Subject: where to find the force field parameters for F and P atom?

From: "" <yxiong~at~mail.ccnu.edu.cn>
Date: Wed, 10 Dec 2003 10:04:01 +0800

Dear sir,
  I want to do a MD calculation with the system including F and P atom. However I
can't find these relevant parameters in AMBER or CHARMM force field parameters. If
you can give me some suggestions or clues on where I can find them, I will be very
appreciated your help!