Measurement and assignment of the vibrationally resolved UV absorption spectrum of syn-methyl nitrite isolated in an argon matrix at 12 K

Zusammenfassung

A mixt. of the syn- and anti-isomers of Me nitrite was deposited into an Ar matrix at 12 K The anti-isomer was subsequently photolyzed by dye-laser excitation into the red tail of the origin line at 26252 cm-1. The origin of the remaining syn-isomer is found at 27361 +- 10 cm-1, and the 1st 5 bands are well fitted with an anharmonic oscillator model with n1=1086 +- 5 cm-1 and xe = 0.0180 +- 0.0003.