## Wikipedia - Alfa Brønsted relation

https://doi.org/10.1351/goldbook.B00746
The term applies to either of the equations: $\frac{k_{\text{HA}}}{p} = G\left ( \frac{q\ K_{\text{HA}}}{p} \right )^{\alpha}$ $\frac{k_{\text{A}}}{q} = G\left ( \frac{q\ K_{\text{HA}}}{p} \right )^{-\beta}$ (or their logarithmic forms) where $$\alpha$$, $$\beta$$ and $$G$$ are constants for a given reaction series ($$\alpha$$ and $$\beta$$ are called 'Brønsted exponents'), $$k_{\text{HA}}$$ and $$k_{\text{A}}$$ are @C00885@ (or rate coefficients) of reactions whose rates depend on the concentrations of HA and/or of A. $$K_{\text{HA}}$$ is the acid @D01801@ constant of the acid HA, $$p$$ is the number of equivalent acidic protons in the acid HA, and $$q$$ is the number of equivalent basic sites in its conjugate base A. The chosen values of $$p$$ and $$q$$ should always be specified. (The charge designations of H and A are only illustrative.) The Brønsted relation is often termed the 'Brønsted @C00875-1@' (or the '@C00875-2@'). Although justifiable on historical grounds, this name is not recommended, since Brønsted relations are known to apply to many uncatalysed and pseudo-catalysed reactions (such as simple @P04915@). The term 'pseudo-Brønsted relation' is sometimes used for reactions which involve @N04250@ instead of acid–base @C00874@. Various types of Brønsted parameters have been proposed such as $$\beta_{\text{lg}}$$, $$\beta_{\text{nuc}}$$, $$\beta_{\text{eq}}$$ for @L03493@, nucleophile and equilibrium constants, respectively.