The structure described by Ta(PO4)2 crystallizes in the orthorhombic Pnma space group. Ta(1) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(5) atoms to form TaO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra and corners with three equivalent P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form PO4 tetrahedra that share corners with three equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-26°. In the second P site, P(2) is bonded to one O(4), one O(6), and two equivalent O(5) atoms to form PO4 tetrahedra that share corners with three equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 8-25°. There are six inequivalent O sites. In the first O site, O(5) is bonded in a bent 150 degrees geometry to one Ta(1) and one P(2) atom. In the second O site, O(6) is bonded in a single-bond geometry to one P(2) atom. In the third O site, O(1) is bonded in a bent 150 degrees geometry to one Ta(1) and one P(1) atom. In the fourth O site, O(2) is bonded in a linear geometry to one Ta(1) and one P(1) atom. In the fifth O site, O(3) is bonded in a single-bond geometry to one P(1) atom. In the sixth O site, O(4) is bonded in a linear geometry to one Ta(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ta(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.297
_cell_length_b   8.046
_cell_length_c   15.958
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   680.155
_cell_formula_units_Z   4
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
  Ta  Ta0  1  0.250  0.474  0.642  1.0
  Ta  Ta1  1  0.250  0.026  0.142  1.0
  Ta  Ta2  1  0.750  0.526  0.358  1.0
  Ta  Ta3  1  0.750  0.974  0.858  1.0
  P  P4  1  0.750  0.284  0.543  1.0
  P  P5  1  0.750  0.216  0.043  1.0
  P  P6  1  0.250  0.716  0.457  1.0
  P  P7  1  0.250  0.784  0.957  1.0
  P  P8  1  0.250  0.243  0.828  1.0
  P  P9  1  0.250  0.257  0.328  1.0
  P  P10  1  0.750  0.757  0.172  1.0
  P  P11  1  0.750  0.743  0.672  1.0
  O  O12  1  0.984  0.325  0.598  1.0
  O  O13  1  0.516  0.175  0.098  1.0
  O  O14  1  0.484  0.675  0.402  1.0
  O  O15  1  0.016  0.825  0.902  1.0
  O  O16  1  0.016  0.675  0.402  1.0
  O  O17  1  0.484  0.825  0.902  1.0
  O  O18  1  0.516  0.325  0.598  1.0
  O  O19  1  0.984  0.175  0.098  1.0
  O  O20  1  0.250  0.593  0.532  1.0
  O  O21  1  0.250  0.907  0.032  1.0
  O  O22  1  0.750  0.407  0.468  1.0
  O  O23  1  0.750  0.093  0.968  1.0
  O  O24  1  0.750  0.107  0.510  1.0
  O  O25  1  0.750  0.393  0.010  1.0
  O  O26  1  0.250  0.893  0.490  1.0
  O  O27  1  0.250  0.607  0.990  1.0
  O  O28  1  0.250  0.358  0.749  1.0
  O  O29  1  0.250  0.142  0.249  1.0
  O  O30  1  0.750  0.642  0.251  1.0
  O  O31  1  0.750  0.858  0.751  1.0
  O  O32  1  0.986  0.628  0.682  1.0
  O  O33  1  0.514  0.872  0.182  1.0
  O  O34  1  0.486  0.372  0.318  1.0
  O  O35  1  0.014  0.128  0.818  1.0
  O  O36  1  0.014  0.372  0.318  1.0
  O  O37  1  0.486  0.128  0.818  1.0
  O  O38  1  0.514  0.628  0.682  1.0
  O  O39  1  0.986  0.872  0.182  1.0
  O  O40  1  0.250  0.333  0.910  1.0
  O  O41  1  0.250  0.167  0.410  1.0
  O  O42  1  0.750  0.667  0.090  1.0
  O  O43  1  0.750  0.833  0.590  1.0
[/CIF]
.
The structure described by Ta(PO4)2 crystallizes in the orthorhombic Pnma space group. Ta(1) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(5) atoms to form TaO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra and corners with three equivalent P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form PO4 tetrahedra that share corners with three equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-26°. In the second P site, P(2) is bonded to one O(4), one O(6), and two equivalent O(5) atoms to form PO4 tetrahedra that share corners with three equivalent Ta(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 8-25°. There are six inequivalent O sites. In the first O site, O(5) is bonded in a bent 150 degrees geometry to one Ta(1) and one P(2) atom. In the second O site, O(6) is bonded in a single-bond geometry to one P(2) atom. In the third O site, O(1) is bonded in a bent 150 degrees geometry to one Ta(1) and one P(1) atom. In the fourth O site, O(2) is bonded in a linear geometry to one Ta(1) and one P(1) atom. In the fifth O site, O(3) is bonded in a single-bond geometry to one P(1) atom. In the sixth O site, O(4) is bonded in a linear geometry to one Ta(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ta(PO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.297
_cell_length_b   8.046
_cell_length_c   15.958
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   680.155
_cell_formula_units_Z   4
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
  Ta  Ta0  1  0.250  0.474  0.642  1.0
  Ta  Ta1  1  0.250  0.026  0.142  1.0
  Ta  Ta2  1  0.750  0.526  0.358  1.0
  Ta  Ta3  1  0.750  0.974  0.858  1.0
  P  P4  1  0.750  0.284  0.543  1.0
  P  P5  1  0.750  0.216  0.043  1.0
  P  P6  1  0.250  0.716  0.457  1.0
  P  P7  1  0.250  0.784  0.957  1.0
  P  P8  1  0.250  0.243  0.828  1.0
  P  P9  1  0.250  0.257  0.328  1.0
  P  P10  1  0.750  0.757  0.172  1.0
  P  P11  1  0.750  0.743  0.672  1.0
  O  O12  1  0.984  0.325  0.598  1.0
  O  O13  1  0.516  0.175  0.098  1.0
  O  O14  1  0.484  0.675  0.402  1.0
  O  O15  1  0.016  0.825  0.902  1.0
  O  O16  1  0.016  0.675  0.402  1.0
  O  O17  1  0.484  0.825  0.902  1.0
  O  O18  1  0.516  0.325  0.598  1.0
  O  O19  1  0.984  0.175  0.098  1.0
  O  O20  1  0.250  0.593  0.532  1.0
  O  O21  1  0.250  0.907  0.032  1.0
  O  O22  1  0.750  0.407  0.468  1.0
  O  O23  1  0.750  0.093  0.968  1.0
  O  O24  1  0.750  0.107  0.510  1.0
  O  O25  1  0.750  0.393  0.010  1.0
  O  O26  1  0.250  0.893  0.490  1.0
  O  O27  1  0.250  0.607  0.990  1.0
  O  O28  1  0.250  0.358  0.749  1.0
  O  O29  1  0.250  0.142  0.249  1.0
  O  O30  1  0.750  0.642  0.251  1.0
  O  O31  1  0.750  0.858  0.751  1.0
  O  O32  1  0.986  0.628  0.682  1.0
  O  O33  1  0.514  0.872  0.182  1.0
  O  O34  1  0.486  0.372  0.318  1.0
  O  O35  1  0.014  0.128  0.818  1.0
  O  O36  1  0.014  0.372  0.318  1.0
  O  O37  1  0.486  0.128  0.818  1.0
  O  O38  1  0.514  0.628  0.682  1.0
  O  O39  1  0.986  0.872  0.182  1.0
  O  O40  1  0.250  0.333  0.910  1.0
  O  O41  1  0.250  0.167  0.410  1.0
  O  O42  1  0.750  0.667  0.090  1.0
  O  O43  1  0.750  0.833  0.590  1.0
[/CIF]
.