data_Eu2Ta2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.59
_cell_length_b   13.59
_cell_length_c   5.61
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   163.41
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Eu2Ta2O7
_chemical_formula_sum   'Eu4 Ta4 O14'
_cell_volume   296.04
_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
  Eu  Eu0  1  0.96  0.53  0.21  1.0
  Eu  Eu1  1  0.96  0.19  0.4  1.0
  Eu  Eu2  1  0.96  0.81  0.21  1.0
  Eu  Eu3  1  0.96  0.47  0.4  1.0
  Ta  Ta18  1  0.96  0.97  0.4  1.0
  Ta  Ta19  1  0.96  0.11  0.21  1.0
  Ta  Ta20  1  0.96  0.89  0.4  1.0
  Ta  Ta21  1  0.96  0.03  0.21  1.0
  O  O4  1  0.0  0.0  0.0  1.0
  O  O5  1  0.0  0.0  0.81  1.0
  O  O6  1  0.96  0.77  0.4  1.0
  O  O7  1  0.96  0.77  0.53  1.0
  O  O8  1  0.96  0.77  0.88  1.0
  O  O9  1  0.96  0.97  0.21  1.0
  O  O10  1  0.96  0.81  0.58  1.0
  O  O11  1  0.96  0.81  0.84  1.0
  O  O12  1  0.96  0.19  0.77  1.0
  O  O13  1  0.96  0.19  0.04  1.0
  O  O14  1  0.96  0.03  0.4  1.0
  O  O15  1  0.96  0.23  0.73  1.0
  O  O16  1  0.96  0.23  0.08  1.0
  O  O17  1  0.96  0.23  0.21  1.0

data_Eu2Ta2O7
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.92
_cell_length_b   5.61
_cell_length_c   13.59
_cell_angle_alpha   90.0
_cell_angle_beta   98.3
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Eu2Ta2O7
_chemical_formula_sum   'Eu4 Ta4 O14'
_cell_volume   296.04
_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
  Eu  Eu0  1  0.19  0.6  0.23  1.0
  Eu  Eu1  1  0.47  0.6  0.5  1.0
  Eu  Eu2  1  0.53  0.79  0.57  1.0
  Eu  Eu3  1  0.81  0.79  0.85  1.0
  Ta  Ta4  1  0.03  0.79  0.07  1.0
  Ta  Ta5  1  0.11  0.79  0.15  1.0
  Ta  Ta6  1  0.89  0.6  0.93  1.0
  Ta  Ta7  1  0.97  0.6  0.01  1.0
  O  O8  1  0.0  0.0  0.0  1.0
  O  O9  1  0.0  0.19  0.0  1.0
  O  O10  1  0.03  0.6  0.07  1.0
  O  O11  1  0.19  0.23  0.23  1.0
  O  O12  1  0.19  0.96  0.23  1.0
  O  O13  1  0.23  0.27  0.27  1.0
  O  O14  1  0.23  0.92  0.27  1.0
  O  O15  1  0.23  0.79  0.27  1.0
  O  O16  1  0.77  0.6  0.81  1.0
  O  O17  1  0.77  0.12  0.81  1.0
  O  O18  1  0.77  0.47  0.81  1.0
  O  O19  1  0.81  0.16  0.85  1.0
  O  O20  1  0.81  0.42  0.85  1.0
  O  O21  1  0.97  0.79  0.01  1.0

Eu Eu Eu Eu Ta Ta Ta Ta O O O O O O O O O O O O O O