Resonance fragmentation of organic molecules on a surface

Fragmentation of peptide molecules grazing an organic surface at velocities below the Bohr value is experimentally and theoretically studied. The process of fragmentation of the arginine (Arg) and arginine-2 (Arg—Arg) peptide molecules grazing at respective velocities of $1.95\cdot10^6$ and $1.44\cdot10^6$ cm/s the surface of a perfluorocompound is thoroughly analyzed. Calculations are made within the framework of the resonance fragmentation model previously proposed by the authors. The theoretical results obtained agree well with the experimental data.