Infrared spectroscopy and photochemistry of NCCN+ and CNCN+ trapped in solid neon.
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.
Jacox
Marilyn E
ME
Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8441, USA.
Thompson
Warren E
WE