Line-mixing effect on NH3 line intensities

New Ab Initio Potential Energy Surfaces for NH3 Constructed from Explicitly Correlated Coupled-Cluster Methods

“…The hyperfine structure observed in the ground state and the v 2 bands due to the nitrogen quadrupole splitting were then analyzed in refs − . In addition, we can also mention some other studies where the transitions of the v 2 band were measuredrefs and − and references therein, while refs and − and references therein were devoted to the overtone of the inversion mode as well as to the v 4 band.…”

Line intensities and temperature-dependent line broadening coefficients of Q-branch transitions in the v2 band of ammonia near 10.4μm

“…Due to the small residual error of the Voigt fit (typically ~1% max), other lineshape functions were not considered. The current study was conducted below ambient pressure and therefore the absorbance lineshapes at higher pressures must be experimentally validated to check for line-mixing phenomena as observed in the same band [37,38]. Similarly, discrepancies due to collision narrowing effects for the temperature range investigated in this study (<600 K) were found to be negligible.…”