[gmx-users] Why some dihedrals have multiple parameters

Hi friends I have been building a topology and I found that some dihedrals have multiple parameters. Can someone tell me why is that? I imagine they should be used when you need to account for multiple terms in a Fourier representation, but I'm about to write a report and I'm not quite sure now.

Re: [gmx-users] pdb2gmx gives topol.top without values for bonds angles and dihedrals.

Thank you very much Justin for your quick answer. Greetings -- View this message in context: http://gromacs.5086.x6.nabble.com/pdb2gmx-gives-topol-top-without-values-for-bonds-angles-and-dihedrals-tp5013521p5013524.html Sent from the GROMACS Users Forum mailing list archive at Nabble.com. -- Gro

[gmx-users] pdb2gmx gives topol.top without values for bonds angles and dihedrals.

into ffbonded.itp: I wonder if the problem is because this a standalone residue, (not forming part of a chain). Below you can see what th eTerminal shows when I type pdb2gmx -f sam.pdb If some one can tell me what I am doing wrong I am going to be very grateful. I wish you a merry christmas.