High resolution electron - Momentum resolved ion coincidence spectroscopy

When molecules are irradiated by x-rays complicated breakup reactions are initiated: inner shell excitation or ionization leads to a cascade of Auger decays resulting in multiple ionization and multiple bond breaks. During the last years high resolution electron - ion coincidence spectroscopy has developed into a standard tool to analyse molecular break-up reaction pathways. If ion pairs or the momenta of the fragment ions are also recorded, a very detailed analysis of the break-up reaction becomes possible. A manifold of interesting processes can be studied. Here we will discuss site specific fragmentation of CH₃F, F₃Si-CH₂-Si(CH₃)₃, F₃Si-CH₂-CH₂-Si(CH₃)₃ and Cl₃Si-Si(CH₃)₃ and electron transfer during the break up of CH₃F.