The material structure described by Ba2TeO(PO4)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 10-coordinate geometry to one O(2), one O(5), one O(6), one O(8), two equivalent O(1), two equivalent O(4), and two equivalent O(9) atoms. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(4), one O(6), one O(7), one O(9), and two equivalent O(3) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Te(1)O5 square pyramid. In the second P site, P(2) is bonded to one O(3), one O(7), one O(8), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Te(1)O5 square pyramids. Te(1) is bonded to one O(5), one O(7), one O(8), and two equivalent O(2) atoms to form TeO5 square pyramids that share  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one Te(1)O5 square pyramid. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Ba(2), two equivalent Ba(1), and one P(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), and two equivalent Te(1) atoms. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Ba(2) and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Ba(2), two equivalent Ba(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Ba(1), one P(1), and one Te(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Ba(1), one Ba(2), and one P(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Ba(2), one P(2), and one Te(1) atom. In the eighth O site, O(8) is bonded in a 1-coordinate geometry to one Ba(1), one P(2), and one Te(1) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Ba(2), two equivalent Ba(1), and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ba2TeP2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.064
_cell_length_b   7.515
_cell_length_c   9.040
_cell_angle_alpha   76.841
_cell_angle_beta   80.016
_cell_angle_gamma   75.476
_symmetry_Int_Tables_number   1
_cell_volume   448.937
_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
  Ba  Ba0  1  0.631  0.195  0.583  1.0
  Ba  Ba1  1  0.897  0.617  0.757  1.0
  Ba  Ba2  1  0.369  0.805  0.417  1.0
  Ba  Ba3  1  0.103  0.383  0.243  1.0
  Te  Te4  1  0.356  0.887  0.954  1.0
  Te  Te5  1  0.644  0.113  0.046  1.0
  P  P6  1  0.135  0.121  0.648  1.0
  P  P7  1  0.865  0.879  0.352  1.0
  P  P8  1  0.376  0.521  0.816  1.0
  P  P9  1  0.624  0.479  0.184  1.0
  O  O10  1  0.277  0.148  0.497  1.0
  O  O11  1  0.379  0.071  0.102  1.0
  O  O12  1  0.199  0.530  0.939  1.0
  O  O13  1  0.065  0.936  0.676  1.0
  O  O14  1  0.801  0.470  0.061  1.0
  O  O15  1  0.729  0.890  0.221  1.0
  O  O16  1  0.039  0.709  0.347  1.0
  O  O17  1  0.532  0.299  0.198  1.0
  O  O18  1  0.551  0.349  0.856  1.0
  O  O19  1  0.671  0.477  0.343  1.0
  O  O20  1  0.621  0.929  0.898  1.0
  O  O21  1  0.468  0.701  0.802  1.0
  O  O22  1  0.449  0.651  0.144  1.0
  O  O23  1  0.723  0.852  0.503  1.0
  O  O24  1  0.271  0.110  0.779  1.0
  O  O25  1  0.961  0.291  0.653  1.0
  O  O26  1  0.935  0.064  0.324  1.0
  O  O27  1  0.329  0.523  0.657  1.0
[/CIF]
.
The material structure described by Ba2TeO(PO4)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 10-coordinate geometry to one O(2), one O(5), one O(6), one O(8), two equivalent O(1), two equivalent O(4), and two equivalent O(9) atoms. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(4), one O(6), one O(7), one O(9), and two equivalent O(3) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Te(1)O5 square pyramid. In the second P site, P(2) is bonded to one O(3), one O(7), one O(8), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Te(1)O5 square pyramids. Te(1) is bonded to one O(5), one O(7), one O(8), and two equivalent O(2) atoms to form TeO5 square pyramids that share  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one Te(1)O5 square pyramid. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Ba(2), two equivalent Ba(1), and one P(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), and two equivalent Te(1) atoms. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Ba(2) and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Ba(2), two equivalent Ba(1), and one P(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Ba(1), one P(1), and one Te(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Ba(1), one Ba(2), and one P(1) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Ba(2), one P(2), and one Te(1) atom. In the eighth O site, O(8) is bonded in a 1-coordinate geometry to one Ba(1), one P(2), and one Te(1) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Ba(2), two equivalent Ba(1), and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ba2TeP2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.064
_cell_length_b   7.515
_cell_length_c   9.040
_cell_angle_alpha   76.841
_cell_angle_beta   80.016
_cell_angle_gamma   75.476
_symmetry_Int_Tables_number   1
_cell_volume   448.937
_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
  Ba  Ba0  1  0.631  0.195  0.583  1.0
  Ba  Ba1  1  0.897  0.617  0.757  1.0
  Ba  Ba2  1  0.369  0.805  0.417  1.0
  Ba  Ba3  1  0.103  0.383  0.243  1.0
  Te  Te4  1  0.356  0.887  0.954  1.0
  Te  Te5  1  0.644  0.113  0.046  1.0
  P  P6  1  0.135  0.121  0.648  1.0
  P  P7  1  0.865  0.879  0.352  1.0
  P  P8  1  0.376  0.521  0.816  1.0
  P  P9  1  0.624  0.479  0.184  1.0
  O  O10  1  0.277  0.148  0.497  1.0
  O  O11  1  0.379  0.071  0.102  1.0
  O  O12  1  0.199  0.530  0.939  1.0
  O  O13  1  0.065  0.936  0.676  1.0
  O  O14  1  0.801  0.470  0.061  1.0
  O  O15  1  0.729  0.890  0.221  1.0
  O  O16  1  0.039  0.709  0.347  1.0
  O  O17  1  0.532  0.299  0.198  1.0
  O  O18  1  0.551  0.349  0.856  1.0
  O  O19  1  0.671  0.477  0.343  1.0
  O  O20  1  0.621  0.929  0.898  1.0
  O  O21  1  0.468  0.701  0.802  1.0
  O  O22  1  0.449  0.651  0.144  1.0
  O  O23  1  0.723  0.852  0.503  1.0
  O  O24  1  0.271  0.110  0.779  1.0
  O  O25  1  0.961  0.291  0.653  1.0
  O  O26  1  0.935  0.064  0.324  1.0
  O  O27  1  0.329  0.523  0.657  1.0
[/CIF]
.