1. Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes1, Inorganic Materials: Soft Chemistry and Reactivity of Solids, Campus de Beaulieu, F-35042 Rennes, France, Institut Laue-Langevin, BP 156 X, F-38042 Grenoble Cedex, France, Department of Inorganic, Physical and Materials Chemistry and NIS Center of Excellence, and INSTM “Centro di Riferimento”, University of Turin, Italy, European Laboratory for Non-Linear Spectroscopy, University of Florence, Polo Scientifico, I-50019 Sesto-Fiorentin,...