element: O lattice type: bcc modelname: Sim_LAMMPS_ReaxFF_ChenowethVanDuinGoddard_2008_CHO__SM_584143153761_000 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -0.037804 Iterations: 31 Function evaluations: 67 {'lattice_constant': 4.178285837173462, 'cohesive_energy': 0.018902165969701082, 'element': 'O', 'species': 'O" "O', 'crystal_structure': 'bcc', 'space_group': 'Im-3m', 'wyckoff_code': '2a', 'basis_atoms': '[[0.0 0.0 0.0] [0.5 0.5 0.5]]', 'iterations': 31, 'func_calls': 67, 'warnflag': 0, 'repeat': 0}