Si diamond ThreeBodyCluster_BH_BiswasHamann_1987_Si__MO_019616213550_000 5.43184483051 Warning: Maximum number of function evaluations has been exceeded. C11 = 204.363321 +/- 0.007336 GPa C12 = 151.737136 +/- 0.005187 GPa C44 = 45.008958 +/- 0.001834 GPa B = 169.279198 +/- 0.004235 GPa