GFN-FF Manual
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The GFNFF AMS engine implements the GFN-FF force field by Spicher and
Grimme

**Table of Contents:**

* Overview

  * Atom typing

  * Parallelization

  * Minimal input

* Keywords

  * Summary of all keywords

* Required citations

* KF output files

  * Accessing KF files

  * Sections and variables on gfnff.rkf
