Hello! Welcome to Clickff

We have all-in-one tools for Molecular Force Field.

Antechamber

An all-in-one tool to do molecular format conversion, atom type assignment and charge generation, etc.

Parmchk reads in molecular file and output the force field file with the missing parameters.

Prepgen generates the prep input file from an ac file. It will automatically generates one of the longest path as mainchain.