Na diamond Morse_Shifted_GirifalcoWeizer_1959LowCutoff_Na__MO_707981543254_004 7.764330546557904
Optimization terminated successfully.
         Current function value: -4.890097
         Iterations: 68
         Function evaluations: 176

C11 = -289008.001522 +/-     0.007336 GPa
C12 =     4.107664 +/-     0.005187 GPa
C44 = -108377.416059 +/-     0.001834 GPa
B   = -96333.262065 +/-     0.004235 GPa