Laser flash photolysis of 3-phenylcyclopent-2-enone: absorption spectrum and reactivity of its triplet excited state
Abstract
The triplet state of 3-phenylcyclopent-2-enone, formed upon pulsed laser excitation (308 nm; 15 ns pulse duration) in either cyclohexane or ethanol solution, is relatively long-lived at room temperature and is rapidly quenched by oxygen, piperylene, alkenes, and by its own ground state.