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. 2018 Feb 8;3(2):1653–1662. doi: 10.1021/acsomega.7b01895

Table 2. Parameters Shifting pKa Values from Water to Me2SO for the Second Data Set Consisting of Five Molecular Families as Depicted in Figure 4a.

    ΔpKa, eq 9, relative to water
No. molecular family based on ETM based on JPM
17 squaramides 4.60 4.50
14 thiourea-compounds 3.70 1.40
8 cyano-compounds 6.40 6.00
23 keto-compounds 6.30 6.20
14 BINOL-compounds 2.40 2.60
a

The first column gives the number of compounds considered for the corresponding molecular family. The last two columns contain the values of the pKa shift parameter ΔpKa. They convert the pKa values from water to Me2SO according to eq 9. In this application, the shift parameters are determined by converting the measured pKa values in Me2SO to the corresponding values in water. The third column contains the values of ΔpKa obtained by using the pKa values in water that were computed with the electrostatic transform method (ETM), whereas in the last column ΔpKa are obtained using the pKa values in water computed with the Jaguar pKa prediction method (JPM).