Affiliation: | 1. Laboratoire de chimie et biochimie computationelles Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland), Fax: (41)?21‐693‐0320;2. Present address: Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125 (USA);3. Laboratoire de spectroscopie ultrarapide Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland) |