Milne, C.Pham, V.-T.Gawelda, W.Nahhas, A. E.van der Veen, R. M.Johnson, S. L.Beaud, P.Ingold, G.Borca, C.Grolimund, D.Abela, R.Chergui, M.Bressler, Ch.2010-10-042010-10-042010-10-04201010.12693/APhysPolA.117.391https://infoscience.epfl.ch/handle/20.500.14299/54798WOS:000277950400027Understanding the initial steps during ultrafast molecular reactions involving large spin state changes is a vital goal in structural dynamics research. These involve knowledge of the geometric structure of the system. Ultrafast X-ray absorption spectroscopy with 50-100 picosecond time resolution establishes the geometric structure of the short-lived (tau = 0.6 ns) high spin state. Here we focus on time-resolved X-ray absorption studies with 160-200 fs temporal resolution to monitor the structural evolution in this spin-conversion process.Dynamicstext::journal::journal article::research article