Spectroscopic detection of protonated N 2O

Abstract

The high-resolution infrared spectrum ofprotonated N 2O has been observed with a difference frequency laser system. Protonated N 2O is generated in a hollow cathode discharge through a mixture of N 2O (≈ 15 mTorr) and H 2, (≈ 250 mTorr). It is found to be a bent molecule similar to HN 3, but it is not clear from this spectroscopic observation which isomer, O-protonated or N-protonated, has been detected. The molecular constants have been obtained for the ground state. The band origin of the V 1 fundamental is 3330.91070 cm −1. Only the effective molecular constants have been given for the excited state due to a perturbation.