Rb sc Morse_Shifted_GirifalcoWeizer_1959LowCutoff_Rb__MO_754498969542_002 4.692384772 Optimization terminated successfully. Current function value: -0.698735 Iterations: 71 Function evaluations: 190 C11 = 6.526206 +/- 0.007336 GPa C12 = -0.619439 +/- 0.005187 GPa C44 = -0.619415 +/- 0.001834 GPa B = 1.762443 +/- 0.004235 GPa