Extended Data Fig. 4: State characters.
From: Ultrafast electronic relaxation pathways of the molecular photoswitch quadricyclane

LIIC for all electronic states considered in the RMS(9)-CASPT2(2,6)/6-31 G* + D model, with approximate character labelled (color coded). Each state is labelled by its principal character (for example, 3py indicates a state of mostly HOMO → 3py character). DE indicates a doubly excited state, with the character of the orbital(s) excited into in parentheses.