Si diamond ThreeBodyBondOrder_WR_WangRockett_1991_Si__MO_081872846741_000 5.4304773733 Warning: Maximum number of function evaluations has been exceeded. C11 = 139.661810 +/- 0.007336 GPa C12 = 75.421699 +/- 0.005187 GPa C44 = 66.371051 +/- 0.001834 GPa B = 96.835069 +/- 0.004235 GPa