element=lattice type=modelname=Rb bcc Morse_Shifted_GirifalcoWeizer_1959LowCutoff_Rb__MO_754498969542_003 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -1.563389 Iterations: 33 Function evaluations: 68 {'basis_atoms': '[[0.0 0.0 0.0] [0.5 0.5 0.5]]', 'repeat': 0, 'cohesive_energy': 0.7816944835437291, 'space_group': 'Im-3m', 'element': 'Rb', 'lattice_constant': 5.791385769844055, 'wyckoff_code': '2a', 'crystal_structure': 'bcc', 'iterations': 33, 'warnflag': 0, 'species': 'Rb" "Rb', 'func_calls': 68}