data_Na2AlB
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.33
_cell_length_b   5.33
_cell_length_c   3.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   126.85
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2AlB
_chemical_formula_sum   'Na2 Al1 B1'
_cell_volume   70.75
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Na  Na2  1  0.19  0.38  0.56  1.0
  Na  Na3  1  0.19  0.62  0.56  1.0
  Al  Al0  1  0.38  0.0  0.0  1.0
  B  B1  1  0.0  0.0  0.0  1.0

data_Na2AlB
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.12
_cell_length_b   4.77
_cell_length_c   5.33
_cell_angle_alpha   116.58
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2AlB
_chemical_formula_sum   'Na2 Al1 B1'
_cell_volume   70.75
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Na  Na0  1  0.56  0.38  0.57  1.0
  Na  Na1  1  0.56  0.62  0.81  1.0
  Al  Al2  1  0.0  0.0  0.38  1.0
  B  B3  1  0.0  0.0  0.0  1.0

Na Na Al B