From: Saumik Sen (
Date: Wed Oct 21 2015 - 01:50:33 CDT


I was trying to generate force field parameters by using CGenFF and ffTK
tools. But the problem is that CGenFF showing some error with my molecule
and it is very complicated to build my molecule in MOLEFACTURE plug in of
VMD. The molecule contains a four membered carbon ring with two carbon
attached with two carbonyl group and rest two with two planner amine group.
Is there any way I can build force field parameters for this kind of

Any suggestions will be valuable and appreciated.


With Regards,
Saumik Sen