Ru diamond LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 6.493325933814049 Optimization terminated successfully. Current function value: -48.762090 Iterations: 88 Function evaluations: 236 C11 = -3251423.136081 +/- 0.007336 GPa C12 = 136.395189 +/- 0.005187 GPa C44 = -1219258.590366 +/- 0.001834 GPa B = -1083716.781901 +/- 0.004235 GPa