1. Department of Inorganic, Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90 Panduri, 050663 Bucharest, Romania
2. Institute of Organic and Supramolecular Chemistry, Spl. Independentei 202B, 060023 Bucharest, Romania
3. Institute of Physical Chemistry, Spl. Independentei 202, 060023 Bucharest, Romania