O bcc Sim_LAMMPS_ReaxFF_StrachanVanDuinChakraborty_2003_CHNO__SM_107643900657_001 2.3237781524658203 Optimization terminated successfully. Current function value: -0.303266 Iterations: 1064 Function evaluations: 3176 C11 = 1084.957628 +/- 0.007336 GPa C12 = 879.773998 +/- 0.005187 GPa C44 = -30.467270 +/- 0.001834 GPa B = 948.168541 +/- 0.004235 GPa