1. IFM-Department of Chemistry, Linköping University, SE-581 83 Linköping, Sweden, Department of Chemistry, Bowdoin College, Brunswick, Maine 04011-8466, Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Science, Leninsky Prospect 31, 119991 Moscow, Russia, Chemistry Department of M. V. Lomonosov, Moscow State University, Leninskie Gori 1, 119992 Moscow, Russia, Department of Molecular Spectroscopy, Chemical Research Center of the Hungarian Academy of Sciences, P.O. Box 77, H-1525...