[gmx-users] entangled polymer chain

[unipa]

hi,
i wold know how in this file what does means the element in the III and 
IV colums?

ffoplsaa.rtp:

; Polyethylene - this is an internal residue
[ Eth ]
   [ atoms ]
     C1    opls_136    -0.120    1
     H11   opls_140     0.060    1
     H12   opls_140     0.060    1
     C2    opls_136    -0.120    2
     H21   opls_140     0.060    2
     H22   opls_140     0.060    2

where i have to save this file?



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