The material described by SmTaO4 crystallizes in the monoclinic P2/c space group. Sm(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(2) is bonded in a 3-coordinate geometry to two equivalent Sm(1) and one Ta(1) atom. In the second O site, O(1) is bonded to two equivalent Sm(1) and two equivalent Ta(1) atoms to form a mixture of distorted edge and corner-sharing OSm2Ta2 tetrahedra. is represented by the CIF card [CIF]
data_SmTaO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.203
_cell_length_b   5.394
_cell_length_c   5.539
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   96.683
_symmetry_Int_Tables_number   1
_cell_volume   154.395
_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
  Sm  Sm0  1  0.000  0.750  0.765  1.0
  Sm  Sm1  1  0.000  0.250  0.235  1.0
  Ta  Ta2  1  0.500  0.250  0.691  1.0
  Ta  Ta3  1  0.500  0.750  0.309  1.0
  O  O4  1  0.728  0.010  0.561  1.0
  O  O5  1  0.272  0.490  0.561  1.0
  O  O6  1  0.272  0.990  0.439  1.0
  O  O7  1  0.728  0.510  0.439  1.0
  O  O8  1  0.255  0.606  0.088  1.0
  O  O9  1  0.745  0.894  0.088  1.0
  O  O10  1  0.745  0.394  0.912  1.0
  O  O11  1  0.255  0.106  0.912  1.0
[/CIF]
.
The material described by SmTaO4 crystallizes in the monoclinic P2/c space group. Sm(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(2) is bonded in a 3-coordinate geometry to two equivalent Sm(1) and one Ta(1) atom. In the second O site, O(1) is bonded to two equivalent Sm(1) and two equivalent Ta(1) atoms to form a mixture of distorted edge and corner-sharing OSm2Ta2 tetrahedra. is represented by the CIF card [CIF]
data_SmTaO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.203
_cell_length_b   5.394
_cell_length_c   5.539
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   96.683
_symmetry_Int_Tables_number   1
_cell_volume   154.395
_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
  Sm  Sm0  1  0.000  0.750  0.765  1.0
  Sm  Sm1  1  0.000  0.250  0.235  1.0
  Ta  Ta2  1  0.500  0.250  0.691  1.0
  Ta  Ta3  1  0.500  0.750  0.309  1.0
  O  O4  1  0.728  0.010  0.561  1.0
  O  O5  1  0.272  0.490  0.561  1.0
  O  O6  1  0.272  0.990  0.439  1.0
  O  O7  1  0.728  0.510  0.439  1.0
  O  O8  1  0.255  0.606  0.088  1.0
  O  O9  1  0.745  0.894  0.088  1.0
  O  O10  1  0.745  0.394  0.912  1.0
  O  O11  1  0.255  0.106  0.912  1.0
[/CIF]
.