Rn bcc LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 3.302064068615437 Optimization terminated successfully. Current function value: -0.342265 Iterations: 72 Function evaluations: 189 C11 = 10.803973 +/- 0.007336 GPa C12 = 13.191110 +/- 0.005187 GPa C44 = 13.205656 +/- 0.001834 GPa B = 12.395398 +/- 0.004235 GPa