RESONANT 2-PHOTON IONIZATION PROCESSES OF VAN-DER-WAALS ADDUCTS - SPECTROSCOPY AND REACTIVITY OF STYRENES CLUSTERED WITH VARIOUS MOLECULES

Research on the formation and properties of clusters of aromatic molec ules bonded to numerous solvents is rapidly expanding. Recently much a ttention has been paid to these adduct species with the objective of c larifying nucleation phenomena. Photophysical and photochemical studie s of these clusters give information on solvent effects, intracluster reactions and charge-transfer processes. Model calculations of potenti al surfaces of vdW adducts have provided knowledge of the intracluster binding energy and vdW vibrational modes in a few systems. Here, data are reported on resonant two-photon ionization R2PI mass spectra and on spectroscopic shifts of styrenes clustered with various atoms and m olecules.