Si diamond ThreeBodyCluster_SRS_StephensonRadnySmith_1996_Si__MO_604248666067_000 5.4300043284893045 Optimization terminated successfully. Current function value: -42.155970 Iterations: 74 Function evaluations: 194 C11 = 111.181782 +/- 0.007336 GPa C12 = 65.032413 +/- 0.005187 GPa C44 = 18.913033 +/- 0.001834 GPa B = 80.415536 +/- 0.004235 GPa