Force fields released by the Open Force Field Initiative.
copied from cf-staging / openff-forcefieldsThe provided OFFXML (force field) files are successive versions of a general-purpose small molecule force field, written in the SMIRNOFF format; this force field should cover all or almost all of drug-like chemical space, and illustrate some of the major functionality of the SMIRNOFF format as well as how it simplifies the specification of force field parameters in a compact and chemically sensible way.