Si diamond MFF_MistriotisFlytzanisFarantos_1989_Si__MO_080526771943_001 5.42940193415 Warning: Maximum number of function evaluations has been exceeded. C11 = 246.171804 +/- 0.007336 GPa C12 = 39.198836 +/- 0.005187 GPa C44 = 111.861033 +/- 0.001834 GPa B = 108.189826 +/- 0.004235 GPa