O diamond Sim_LAMMPS_ReaxFF_AryanpourVanDuinKubicki_2010_FeHO__SM_222964216001_001 4.006885766983032 Optimization terminated successfully. Current function value: -11.779768 Iterations: 74 Function evaluations: 197 C11 = 593.123001 +/- 0.007336 GPa C12 = 129.447168 +/- 0.005187 GPa C44 = 195.956509 +/- 0.001834 GPa B = 284.005779 +/- 0.004235 GPa