## inverted region (for electron transfer)

https://doi.org/10.1351/goldbook.I03152
In plots relating rate constants to charges in standard Gibbs energy ($$\Delta G^{\,\unicode{x26ac}}$$) for @[email protected] a region may occur in which the rate constants decrease as the exergonicity of the reaction increases. This region is often referred to as the inverted region and its presence is predicted by the theory developed for @[email protected] for the case $$-\Delta G^{\,\unicode{x26ac}} > \lambda$$ in the @[email protected], $$\lambda$$ being the @[email protected] Note the similarity to the energy gap law for radiationless conversion of an @[email protected]
See:
normal region
Source:
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2249 [Terms] [Paper]