1. Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc 20, B-7000 Mons, Belgium
2. Departamento de Química Física, Universidad de Alicante, E-03080 Alicante, Spain
3. Dipartimento di Chimica Industriale “Toso Montanari”, Università di Bologna, I-40136 Bologna, Italy
4. Institut des Sciences Moléculaires, UMR 5255, University of Bordeaux, F- 33405 Talence, France
5. Institut Néel,
CNRS and Grenoble Alpes University, F-38042 Grenoble, France