Structure of a beta-sheet model system in the gas phase: Analysis of the fingerprint region up to 10 mu m

In this communication we report on the conformational analysis of side-chains in the beta-sheet model system (Ac-Phe-OMe)(2) by applying IR/R2PI (infrared/resonant 2-photon ionisation) spectroscopy in the fingerprint region up to 10 mu m, where in order to get information in this spectral region an extension of our new high energy and narrow band-width nanosecond IR laser system is presented.