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SUMMARY:Is an efficient intermolecular energy transfer from vibrations to 
 electronic motion possible? - Professor Lorenz Cederbaum\, Universitat Hei
 delberg
DTSTART:20191127T141500Z
DTEND:20191127T151500Z
UID:TALK127261@talks.cam.ac.uk
CONTACT:Lisa Masters
DESCRIPTION:In this work we investigate the possibility of intermolecular 
 vibrational energy transfer to electronic motion. Energy transfer of all k
 inds is of central importance for chemical reactivity and has been widely 
 studied both experimentally and theoretically over many years including th
 e transfer between the two kinds of energies\, vibrational and electronic.
  The studies of the latter are\, however\, carried out in the framework of
  collisions where the collision complex formed and/or nonadiabatic couplin
 g give rise to the transfer. Here\, we concentrate on intermolecular vibra
 tional energy transfer to electronic motion in weakly bound molecules\, i.
 e.\, at internuclear distances at which they do not have a chemical bond a
 nd nonadiabatic coupling is negligible. We shall see that the transfer can
  be highly efficient.\nIf time is left\, intermolecular vibrational energy
  transfer between weakly bound molecules is also addressed. Here\, most of
  the studies were done for describing resonant vibrational energy\ntransfe
 r in the condensed phase. Very recently\, it has been noticed that if the 
 lifetime of the vibrationally excited molecule is much longer than that of
  its neighbor\, efficient non-resonant vibrational energy transfer can tak
 e place.\nL.S. Cederbaum\, PRL 121\, 223001 (2018) L.S. Cederbaum\, Mol. P
 hy. 117\, 1950 (2019)
LOCATION:Department of Chemistry\, Cambridge\, Unilever lecture theatre
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