data_[Al2Cr2H2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Al  1.6100  1.2500  0.6750
  Cr  1.6600  1.4000  0.9400
  H  2.2000  0.2500  0.0000
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [2.8625]
_cell_length_b [4.1527]
_cell_length_c [4.9953]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [AlCrH]
_chemical_formula_sum '[Al2 Cr2 H2]'
_cell_volume [59.3785]
_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
[
  Al  Al0  2  0.0000  0.9911  0.1700  1.0
  Cr  Cr1  2  0.0000  0.5061  0.5020  1.0
  H  H2  2  0.0000  0.6388  0.8363  1.0
]