O fcc Sim_LAMMPS_ReaxFF_BrugnoliMiyataniAkaji_SiCeNaClHO_2023__SM_282799919035_000 6.462172776460648 Optimization terminated successfully. Current function value: -0.500023 Iterations: 90 Function evaluations: 246 C11 = 0.433576 +/- 0.007336 GPa C12 = 0.258223 +/- 0.005187 GPa C44 = 0.258236 +/- 0.001834 GPa B = 0.316674 +/- 0.004235 GPa