  The ExoMol database currently provides comprehensive line lists for modelling
the spectroscopic properties of molecules in hot atmospheres. Extending the
spectral range of the data provided to ultraviolet (UV) wavelengths brings into
play three processes not currently accounted for in the ExoMol data structure,
namely photodissociation, which is an important chemical process in its own
right,the opacity contribution due to continuum absorption and predissociation
which can lead to significant and observable line broadening effects. Data
structures are proposed which will allow these processes to be correctly
captured and the (strong) temperature-dependent effects predicted for UV
molecular photoabsorption in general and photodissociation in particular to be
represented.
