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Introduction
Available force fields
ForceField-GUI
What’s new in ForceField 2022
What’s new in ForceField 2021
What’s new in ForceField 2020
New features
Force field setup for AMS applications
Classical force fields
Atom typing behavior
UFF
Other forcefields
Input via the AMS system block
ForceField input example
Antechamber integration
ForceField Engine Options
Common options
Type
Non-bonded screening
Feedback
Bonds usage
Ewald summation
Disabling energy terms
Guessing or loading partial charges
GuessCharges
LoadCharges
Amber force field options
UFF options
APPLE&P force field options
Examples
Example: single point for aspirin with UFF
Example: partial charges and total charge
Example: load partial charges from another engine
Example: load atom types from a previous run
Example: using amber or tripos
Example: calculate some simple properties for water
Example: single point for ammonia with TRIPOS
Required citations
External programs and libraries
Parameter files
UFF parameters
User-modified force fields (expert option)
AMBER parameters
AMBER forcefield file
SCM forcefield file
APPLE&P parameters
Potential shapes
APPLE&P potential shapes
Periodic ForceField
References
Keywords
Links to manual entries
Summary of all keywords
ForceField
Documentation
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