Förster cycle

https://doi.org/10.1351/goldbook.F02487
An indirect method of determination of
excited state
equilibria, such as pK*,a values, based on
ground state
thermodynamics and electronic transition energies. This cycle considers only the difference in molar
enthalpy
change (ΔΔH) of reaction of ground and excited states, neglecting the difference in molar
entropy
change of reaction of those states (ΔΔS).
Source:
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2243 [Terms] [Paper]