1. Theoretical and Structural Chemistry GroupState University of GoiasAnapolis 75132-400 Brazil
2. Institute of PhysicsUniversity of BrasiliaBrasilia Brasilia 70919‐970 Brazil
3. Institute for Advanced StudiesUniversity of Cergy‐Pontoise1 rue Descartes Neuville‐sur‐Oise 95000 France
4. Department of Energy Conversion and StorageTechnical University of Denmark Anker Engelunds Vej 301 Kongens Lyngby 2800