Inversion splitting in the ν2 fundamental band of 15NH2D and 15ND2H

This paper is concerned with an analysis of the high resolution spectra of the fundamental ν2 band of both 15NH2D and 15ND2H. Absorption spectra were recorded in the 690-1150 cm−1 region with a Fourier transform spectrometer. The assignment of the ν2 band transitions and a theoretical analysis of the vibration-inversion-rotation energy levels involved with these transitions were performed for both species. The first determination of the spectroscopic constants relevant to the symmetric and antisymmetric upper inversion substates of the fundamental ν2 band was carried out.