Electronic spectroscopy of small toluene clusters

Small clusters of toluene(n) (n = 1-8) were created in a supersonic expansion of toluene with argon as a carrier gas. Mass-selected resonance enhanced multiphoton ionization spectra of these clusters were recorded for each n. For the dimer, the appearance of the spectrum under warm and very cold conditions was studied. We discuss previous results in the light of the present spectra. For n>2, the spectra resemble very closely that of the dimer.