ExoMol line lists -- L: High-resolution line lists of H${}_3^{+}$, H${}_2$D${}^{+}$, D${}_2$H${}^{+}$ and D${}_3^{+}$

Abstract

New MiZo line lists are presented for the D${}_2$H${}^{+}$ and D${}_3^{+}$ isotopologues of H${}_3^{+}$. These line lists plus the existing H${}_3^{+}$ MiZATeP and the Sochi H${}_2$D${}^{+}$ line lists are updated using empirical energy levels generated using the MARVEL procedure for H${}_3^{+}$, H${}_2$D${}^{+}$ and D${}_2$H${}^{+}$, and effective Hamiltonian energies for D${}_3^{+}$ for which there is significantly less laboratory data available. These updates allow accurate frequencies for far infrared lines for these species to be predicted. Assignments of the energy levels of H${}_3^{+}$ and D${}_3^{+}$ are extended using a combination of high accuracy variational calculations and analysis of transition intensities. All line lists are made available via www.exomol.com.

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