Rotationally resolved A~2II_u -X~2II_g electronic transition of NC_6N~+

摘要

The rotationally resolved A~2II_u<-X~2II_g electronic origin band spectrum of dicyanodiacetylene cation, NC_6N~+, has been recorded in the gas phase using frequency-production double modulation spectroscopy in a liquid nitrogen cooled hollow cathode discharge and cavity ring down spectroscopy in a supersonic plasma. The analysis of the complementary results provides accurate molecular parameters for the two spin-orbit components in both electronic states.