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In and F MAS NMR study of (NH4)3InF6 phases |
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| Authors: | G Scholz T Krahl C Martineau JY Buzaré E Kemnitz |
| Institution: | a Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Str. 2, D-12489 Berlin, Germany b Bundesanstalt für Materialprüfung und -forschung, Richard-Willstätter-Straße 11, D-12489 Berlin, Germany c Laboratoire de Physique de l’Etat Condensé (UMR CNRS 6087), Institut de Recherche en Ingénierie Moléculaire et Matériaux Fonctionnels (FR CNRS 2575), Université du Maine, Avenue O. Messiaen, 72085 Le Mans Cedex 9, France |
| Abstract: | This study presents for the first time an NMR spectroscopic characterization of the room and high temperature phases of (NH4)3InF6 using 19F and 115In as probe nuclei. The reversible phase transition to the cubic phase at 353 K was followed by MAS NMR in situ. Static NMR experiments of the room temperature phase and MAS NMR experiments of the high temperature phase allowed the determination of the NMR parameters of both nuclei. Finally, the scalar In-F coupling, rarely observed in solid state NMR, is evidenced in both room and high temperature phases of (NH4)3InF6, and measured in the high temperature phase. |
| Keywords: | (NH4)3InF6 115In and 19F solid state NMR XRD |
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