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Time Scales of the Quasitetrahedral Motion in KMnO4 Observed by O-17 Central-Transition NMR Spectroscopy

Title data

Beerwerth, Joachim ; Bojer, Beate ; Senker, Jürgen ; Böhmer, Roland:
Time Scales of the Quasitetrahedral Motion in KMnO4 Observed by O-17 Central-Transition NMR Spectroscopy.
In: The Journal of Physical Chemistry C. Vol. 124 (July 2020) Issue 29 . - pp. 16202-16208.
ISSN 1932-7455
DOI: https://doi.org/10.1021/acs.jpcc.0c04704

Abstract in another language

Oxygen-17 spin relaxation and stimulated-echo experiments are carried out to study temperature-dependent reorientational time scales in potassium permanganate. From an analysis of the present data, an energy barrier of 0.35 eV is found. This activation energy is much larger than the one reported previously (Jakobsen et al. Quantitative Dynamics and Structure for Crystalline Cs2WO4 and KMnO4 Determined from High-Field O-17 Variable-Temperature MAS NMR Experiments, J. Phys. Chem. C 2014, 118, 20639-20646), but it is on the order of magnitude expected from observations for the dynamics of other tetraoxoanions in ionic crystals. The various contributions to the measured spin relaxation times and details regarding the two-time correlation functions for KMnO4 are discussed.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: ISI:000555507000058
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry III
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry III > Chair Inorganic Chemistry III - Univ.-Prof. Dr. Jürgen Senker
Result of work at the UBT: Yes
DDC Subjects: 500 Science
500 Science > 540 Chemistry
Date Deposited: 17 Mar 2021 07:58
Last Modified: 17 Mar 2021 07:59
URI: https://eref.uni-bayreuth.de/id/eprint/64016