  An accurate and comprehensive room temperature rotation-vibration transition
line list for phosphine (31PH3) is computed using a newly refined potential
energy surface and a previously constructed ab initio electric dipole moment
surface. Energy levels, Einstein A coefficients and transition intensities are
computed using these surfaces and a variational approach to the nuclear motion
problem as implemented in the program TROVE. A ro-vibrational spectrum is
computed, covering the wavenumber range 0 to 8000 cm-1. The resulting line
list, which is appropriate for temperatures up to 300 K, consists of a total of
137 million transitions between 5.6 million energy levels. Several of the band
centres are shifted to better match experimental transition frequencies. The
line list is compared to the most recent HITRAN database and other laboratorial
sources. Transition wavelengths and intensities are generally found to be in
good agreement with the existing experimental data, with particularly close
agreement for the rotational spectrum. An analysis of the comparison between
the theoretical data created and the existing experimental data is performed,
and suggestions for future improvements and assignments to the HITRAN database
are made.
