N bcc Sim_LAMMPS_ReaxFF_StrachanVanDuinChakraborty_2003_CHNO__SM_107643900657_001 2.99807049036026 Optimization terminated successfully. Current function value: -0.698331 Iterations: 65 Function evaluations: 169 C11 = 177.171415 +/- 0.007336 GPa C12 = 149.509869 +/- 0.005187 GPa C44 = -32.823947 +/- 0.001834 GPa B = 158.730384 +/- 0.004235 GPa