Si diamond ThreeBodyCluster_Gong_Gong_1993_Si__MO_407755720412_000 5.430949777364731
Optimization terminated successfully.
         Current function value: -37.120000
         Iterations: 1064
         Function evaluations: 3171

C11 =   153.696762 +/-     0.007336 GPa
C12 =    85.930058 +/-     0.005187 GPa
C44 =    53.042994 +/-     0.001834 GPa
B   =   108.518959 +/-     0.004235 GPa