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. Author manuscript; available in PMC: 2015 Nov 3.
Published in final edited form as: J Chem Theory Comput. 2014 Mar 11;10(3):1150–1163. doi: 10.1021/ct400988e

Table 2.

Lennard-Jones and FQ parameters for the SPC-FQ2 and TIP3P-FQ2 water models.

SPC-FQ2 TIP3P-FQ2
ΔE Elec. (kJ/mol) ΔE LJ. (kJ/mol) ΔE Elec. (kJ/mol) ΔE LJ. (kJ/mol)
RC = 4.0 Å 1.85 20.92 3.49 3.69
RC = 7.0 Å 1.98 19.90 3.79 3.35
RC = 10.0 Å 1.98 19.70 3.92 3.29
RC = 13.0 Å 2.03 19.65 3.97 3.27

Average differences between the actual potential energies (electrostatic and Lennard Jones) calculated along the FQ trajectories (δt=1.0 fs) and those that would have been obtained with a fixed charge model on the same coordinates (see Table 1), obtained using increasing cut-off radii (RC)