1. Departamento
de Química, Instituto Militar de Engenharia Praça General Tibúrcio, 80, 22290-270 Rio de Janeiro, Brazil
2. Department
of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409, United States
3. Institute
of Soil Research, University of Natural Resources and Life Sciences Vienna, Peter-Jordan-Straße 82, A-1190 Vienna, Austria
4. Institute
for Theoretical Chemistry, University of Vienna, Währingerstrasse
17, A-1090 Wien, Austria