Carsten Baldauf wrote:
dear all//
i need to parameterize a non-natural amino acid residue.
i have a problem with assigning the charges, how should i scale them? i can obtain quantum chemical charges from AM1 to {HF,DFT}/6-31G* and further, but how to include (scaling, i now where to write them) them in the force field?

Have you read the original literature that describes the development of this force field? You should be doing something consistent with that.

Mark
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