element=lattice type=modelname=Rn fcc LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -0.715915 Iterations: 31 Function evaluations: 64 {'basis_atoms': '[[0.0 0.0 0.0] [0.5 0.5 0.0] [0.5 0.0 0.5] [0.0 0.5 0.5]]', 'repeat': 0, 'cohesive_energy': 0.17897886519773587, 'space_group': 'Fm-3m', 'element': 'Rn', 'lattice_constant': 4.125791251659393, 'wyckoff_code': '4a', 'crystal_structure': 'fcc', 'iterations': 31, 'warnflag': 0, 'species': 'Rn" "Rn" "Rn" "Rn', 'func_calls': 64}