H fcc Sim_LAMMPS_ReaxFF_BrugnoliMiyataniAkaji_SiCeNaClHO_2023__SM_282799919035_000 2.428264260292053 Optimization terminated successfully. Current function value: -0.032714 Iterations: 73 Function evaluations: 189 C11 = 517.820135 +/- 0.007336 GPa C12 = 724.417583 +/- 0.005187 GPa C44 = -216.631978 +/- 0.001834 GPa B = 655.551767 +/- 0.004235 GPa