Term widely used to indicate the negative
of the standard Gibbs energy change for outer-sphere electron transfer (ΔET.Go).
For photo-induced processes, this quantity can often be estimated from independently determined properties of the donor and acceptor species involved using the equation for the calculation of the @GT07388@.
PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 327 (https://doi.org/10.1351/pac200779030293)