015 Journal Article http://hdl.handle.net/20.500.11937/2879 10.1039/c4ta04080e Royal Society of Chemistry restricted |
| spellingShingle | Humphries, Terry Ley, M. Frommen, C. Munroe, K. Jensen, T. Hauback, B. Crystal structure and in situ decomposition of Eu(BH4)2 and Sm(BH4)2 |
| title | Crystal structure and in situ decomposition of Eu(BH4)2 and Sm(BH4)2 |
| title_full | Crystal structure and in situ decomposition of Eu(BH4)2 and Sm(BH4)2 |
| title_fullStr | Crystal structure and in situ decomposition of Eu(BH4)2 and Sm(BH4)2 |
| title_full_unstemmed | Crystal structure and in situ decomposition of Eu(BH4)2 and Sm(BH4)2 |
| title_short | Crystal structure and in situ decomposition of Eu(BH4)2 and Sm(BH4)2 |
| title_sort | crystal structure and in situ decomposition of eu(bh4)2 and sm(bh4)2 |
| url | http://hdl.handle.net/20.500.11937/2879 |