Non-resonant two-photon photochemistry of a Barton ester, N-phenylacetyloxy-2-pyridinethione.
N-Acetyloxy-2-pyridinethiones, otherwise known as Barton esters, are a class of molecules that can be easily photolysed via single-photon excitation to facilitate the controlled release of carbon or oxygen-centred radicals. In the present work, we investigate the two-photon chemistry of a simple Barton ester, and show that this material can be photolysed via two-photon excitation, with a two-photon bleaching cross section value of 0.13 +/- 0.01 GM.
Schepp
Norman P
NP
Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada. nschepp@dal.ca
Green
Christopher J M
CJ
Cozens
Frances L
FL