ExoMol line lists – L: high-resolution line lists of H3+, H2D+, D2H+, and D3+

Abstract

ABSTRACT New MiZo line lists are presented for the D2H+ and D$_3^+$ isotopologues of H$_3^+$. These line lists plus the existing H$_3^+$ MiZATeP and the ST H2D+ line lists are updated using empirical energy levels generated using the marvel procedure for H$_3^+$, H2D+, and D2H+, 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 av ailable via www.exomol.com.