Hi everyone! Have anyone used the Lennard-Jones 9-6 potential for coarse-grained models? when I use it, I get a very different result from that is got from the same Lennard-Jones 9-6 potential formed a potential table,the latter's results are comparable to the experiments. when I use LJ-9-6 potential,the ITP file is as following: [ defaults ] ; nbfunc comb-rule gen-pairs fudgeLJ fudgeQQ 1 1 no 1.0 1.0 9
[ atomtypes ] ; name bond_type mass charge ptype sigma epsilon opls_001 Cx 6 78.0190 0 A 0.505 2.95; [ moleculetype ] ; Name nrexcl Phenyl 1 [ atoms ] ; nr type resnr resid atom cgnr charge mass 1 opls_001 1 Phenyl C1 1 0.000 78.0190 other files ,such as mdp file and top file ,are all the same as normal LJ-12-6 potential, are these correct if I want to use LJ-9-6 potential? Do I still need to change something? Thanks very much for your kindness!
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