Si sc ThreeBodyCluster_KP_KaxirasPandey_1988_Si__MO_072486242437_000 2.6777900010347357 Optimization terminated successfully. Current function value: -4.077858 Iterations: 70 Function evaluations: 185 C11 = 216.615299 +/- 0.007336 GPa C12 = 78.222889 +/- 0.005187 GPa C44 = 39.078221 +/- 0.001834 GPa B = 124.353693 +/- 0.004235 GPa