data_[Y1Mg1Be1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Mg  1.3100  1.5000  0.8600
  Be  1.5700  1.0500  0.5900
]
_symmetry_space_group_name_H-M [P-6m2]
_cell_length_a [4.5988]
_cell_length_b [4.5988]
_cell_length_c [3.5057]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [187]
_chemical_formula_structural [YMgBe]
_chemical_formula_sum '[Y1 Mg1 Be1]'
_cell_volume [64.2077]
_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
[
  Y  Y0  1  0.0000  0.0000  0.5000  1
  Mg  Mg1  1  0.3333  0.6667  0.0000  1
  Be  Be2  1  0.6667  0.3333  0.0000  1
]