ISMO

Institut des Sciences Moléculaires d'Orsay


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Home > Research Teams > Molecular systems, Astrophysics and Environment

Molecular systems, Astrophysics and Environment

Our group focuses on the study of fundamental processes in chemical physics and is particularly involved in molecular and cluster physics. We are interested in the understanding of the energetic processing of isolated molecular systems, from the injection of energy to the relaxation through all processes in competition (radiative cooling, isomerization, ionization and fragmentation) as well as the intra- and inter-molecular energy flow following the excitation. Our experimental tools are lasers, synchrotron radiation, ion beams in order to cover a broad range of energy ranging from vibrational to highly excited electronic energies. Several experimental set-ups are developed and used to access the spectroscopy or the dynamics of the systems. Theoretical methods dealing with statistical thermodynamics, quantum chemistry, and vibrational dynamics are developed and used in order to model and understand the processes at work. Most of the research is driven by fundamental questions in molecular sciences raised by astrophysical observations from small bodies of our solar system to molecular clouds in the interstellar medium. The molecular systems are mostly based on carbon chemistry, including heteroatoms such as hydrogen and nitrogen, and range from small molecules up to nanograins of few tens of nanometers. Recently, our group has undertaken research in relation with societal issues and related to the presence of black carbon particles in the Earth atmosphere and to the production of solar fuels as a source of renewable energy.



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