1. Organic Chemistry, School of Chemical Science and Engineering, Royal Institute of Technology (KTH), 10044 Stockholm (Sweden), Fax: +(46) 8‐761‐2333
2. Inorganic Chemistry, School of Chemical Science and Engineering, Royal Institute of Technology (KTH), 10044 Stockholm (Sweden)
3. Department of Physical and Analytical Chemistry, Uppsala University, 75105 Uppsala (Sweden)
4. Molecular and Condensed Matter Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala (Sweden)