Chih-Ying Lin wrote:

HI
g_chi is designed to help user to calculate the dihedral angles.

I have an organic compound and as the manual describes that .gro , .trr and ssdump.dat are the required input files to compute and collect the dihedral angles with time.


g_chi is for use with the peptide backbone, according to the documentation, so I don't know how applicable it necessarily is to your situation.

You might be better off using g_angle with an appropriate index group for the dihedral(s) of interest. I have had success using it with small organic molecules.

-Justin


For my case, .gro and .trr files are ready.
How to prepare for ssdump.dat?


Also, how do i tell gromacs the calculate the specific dihedral angles with time for me??
I did not fully understand the manual's description.

thank you

Lin


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Justin A. Lemkul
Graduate Research Assistant
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin

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