Si fcc Sim_LAMMPS_ReaxFF_BrugnoliMiyataniAkaji_SiCeNaClHO_2023__SM_282799919035_000 4.0777609050273895 C11 = 7198.276880 +/- 0.007336 GPa C12 = 7214.110125 +/- 0.005187 GPa C44 = 191.327490 +/- 0.001834 GPa B = 7208.832377 +/- 0.004235 GPa