Na diamond Morse_Shifted_GirifalcoWeizer_1959MedCutoff_Na__MO_636041334617_003 7.478559851646424
Optimization terminated successfully.
         Current function value: -5.567829
         Iterations: 89
         Function evaluations: 237

C11 = -356251.502567 +/-     0.007336 GPa
C12 =     4.903584 +/-     0.005187 GPa
C44 = -133593.331603 +/-     0.001834 GPa
B   = -118747.231800 +/-     0.004235 GPa