of self-consistency we recommend using the partition function given by Yadin [[*et al*]{}]{}[@jt529].

CaH
---

The ExoMol CaH line list only considers transitions within the X $^2\Sigma^+$ ground electronic state [@jt529]. A line list containing E $^2\Pi$ – X $^2\Sigma^+$ transitions has been given by Li [*et al*]{} [@11LiHaRa.cah]. Both line lists are included in the ExoMol database.

SiO
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The original SiO ExoMol line lists of Barton [[*et al*]{}]{} [@jt563] computed using [Level]{} have been truncated by removing transitions with $\Delta v \geq 6$.

HCN/HNC
-------

The combined HCN/HNC ExoMol line list of Barber [[*et al*]{}]{} [@jt570] used a calculated energy separation (isomerization energy) of 5705 [cm$^{-1}$]{}between the ground states of HCN and HNC. Recent work by Nguyen [[*et al*]{}]{}[@15NgBaRu.HCN] suggests that this value is too high. We have done some additional [*ab initio*]{} calculation using [MOLPRO]{} [@12WeKnKn.methods] at multi-reference configuration interaction (MRCI) level of theory. The complete basis set extrapolation (CBS) value CBS\[56\]z was found to equal 5398.62 [cm$^{-1}$]{}. Subtracting from this value the zero point energy difference between HCN and HNC wells of 88 [cm$^{-1}$]{}, gives the value for the energy separation of 5310 [cm$^{-1}$]{}, closer to the value of 5236 $\pm$ 50 [cm$^{-1}$]{} recommended by Nguyen 