1. Laboratorio de Estudios Cristalográficos Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR) Avenida de las Palmeras 4 Armilla 18100 Granada Spain
2. Institute of Physical and Theoretical Chemistry University of Regensburg 93053 Regensburg Germany
3. Material Physics BASF SE, RAA/OS–B007 Carl-Bosch-Strasse 38 67056 Ludwigshafen am Rhein Germany