1. Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, USA
2. Department of Physical and Macromolecular Chemistry, Charles University, in Prague, Faculty of Science, Czech Republic
3. Departamento de Ciencias Exactas y Tecnología, Universidad de Guadalajara, Lagos de Moreno, Jalisco, Mexico
4. Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts, USA