1. Department of Physics “Ettore Pancini”, University of Naples Federico II, 80126 Naples, Italy
2. School of Natural and Environmental Science, Newcastle University, Bedson Building, NE1 7RU Newcastle upon Tyne, UK
3. Department of Chemistry, Ångström Laboratory, Uppsala University, P.O. Box 523, 751 20 Uppsala, Sweden
4. Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, USA
5. Department of Chemistry and Biochemistry, University of Mississippi, University, MS 38677, USA
6. Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
7. Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
8. Dyenamo AB, Teknikringen 38A, 114 28 Stockholm, Sweden
9. University Management and Management Council, Vice Chancellor, Uppsala University, Segerstedthuset, 752 37 Uppsala, Sweden