Interpreting of XPS C1s binding energies in silicon containing polymers and nanoparticles

method for predicting XPS C1s binding energies in polymers has been developed previously [1]. The calculation uses partial atomic charges determined quantum chemically (by the semi-empirical AMI Method), which are found to provide a linear correlation with the binding energies corrected by the so-called Madelung intramolecular potential. We used this method successfully for interpreting XPS spectra of partially degraded fluoropolyiners [2]. In the current contribution we investigate the possibility of developing a similar equation to describe siliconcontaining polymers that are medically and technologically important, and also some nanoparticles based on organo-silicon compounds.