H fcc Sim_LAMMPS_ReaxFF_WeismillerVanDuinLee_2010_BHNO__SM_327381922729_001 2.617127783596516 Optimization terminated successfully. Current function value: -1.121123 Iterations: 76 Function evaluations: 198 C11 = 366.864083 +/- 0.007336 GPa C12 = 523.222208 +/- 0.005187 GPa C44 = -159.575060 +/- 0.001834 GPa B = 471.102833 +/- 0.004235 GPa