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Exposure of [MnIII6CrIII]3+ single-molecule magnets to soft X-rays: The effect of the counterions on radiation stability |
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| Authors: | Andreas Helmstedt Marc D Sacher Aaron Gryzia Alexander Harder Armin Brechling Norbert Müller Ulrich Heinzmann Veronika Hoeke Erich Krickemeyer Thorsten Glaser Samuel Bouvron Mikhail Fonin |
| Institution: | 1. Fakultät für Physik, Universität Bielefeld, Universitätsstraße 25, D-33615 Bielefeld, Germany;2. Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, D-33615 Bielefeld, Germany;3. Fachbereich Physik, Universität Konstanz, Universitätsstraße 10, D-78457 Konstanz, Germany |
| Abstract: | X-ray absorption spectroscopy studies of the MnIII6CrIII]3+ single-molecule magnet deposited as a microcrystalline layer on gold substrates are presented. The oxidation state of the manganese centers changes from MnIII to MnII due to irradiation with soft X-rays. The influence of the charge-neutralizing anions on the stability of MnIII6CrIII]3+ against soft X-ray exposure is investigated for the different anions tetraphenylborate (BPh4?), lactate (C3H5O3?) and perchlorate (ClO4?). The exposure dependence of the radiation-induced reduction process is compared for MnIII6CrIII]3+ with the three different anions. |
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