The structure described by EuTaO4 crystallizes in the monoclinic C2/c space group. Eu(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. Ta(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Eu(1) and two equivalent Ta(1) atoms to form a mixture of distorted corner and edge-sharing OEu2Ta2 tetrahedra. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Eu(1) and one Ta(1) atom. is represented by the CIF file [CIF]
data_EuTaO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.578
_cell_length_b   6.578
_cell_length_c   5.115
_cell_angle_alpha   69.613
_cell_angle_beta   69.613
_cell_angle_gamma   114.715
_symmetry_Int_Tables_number   1
_cell_volume   153.519
_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  0.631  0.369  0.750  1.0
  Eu  Eu1  1  0.369  0.631  0.250  1.0
  Ta  Ta2  1  0.101  0.899  0.750  1.0
  Ta  Ta3  1  0.899  0.101  0.250  1.0
  O  O4  1  0.794  0.733  0.206  1.0
  O  O5  1  0.267  0.206  0.294  1.0
  O  O6  1  0.206  0.267  0.794  1.0
  O  O7  1  0.733  0.794  0.706  1.0
  O  O8  1  0.365  0.945  0.835  1.0
  O  O9  1  0.055  0.635  0.665  1.0
  O  O10  1  0.635  0.055  0.165  1.0
  O  O11  1  0.945  0.365  0.335  1.0
[/CIF]
.
The structure described by EuTaO4 crystallizes in the monoclinic C2/c space group. Eu(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. Ta(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Eu(1) and two equivalent Ta(1) atoms to form a mixture of distorted corner and edge-sharing OEu2Ta2 tetrahedra. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Eu(1) and one Ta(1) atom. is represented by the CIF file [CIF]
data_EuTaO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.578
_cell_length_b   6.578
_cell_length_c   5.115
_cell_angle_alpha   69.613
_cell_angle_beta   69.613
_cell_angle_gamma   114.715
_symmetry_Int_Tables_number   1
_cell_volume   153.519
_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  0.631  0.369  0.750  1.0
  Eu  Eu1  1  0.369  0.631  0.250  1.0
  Ta  Ta2  1  0.101  0.899  0.750  1.0
  Ta  Ta3  1  0.899  0.101  0.250  1.0
  O  O4  1  0.794  0.733  0.206  1.0
  O  O5  1  0.267  0.206  0.294  1.0
  O  O6  1  0.206  0.267  0.794  1.0
  O  O7  1  0.733  0.794  0.706  1.0
  O  O8  1  0.365  0.945  0.835  1.0
  O  O9  1  0.055  0.635  0.665  1.0
  O  O10  1  0.635  0.055  0.165  1.0
  O  O11  1  0.945  0.365  0.335  1.0
[/CIF]
.