The crystal structure described by Tm2P4O13 crystallizes in the monoclinic C2/c space group. Tm(1) is bonded in a 8-coordinate geometry to one O(2), one O(6), two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(7) atom to form corner-sharing PO4 tetrahedra. In the second P site, P(2) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form corner-sharing PO4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a bent 120 degrees geometry to two equivalent P(1) atoms. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Tm(1) and one P(1) atom. In the third O site, O(2) is bonded in a bent 150 degrees geometry to one Tm(1) and one P(1) atom. In the fourth O site, O(3) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Tm(1) and one P(2) atom. In the sixth O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Tm(1) and one P(2) atom. In the seventh O site, O(6) is bonded in a bent 150 degrees geometry to one Tm(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tm2P4O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.848
_cell_length_b   6.848
_cell_length_c   12.892
_cell_angle_alpha   75.841
_cell_angle_beta   75.841
_cell_angle_gamma   58.970
_symmetry_Int_Tables_number   1
_cell_volume   497.222
_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
  Tm  Tm0  1  0.692  0.697  0.449  1.0
  Tm  Tm1  1  0.303  0.308  0.051  1.0
  Tm  Tm2  1  0.697  0.692  0.949  1.0
  Tm  Tm3  1  0.308  0.303  0.551  1.0
  P  P4  1  0.837  0.139  0.367  1.0
  P  P5  1  0.139  0.837  0.867  1.0
  P  P6  1  0.227  0.241  0.340  1.0
  P  P7  1  0.759  0.773  0.160  1.0
  P  P8  1  0.241  0.227  0.840  1.0
  P  P9  1  0.773  0.759  0.660  1.0
  P  P10  1  0.861  0.163  0.133  1.0
  P  P11  1  0.163  0.861  0.633  1.0
  O  O12  1  0.671  0.317  0.442  1.0
  O  O13  1  0.876  0.898  0.397  1.0
  O  O14  1  0.317  0.671  0.942  1.0
  O  O15  1  0.897  0.909  0.153  1.0
  O  O16  1  0.074  0.440  0.407  1.0
  O  O17  1  0.426  0.076  0.405  1.0
  O  O18  1  0.295  0.307  0.222  1.0
  O  O19  1  0.898  0.876  0.897  1.0
  O  O20  1  0.909  0.897  0.653  1.0
  O  O21  1  0.693  0.705  0.278  1.0
  O  O22  1  0.924  0.574  0.095  1.0
  O  O23  1  0.560  0.926  0.093  1.0
  O  O24  1  0.440  0.074  0.907  1.0
  O  O25  1  0.076  0.426  0.905  1.0
  O  O26  1  0.307  0.295  0.722  1.0
  O  O27  1  0.091  0.103  0.347  1.0
  O  O28  1  0.102  0.124  0.103  1.0
  O  O29  1  0.705  0.693  0.778  1.0
  O  O30  1  0.574  0.924  0.595  1.0
  O  O31  1  0.926  0.560  0.593  1.0
  O  O32  1  0.752  0.248  0.250  1.0
  O  O33  1  0.103  0.091  0.847  1.0
  O  O34  1  0.683  0.329  0.058  1.0
  O  O35  1  0.124  0.102  0.603  1.0
  O  O36  1  0.248  0.752  0.750  1.0
  O  O37  1  0.329  0.683  0.558  1.0
[/CIF]
.
The crystal structure described by Tm2P4O13 crystallizes in the monoclinic C2/c space group. Tm(1) is bonded in a 8-coordinate geometry to one O(2), one O(6), two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(7) atom to form corner-sharing PO4 tetrahedra. In the second P site, P(2) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form corner-sharing PO4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a bent 120 degrees geometry to two equivalent P(1) atoms. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Tm(1) and one P(1) atom. In the third O site, O(2) is bonded in a bent 150 degrees geometry to one Tm(1) and one P(1) atom. In the fourth O site, O(3) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Tm(1) and one P(2) atom. In the sixth O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Tm(1) and one P(2) atom. In the seventh O site, O(6) is bonded in a bent 150 degrees geometry to one Tm(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tm2P4O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.848
_cell_length_b   6.848
_cell_length_c   12.892
_cell_angle_alpha   75.841
_cell_angle_beta   75.841
_cell_angle_gamma   58.970
_symmetry_Int_Tables_number   1
_cell_volume   497.222
_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
  Tm  Tm0  1  0.692  0.697  0.449  1.0
  Tm  Tm1  1  0.303  0.308  0.051  1.0
  Tm  Tm2  1  0.697  0.692  0.949  1.0
  Tm  Tm3  1  0.308  0.303  0.551  1.0
  P  P4  1  0.837  0.139  0.367  1.0
  P  P5  1  0.139  0.837  0.867  1.0
  P  P6  1  0.227  0.241  0.340  1.0
  P  P7  1  0.759  0.773  0.160  1.0
  P  P8  1  0.241  0.227  0.840  1.0
  P  P9  1  0.773  0.759  0.660  1.0
  P  P10  1  0.861  0.163  0.133  1.0
  P  P11  1  0.163  0.861  0.633  1.0
  O  O12  1  0.671  0.317  0.442  1.0
  O  O13  1  0.876  0.898  0.397  1.0
  O  O14  1  0.317  0.671  0.942  1.0
  O  O15  1  0.897  0.909  0.153  1.0
  O  O16  1  0.074  0.440  0.407  1.0
  O  O17  1  0.426  0.076  0.405  1.0
  O  O18  1  0.295  0.307  0.222  1.0
  O  O19  1  0.898  0.876  0.897  1.0
  O  O20  1  0.909  0.897  0.653  1.0
  O  O21  1  0.693  0.705  0.278  1.0
  O  O22  1  0.924  0.574  0.095  1.0
  O  O23  1  0.560  0.926  0.093  1.0
  O  O24  1  0.440  0.074  0.907  1.0
  O  O25  1  0.076  0.426  0.905  1.0
  O  O26  1  0.307  0.295  0.722  1.0
  O  O27  1  0.091  0.103  0.347  1.0
  O  O28  1  0.102  0.124  0.103  1.0
  O  O29  1  0.705  0.693  0.778  1.0
  O  O30  1  0.574  0.924  0.595  1.0
  O  O31  1  0.926  0.560  0.593  1.0
  O  O32  1  0.752  0.248  0.250  1.0
  O  O33  1  0.103  0.091  0.847  1.0
  O  O34  1  0.683  0.329  0.058  1.0
  O  O35  1  0.124  0.102  0.603  1.0
  O  O36  1  0.248  0.752  0.750  1.0
  O  O37  1  0.329  0.683  0.558  1.0
[/CIF]
.