Accuracy of PM7 and PM6-D3H4

         Small molecules calculated using PM6-ORG, PM6-D3H4X and PM7

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--- Statistical Comparison of Accuracy of PM6-ORG compared to other Methods in MOPAC ---

Average Unsigned Errors in sets of Molecules (All ref. data)

  PM6-ORG PM6 PM7 No.   PM6-ORG PM6 PM7 No

Standard Heats of Formation (kcal mol-1)

All elements (all data) 3.88 4.77 4.22 1690

Bond-lengths (Ångstroms)

All elements (all data) 0.018 0.020 0.020 492

Dipole Moments (Debye)

All elements (all data) 0.37 0.37 0.47 128 Ionization Potential (eV) All elements (all data) 0.55 0.48 0.47 216
 

--- All Non-Covalent Interactions ---

All Interactions Energies         Individual sets: S22 set       S66 set        L7 set     H2O Dimers    S12L set      X40 set        D3H4 Ionic        Repulsive interactions