Affiliation: | 1. Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48, Vassileos Constantinou Avenue, Athens 116 35, Greece;2. Institute of Materials Science, NCSR, Demokritos, Athens 153 10, Greece;3. Department of Inorganic Chemistry, Faculty of Chemistry, University of Athens, Panepistimioupoli Zografou, Athens 157 71, Greece |