To generate the ∆G o acid, gas (AH) database, we took the SMILES strings of most acids from D2A-pKa and converted the 2D molecular graph representations into 3D conformers. We used molecular representations of anions based on deprotonating the neutral acids identified in the pK a datasets at their labeled acidity centers. We used a CREST conformer generation workflow followed by DLPNO-CCSD(T)/CBS(aug-cc-pVDZ/pVTZ)// ωB97x-3c calculations. Further QM details are presented in the Methods section. The distribution is centered around 320 kcal mol -1 to 340 kcal mol -1 .