data_ZnH
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.69
_cell_length_b   2.69
_cell_length_c   6.59
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnH
_chemical_formula_sum   'Zn2 H2'
_cell_volume   41.36
_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
  Zn  Zn0  1  0.0  0.55  0.13  1.0
  Zn  Zn1  1  0.35  0.78  0.42  1.0
  H  H2  1  0.35  0.78  0.63  1.0
  H  H3  1  0.0  0.55  0.34  1.0

data_ZnH
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.69
_cell_length_b   2.69
_cell_length_c   6.59
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZnH
_chemical_formula_sum   'Zn2 H2'
_cell_volume   41.36
_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
  Zn  Zn0  1  -0.0  0.55  0.13  1.0
  Zn  Zn1  1  0.35  0.78  0.42  1.0
  H  H2  1  -0.0  0.55  0.34  1.0
  H  H3  1  0.35  0.78  0.63  1.0

Zn Zn H H