data_Na3La
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.99
_cell_length_b   6.99
_cell_length_c   6.03
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   96.59
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na3La
_chemical_formula_sum   'Na6 La2'
_cell_volume   292.29
_cell_formula_units_Z   2
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  0.65  0.77  0.52  1.0
  Na  Na3  1  0.65  0.23  0.51  1.0
  Na  Na4  1  0.04  0.96  0.52  1.0
  Na  Na5  1  0.26  0.04  0.51  1.0
  Na  Na6  1  0.26  0.96  0.52  1.0
  Na  Na7  1  0.04  0.04  0.51  1.0
  La  La0  1  0.65  0.32  0.51  1.0
  La  La1  1  0.65  0.68  0.52  1.0

data_Na3La
_symmetry_space_group_name_H-M   P-1
_cell_length_a   6.03
_cell_length_b   6.99
_cell_length_c   6.99
_cell_angle_alpha   96.59
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   Na3La
_chemical_formula_sum   'Na6 La2'
_cell_volume   292.29
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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  2  0.49  0.11  0.04  1.0
  Na  Na1  2  0.49  0.5  0.23  1.0
  Na  Na2  2  0.49  0.89  0.04  1.0
  La  La3  2  0.49  0.5  0.32  1.0

Na Na Na Na Na Na La La
(Na)2LaNa crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two disodium molecules and two lanthanum;sodium molecules.