1. Chemical Physics Department of Chemistry Lund University Box 124 22100 Lund Sweden
2. Department of Organic Chemistry Arrhenius Laboratory Stockholm University 106 91 Stockholm Sweden
3. Faculty of Chemistry Arrhenius Laboratory University of Wroclaw F. Joliot‐Curie Street 14 50‐383 Wroclaw Poland
4. Institute of Chemistry Arrhenius Laboratory University of Silesia Szkolna 9 40‐006 Katowice Poland