From: JC Gumbart (gumbart_at_ks.uiuc.edu)
Date: Sat Jun 29 2013 - 07:55:40 CDT

I'd like to know too! If you write some code for these functions, let us know.

In all seriousness, it just hasn't been a priority, as they aren't nearly as important or prevalent as the other terms in the force field.

On Jun 28, 2013, at 11:52 AM, Darre Castell, Leonardo wrote:

> Hi, this is probably a naive question, but I'd like to know how to parametrize Urey-Bradley and Improper Torsions using ffTK tool?
>
> Thanks a lot in advance.
> Leonardo