data_EuMg2H5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.55
_cell_length_b   3.55
_cell_length_c   7.85
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   EuMg2H5
_chemical_formula_sum   'Eu1 Mg2 H5'
_cell_volume   98.99
_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
  Eu  Eu0  1  0.78  0.78  0.0  1.0
  Mg  Mg6  1  0.0  0.0  0.3  1.0
  Mg  Mg7  1  0.0  0.0  0.56  1.0
  H  H1  1  0.0  0.0  0.0  1.0
  H  H2  1  0.78  0.0  0.67  1.0
  H  H3  1  0.0  0.78  0.67  1.0
  H  H4  1  0.78  0.0  0.18  1.0
  H  H5  1  0.0  0.78  0.18  1.0

data_EuMg2H5
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.02
_cell_length_b   5.02
_cell_length_c   7.85
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   EuMg2H5
_chemical_formula_sum   'Eu2 Mg4 H10'
_cell_volume   197.98
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Eu  Eu0  2  0.28  0.5  0.0  1.0
  Mg  Mg1  2  0.0  0.0  0.3  1.0
  Mg  Mg2  2  0.0  0.0  0.56  1.0
  H  H3  4  0.39  0.39  0.18  1.0
  H  H4  4  0.39  0.39  0.67  1.0
  H  H5  2  0.0  0.0  0.0  1.0

Eu Mg Mg H H H H H