Photochemistry of 2-Butyne in Solid Xenon at 10 K

Article abstract of DOI:10.1021/j100376a013

The photochemistry of 2-butyne was studied by FTIR spectroscopy at 10 K in xenon matrices.The 2-butyne undergoes the following overall photochemical reactions: .The reactions are observed in xenon, but not in argon, when 2-butyne is excited between 200 and 230 nm for M/R = 1/50, 1/100, 1/200, and 1/300.We postulate the lowest triplet excited state of 2-butyne becomes accessible in this region by spin-orbit coupling due to the external heavy-atom effect of xenon, resulting in triplet-state photochemistry.