title: Solution phase isomerization of vibrationally excited singlet nitrenes to vibrationally excited 1,2-didehydroazepine.
abstract: Photolysis of phenyl and o-biphenylyl azide (at 270 nm) releases vibrationally excited singlet nitrene which isomerizes to the corresponding hot 1,2-didehydroazepine at a rate competitive with thermal relaxation. Using ultrafast vibrational spectroscopy we observe the formation of vibrationally excited 1,2-4,6-azacycloheptatetraene (1,2-didehydroazepine) in picoseconds following photolysis of phenyl azide in chloroform and o-biphenylyl azide in acetonitrile at ambient temperature.
authors.affiliation: Department of Chemistry, Ohio State University Center for Chemical and Biophysical Dynamics, 100 West 18th Avenue, Columbus, OH 43210, USA.
authors.forename: Gotard T
authors.initials: GT
authors.lastname: Burdzinski
authors.forename: Chris T
authors.initials: CT
authors.lastname: Middleton
authors.forename: Terry L
authors.initials: TL
authors.lastname: Gustafson
authors.forename: Matthew S
authors.initials: MS
authors.lastname: Platz