The files 31P-1H3__SYT.states and 31P-1H3__SYT.trans form a complete PH3 line list
in the ExoMol format, full details of which can be found in "Data structures for
ExoMol: Molecular line lists for exoplanet and other atmospheres" - J. Tennyson,
C. Hill, S. N. Yurchenko, AIP Conference Proceedings 1545, 186 (2013),
http://dx.doi.org/10.1063/1.4815853.

The methods used to calculate these data are described in
C. Sousa-Silva et al., "High temperature partition functions and thermodynamic data for ammonia and phosphine", JQSRT 142, 66 (2014).

The file 31P-1H3__SYT.pf is the PH3 partition function, also in ExoMol format. See:
C. Sousa-Silva et al., "A Computed Room Temperature Line List for Phosphine", J. Mol. Spectrosc. 288, 28 (2013).

Field lengths in brackets, isolated brackets represent space length

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31P-1H3__SYT.states

levelID(12) (1) energy(12) (1) gns(6) (1) J(7) (2) totalSym(3) (2) K(3) (2)
rotSym(3) (2) l(3) (3) v1(3) (2) v2(3) (2) v3(3) (2) v4(3) l3(3) (2) l4(3) (3)
vibSym(3)

e.g.
          1  5214.061809      8       0    1    0    1    0       0    0    0    0    0    0       1

Energy levels in cm-1
For all symmetries (rotational, vibrational and total) 1=A1, 2=A2 and 3=E


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31P-1H3__SYT.trans

UpperEnergyID(12) LowerEnergyID(12) AbsorptionCoeff(10) Wavenumber(15)

e.g.
       26246        23017 1.5087e-22        0.000014
Intensities in cm/mol


ZPE  = 5214.061809 cm-1

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Clara Sousa-Silva, 2014