Table 5.

Rank of selected models

Model	Equation	R	s	Fcalc/Ftable	Q2	SPRESS
6	qC1, qC2, qC3, u, logP	0.976	0.144	15.920	0.651	0.390
3	qC1, qO10, qC5, qC7, logP	0.886	0.306	2.917	0.022	0.668
5	qC4, qC4a, qC10a, V	0.839	0.321	2.975	0.446	0.710
2	qC1, qC5, qC7, logP	0.827	0.332	2.698	0.139	0.630
1/4	qC2, qC4, qC8a	0.789	0.331	3.303	0.356	0.628

Notes: qCn, net atomic charge on atom C number n; logP, octanol/water partition coefficient; V, molecular volume; u, dipole moment.