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. 2019 Nov 26;8(12):590. doi: 10.3390/antiox8120590

Table 2.

Ionization potentials (IPs) and proton dissociation enthalpies (PDEs) of puerarin and daidzein in gas phase and different solvents.

Sites IP (kcal/mol) PDE (kcal/mol)
Gas Benzene Water Gas Benzene Water
puerarin 179.9 154.7 113.3
4′-OH 220.8 29.8 17.6
7-OH 230.5 39.7 26.1
daidzein 178.9 153.9 113.4
4′-OH 213.0 21.9 9.1
7-OH 217.4 27.0 15.8