ACCURATE INTERMOLECULAR BINDING-ENERGIES OF 1-NAPHTHOL TO BENZENE ANDCYCLOHEXANE

Accurate dissociation energies were determined for gas-phase complexes between 1-naphthol and benzene, d(6)-benzene and cyclohexane, using t he stimulated emission pumping resonant two-photon ionization spectros copy technique in supersonic jets. The dissociation energies obtained for the electronic ground state are surprisingly large, being D-0 = 5. 07 +/- 0.07 kcal/mol for 1-naphthol . benzene, 5.08 +/- 0.06 kcal/mol for 1-naphthol . d(6)-benzene, and 6.92 +/- 0.03 kcal/mol for 1-naphth ol . cyclohexane, respectively. The dissociation energies scale well w ith the parallel molecular polarizabilities.