title: Infrared spectroscopy and photochemistry of NCCN+ and CNCN+ trapped in solid neon.
abstract: When a Ne:NCCN sample is codeposited at 4.3 K with neon atoms that have been excited in a microwave discharge, the infrared and near infrared spectra of the resulting deposit include a prominent peak at 1799.5 cm-1, previously assigned to nu3 of NCCN+, and several new absorptions at higher frequencies which are contributed by combination bands of ground-state NCCN+. The exposure of the deposit to near infrared and red light results in the appearance of two new absorptions which are attributed to CNCN+. The reverse isomerization occurs when the sample is exposed to near ultraviolet radiation, but the two new absorptions are regenerated upon subsequent irradiation with near infrared and red light.
authors.affiliation: Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8441, USA.
authors.forename: Marilyn E
authors.initials: ME
authors.lastname: Jacox
authors.forename: Warren E
authors.initials: WE
authors.lastname: Thompson