data_Na2YBe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.74
_cell_length_b   6.74
_cell_length_c   3.39
_cell_angle_alpha   103.79
_cell_angle_beta   103.79
_cell_angle_gamma   127.49
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2YBe
_chemical_formula_sum   'Na2 Y1 Be1'
_cell_volume   102.98
_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  Na1  1  0.58  0.02  0.43  1.0
  Na  Na2  1  0.58  0.98  0.43  1.0
  Y  Y3  1  0.98  0.0  0.0  1.0
  Be  Be0  1  0.0  0.0  0.0  1.0

data_Na2YBe
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.39
_cell_length_b   5.03
_cell_length_c   6.74
_cell_angle_alpha   111.37
_cell_angle_beta   103.79
_cell_angle_gamma   91.96
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2YBe
_chemical_formula_sum   'Na2 Y1 Be1'
_cell_volume   102.98
_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  0.4  0.98  0.56  1.0
  Na  Na1  1  0.45  0.02  0.6  1.0
  Y  Y2  1  0.0  0.0  0.98  1.0
  Be  Be3  1  0.0  0.0  0.0  1.0

Na Na Y Be