element: B lattice type: bcc modelname: Sim_LAMMPS_ReaxFF_WeismillerVanDuinLee_2010_BHNO__SM_327381922729_001 Attempting to perform relaxation using initial lattice constant guess of 2.5 Angstroms Optimization terminated successfully. Current function value: -5.512884 Iterations: 28 Function evaluations: 59 {'lattice_constant': 2.7261006832122803, 'cohesive_energy': 2.756441849542757, 'element': 'B', 'species': 'B" "B', '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': 28, 'func_calls': 59, 'warnflag': 0, 'repeat': 0}