Pulse radiolysis and e.s.r. evidence for the formation of an alkene radical cation in aqueous solution
Abstract
Direct pulse radiolysis evidence, complemented by e.s.r. experiments, establishes that the radical cation Me2C–ĊMe2(λmax.ca. 290 nm) is formed by acid-catalysed elimination of OH– from ·CMe2CMe2OH; the radical cation deprotonates to give ·CH2CMeCMe2 with k 3.9 × 105 s–1.