Argonne National Laboratory

Upcoming Events

Microsecond (us) Time-resolved XAS Measurement with the Energy Dispersive EXAFS (EDE) Setup and Ultrafast (ps) X-ray Scattering on Chemical Reactions of Small Molecules in Solution

XSD Special Presentation
Qingyu Kong, SOLEIL
April 23, 2013 1:30PM to 2:30PM
Building 433
The energy dispersive EXAFS (EDE) setup at ODE beamline Soleil Synchrotron as well as the recent development of microsecond (┬Ás) time-resolved XAFS data collection and its application to film continuously the electronic and geometric structural kinetics in a thermolysis reaction will be presented. The proposal of a laser pump and XAS probe development using EDE setup will be introduced briefly.

In the second part of the talk, the optical pump and X-ray probe setup and ultrafast solution scattering on small molecules studied in ID09B ESRF will be presented, the photofragmentation reaction of triruthenium dodecacarbonyl Ru3(CO)12 in cyclohexane will be used as an example to show the data analysis process and the complementary nature of ultrafast X-ray scattering and ultrafast spectroscopy in the determination of transient molecular structures and chemical reaction mechanisms.