data_ErCu(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.0
_cell_length_b   5.8
_cell_length_c   10.83
_cell_angle_alpha   90.0
_cell_angle_beta   113.49
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ErCu(WO4)2
_chemical_formula_sum   'Er2 Cu2 W4 O16'
_cell_volume   287.79
_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
  Er  Er2  1  0.26  0.04  0.45  1.0
  Er  Er3  1  0.42  0.76  0.48  1.0
  Cu  Cu0  1  0.92  0.18  0.48  1.0
  Cu  Cu1  1  0.76  0.61  0.45  1.0
  W  W20  1  0.42  0.05  0.78  1.0
  W  W21  1  0.1  0.05  0.12  1.0
  W  W22  1  0.58  0.74  0.81  1.0
  W  W23  1  0.26  0.74  0.16  1.0
  O  O4  1  0.1  0.33  0.81  1.0
  O  O5  1  0.35  0.14  1.0  1.0
  O  O6  1  0.14  0.18  0.56  1.0
  O  O7  1  0.76  0.19  0.88  1.0
  O  O8  1  0.08  0.19  0.08  1.0
  O  O9  1  0.39  0.18  0.34  1.0
  O  O10  1  0.18  0.14  0.9  1.0
  O  O11  1  0.74  0.33  0.16  1.0
  O  O12  1  0.94  0.47  0.78  1.0
  O  O13  1  0.51  0.66  0.03  1.0
  O  O14  1  0.3  0.62  0.59  1.0
  O  O15  1  0.6  0.61  0.85  1.0
  O  O16  1  0.92  0.61  0.05  1.0
  O  O17  1  0.54  0.62  0.38  1.0
  O  O18  1  0.33  0.66  0.94  1.0
  O  O19  1  0.58  0.47  0.12  1.0

data_ErCu(WO4)2
_symmetry_space_group_name_H-M   P-1
_cell_length_a   5.0
_cell_length_b   5.8
_cell_length_c   9.96
_cell_angle_alpha   90.0
_cell_angle_beta   93.92
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   ErCu(WO4)2
_chemical_formula_sum   'Er2 Cu2 W4 O16'
_cell_volume   287.79
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  Er  Er0  2  0.44  0.86  0.52  1.0
  Cu  Cu1  2  0.06  0.71  0.48  1.0
  W  W2  2  0.27  0.84  0.19  1.0
  W  W3  2  0.4  0.16  0.16  1.0
  O  O4  2  0.03  0.24  0.03  1.0
  O  O5  2  0.09  0.43  0.84  1.0
  O  O6  2  0.1  0.24  0.94  1.0
  O  O7  2  0.21  0.72  0.41  1.0
  O  O8  2  0.21  0.57  0.81  1.0
  O  O9  2  0.33  0.28  0.38  1.0
  O  O10  2  0.38  0.29  0.12  1.0
  O  O11  2  0.49  0.29  0.92  1.0

Er Er Cu Cu W W W W O O O O O O O O O O O O O O O O