Fr bcc LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 5.72356536984 Optimization terminated successfully. Current function value: -5.969599 Iterations: 70 Function evaluations: 184 C11 = 36.184571 +/- 0.007336 GPa C12 = 44.179548 +/- 0.005187 GPa C44 = 44.228262 +/- 0.001834 GPa B = 41.514555 +/- 0.004235 GPa