New insights into molecular structure and dynamics using soft x-ray electron spectroscopy

The combination of high-resolution electron energy analyzers and 3rd genera tion synchrotron radiation sources opens up possibilities to study molecula r inner-shell photo- and Auger electron emission in a new level of detail. Even weak molecular perturbations of the energy levels and angular emission patterns can be studied. In this report, some examples of such studies are given based on recent experiments at the Advanced Light Source, using a Sc ienta SES-200 electron spectrometer. Examples of carbon Is photoemission of ethyne, sulphur 2p photoemission of carbonyl sulphide, and resonant Auger electron emission of carbon dioxide are presented.