element: O lattice type: fcc modelname: Sim_LAMMPS_ReaxFF_ManzanoMoeiniMarinelli_2012_CaSiOH__SM_714124634215_000 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -0.062643 Iterations: 34 Function evaluations: 71 {'lattice_constant': 6.481930673122406, 'cohesive_energy': 0.01566085412795605, 'element': 'O', 'species': 'O" "O" "O" "O', 'crystal_structure': 'fcc', 'space_group': 'Fm-3m', 'wyckoff_code': '4a', '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]]', 'iterations': 34, 'func_calls': 71, 'warnflag': 0, 'repeat': 0}