Table 2.
Corrected solvation energies by ZPVE and by the total non-electrostatic terms of free base, cationic and hydrochloride species of tacrine in aqueous solution by using the B3LYP/6-311G* method.
| TACRINEa | |||
|---|---|---|---|
| Solvation energy (kJ/mol) | |||
| B3LYP/6-311G* methoda | |||
| Species | ΔGZPVE | ΔGne | ΔGc |
| Free base | −43.54 | 9.40 | −52.94 |
| Cationic (Form I) | −214.56 | 15.42 | −229.98 |
| Cationic (Form II) | −285.12 | 13.79 | −298.91 |
| Hydrochloride (Form I) | −116.98 | 15.51 | −132.49 |
| Hydrochloride (Form III)c | −146.10 | 15.92 | −162.02 |
| B3LYP/6-31G* method | |||
| Agents | Free base | Cationic | Hydrochloride |
| Amantadineb | −20.32 | −273.24 | −109.01 |
| Morphineb | −60.91 | −309.19 | −144.74 |
| Cocaineb | −71.26 | −255.24 | −138.14 |
| Scopolamineb | −75.47 | −310.34 | −122.74 |
| Heroinb | −88.67 | −323.14 | −161.94 |