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Torsional terms and parameters that have been adjusted from the orginal CHARMM22 force field for use in connection with the present PIPF potential for amides.
| Dihedral type | Kϕ | n | δ |
|---|---|---|---|
| CT3-C-NH1- CT3 | 1.2 | 1 | 0 |
| CT3-CT1-NH1-C | 1.6 | 1 | 0 |
| HA-CT3-NH1-H | 0.11 | 3 | 0 |
| O-C-CT3-HA | 0.04 | 3 | 180 |
