Si sc ThreeBodyBondOrder_PPM_PurjaPunMishin_2017_Si__MO_566683736730_000 2.50075484812 Optimization terminated successfully. Current function value: -4.345084 Iterations: 71 Function evaluations: 189 C11 = 409.520152 +/- 0.007336 GPa C12 = 0.003060 +/- 0.005187 GPa C44 = 58.265328 +/- 0.001834 GPa B = 136.508757 +/- 0.004235 GPa