Infrared spectroscopy of precursor clusters for nucleophilic substitution reactions: fluorobenzene-(CH3OH)n (n = 1 and 2)

Infrared spectra of fluorobenzene-(CH3OH)n (n = 1 and 2) clusters in their ground state were observed in the OH and CH stretching vibrational region. The sizes and structures of the clusters were examined. As a result, the size dependence of the intracluster nucleophilic substitution reactions accompanied with ionization were confirmed. We also found the isomer dependence of the reactivity in fluorobenzene-(CH3OH)2. The OH stretching vibrations in the electronic exicted state (S1) were also observed. No significant structural change in the electronic excitation was confirmed.