public static OBMol contingencyminimization(OBMol mol)
        {
            OBForceField uff = OBForceField.FindForceField("UFF");

            //uff.ParseParamFile();
            uff.SetLogLevel(1);
            uff.Setup(mol);
            uff.ConjugateGradients(10);
            return(mol);
        }