LASER FLASH PHOTOLYSIS OF BENZENE - 6. PHOTOLYSIS IN AQUEOUS SOLUTION.

Article abstract of DOI:10.1246/bcsj.56.389

Three transient absorption spectra in aqueous solution were observed by irradiation of benzene with an excimer laser (KrF, 248 nm or ArF, 193 nm). A short-lived absorption with a peak at 275 nm is assigned to the S//n implied by S//1 absorption. A long-lived absorption, which appears as a clear shoulder at 230 nm, stays longer than 500 ns and is not shortened by oxygen. This species is tentatively assigned to benzvalene, and the quantum yield is determined to be ca. 0. 1. Solvated electron with a peak at 720 nm was formed via multiphoton process at a power level of 60 mJ/cm**2 of an ArF laser.