AMBER: Calcium and Magnesium LJ parameters

From: Daniel Smith <das92.pitt.edu>
Date: Mon, 09 Jun 2008 19:02:28 -0400

Hello,

Where do the Lennard-Jones parameters in GAFF/ff99 come from?
Specifically, I am curious as to:

1. Should I run Quantum Chemistry simulations to get accurate LJ parameters?

2. Would changing the LJ parameters to values derived in QM simulations
destroy the self-consistency of the force fields?

Thanks,
Daniel Smith

Department of Mathematics
University of Pittsburgh
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Received on Wed Jun 11 2008 - 06:07:35 PDT
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