. Author manuscript; available in PMC: 2020 Jul 30.

Published in final edited form as: Chem Commun (Camb). 2020 Jul 28;56(60):8380–8383. doi: 10.1039/d0cc02952a

Table 1.

Experimental pK_a pK_a*, and ΔpK_a values

Compound	pK_a	pK_a*	ΔpK_a	Ref.
2-Naphthol	9.5	2.8	−6.7	15
2-Naphthylammonium	4.1	−0.8	−4.9	28
2-Naphthoic acid	4.2	11.5	+7.3	29
8-Cyano-2-naphthol	8.4	−0.8	−9.2	19
5,8-Dicyano-2-naphthol	7.8	−4.5	−12.3	19
Salicylamide	−2.6	−5.3	−2.7	35