problem regarding charmm parameter file of carbon nano tube

From: kanchi subbarao rao (
Date: Sun Nov 20 2011 - 16:43:01 CST

   hi ,
     I am doing graaphine and lipid bilayer simulation in namd by using
charmm force field.
    I used the parameter file .which is used in carbon nano tube
tutorial.But while in minimization I am getting non-bonding interaction
energy dominating (VDW and BOUND) ,it makes total energy positive.I found
no bad contact in my structure. could you suggest me the parameters of
carbon (cnt) which you changed in your parameter file in charmm force

subbarao kachi

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