Si sc SW_ZhangXieHu_2014OptimizedSW1_Si__MO_800412945727_004 2.45594487339 Optimization terminated successfully. Current function value: -3.362654 Iterations: 73 Function evaluations: 194 C11 = 470.415882 +/- 0.007336 GPa C12 = 50.900395 +/- 0.005187 GPa C44 = 39.601791 +/- 0.001834 GPa B = 190.738890 +/- 0.004235 GPa