The time evolution of electronically excited vitamin B12 (cyanocobalamin) has been observed for the first time in the gas phase. It reveals an ultrafast decay to a state corresponding to metal excitation. This decay is interpreted as resulting from a ring to metal electron transfer. This opens the observation of the excited state of other complex biomimetic systems in the gas phase, the key to the characterisation of their complex evolution through excited electronic states.
• Interaction laser-matière › Physico-Chimie et Chimie-Physique Physique et chimie pour le vivant et l’environnement › Physique et vivant / Physics and life
• Interactions, Dynamics and Lasers Laboratory (LIDYL) - CEA-CNRS and Paris Saclay University • Laboratoire Interactions, Dynamiques et Lasers (LIDYL) - CEA-CNRS et Université Paris Saclay • Service des Photons Atomes et Molécules • Service des Photons Atomes et Molécules
• Laboratoire Francis Perrin • LUMO-DyR - Reaction Dynamics Team • LUMO - Equipe Dynamique Réactionnelle (DyR) • Laboratoire Francis Perrin