Ru diamond LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 6.49332593381 Optimization terminated successfully. Current function value: -48.762090 Iterations: 74 Function evaluations: 188 C11 = -3735762.255278 +/- 0.007336 GPa C12 = 177.254830 +/- 0.005187 GPa C44 = -1400932.280172 +/- 0.001834 GPa B = -1245135.915206 +/- 0.004235 GPa