The material structure described by Y2P4O13 crystallizes in the orthorhombic C222_1 space group. Y(1) is bonded to one O(1), one O(6), one O(7), two equivalent O(2), and two equivalent O(3) atoms to form distorted YO7 pentagonal bipyramids that share corners with two equivalent P(2)O4 tetrahedra, corners with three equivalent P(1)O4 tetrahedra, edges with two equivalent Y(1)O7 pentagonal bipyramids, and  an edgeedge with one P(1)O4 tetrahedra. 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(5) atom to form PO4 tetrahedra that share corners with three equivalent Y(1)O7 pentagonal bipyramids,  a cornercorner with one P(2)O4 tetrahedra, and  an edgeedge with one Y(1)O7 pentagonal bipyramid. In the second P site, P(2) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Y(1)O7 pentagonal bipyramids,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Y(1) and one P(1) atom. In the second O site, O(4) is bonded in a bent 150 degrees geometry to two equivalent P(2) atoms. In the third O site, O(5) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(6) is bonded in a linear geometry to one Y(1) and one P(2) atom. In the fifth O site, O(7) is bonded in a bent 150 degrees geometry to one Y(1) and one P(2) atom. In the sixth O site, O(1) is bonded in a bent 150 degrees geometry to one Y(1) and one P(1) atom. In the seventh O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Y(1) and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Y2P4O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.352
_cell_length_b   9.352
_cell_length_c   8.570
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   135.931
_symmetry_Int_Tables_number   1
_cell_volume   521.274
_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
  Y  Y0  1  0.896  0.603  0.854  1.0
  Y  Y1  1  0.603  0.896  0.146  1.0
  Y  Y2  1  0.104  0.397  0.354  1.0
  Y  Y3  1  0.397  0.104  0.646  1.0
  P  P4  1  0.418  0.100  0.001  1.0
  P  P5  1  0.100  0.418  0.999  1.0
  P  P6  1  0.582  0.900  0.501  1.0
  P  P7  1  0.900  0.582  0.499  1.0
  P  P8  1  0.278  0.152  0.273  1.0
  P  P9  1  0.152  0.278  0.727  1.0
  P  P10  1  0.722  0.848  0.773  1.0
  P  P11  1  0.848  0.722  0.227  1.0
  O  O12  1  0.482  0.027  0.108  1.0
  O  O13  1  0.027  0.482  0.892  1.0
  O  O14  1  0.518  0.973  0.608  1.0
  O  O15  1  0.973  0.518  0.392  1.0
  O  O16  1  0.226  0.930  0.904  1.0
  O  O17  1  0.930  0.226  0.096  1.0
  O  O18  1  0.774  0.070  0.404  1.0
  O  O19  1  0.070  0.774  0.596  1.0
  O  O20  1  0.579  0.263  0.884  1.0
  O  O21  1  0.263  0.579  0.116  1.0
  O  O22  1  0.421  0.737  0.384  1.0
  O  O23  1  0.737  0.421  0.616  1.0
  O  O24  1  0.086  0.914  0.250  1.0
  O  O25  1  0.914  0.086  0.750  1.0
  O  O26  1  0.788  0.621  0.394  1.0
  O  O27  1  0.621  0.788  0.606  1.0
  O  O28  1  0.212  0.379  0.894  1.0
  O  O29  1  0.379  0.212  0.106  1.0
  O  O30  1  0.740  0.782  0.202  1.0
  O  O31  1  0.782  0.740  0.798  1.0
  O  O32  1  0.260  0.218  0.702  1.0
  O  O33  1  0.218  0.260  0.298  1.0
  O  O34  1  0.826  0.594  0.104  1.0
  O  O35  1  0.594  0.826  0.896  1.0
  O  O36  1  0.174  0.406  0.604  1.0
  O  O37  1  0.406  0.174  0.396  1.0
[/CIF]
.
The material structure described by Y2P4O13 crystallizes in the orthorhombic C222_1 space group. Y(1) is bonded to one O(1), one O(6), one O(7), two equivalent O(2), and two equivalent O(3) atoms to form distorted YO7 pentagonal bipyramids that share corners with two equivalent P(2)O4 tetrahedra, corners with three equivalent P(1)O4 tetrahedra, edges with two equivalent Y(1)O7 pentagonal bipyramids, and  an edgeedge with one P(1)O4 tetrahedra. 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(5) atom to form PO4 tetrahedra that share corners with three equivalent Y(1)O7 pentagonal bipyramids,  a cornercorner with one P(2)O4 tetrahedra, and  an edgeedge with one Y(1)O7 pentagonal bipyramid. In the second P site, P(2) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Y(1)O7 pentagonal bipyramids,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Y(1) and one P(1) atom. In the second O site, O(4) is bonded in a bent 150 degrees geometry to two equivalent P(2) atoms. In the third O site, O(5) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(6) is bonded in a linear geometry to one Y(1) and one P(2) atom. In the fifth O site, O(7) is bonded in a bent 150 degrees geometry to one Y(1) and one P(2) atom. In the sixth O site, O(1) is bonded in a bent 150 degrees geometry to one Y(1) and one P(1) atom. In the seventh O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Y(1) and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Y2P4O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.352
_cell_length_b   9.352
_cell_length_c   8.570
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   135.931
_symmetry_Int_Tables_number   1
_cell_volume   521.274
_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
  Y  Y0  1  0.896  0.603  0.854  1.0
  Y  Y1  1  0.603  0.896  0.146  1.0
  Y  Y2  1  0.104  0.397  0.354  1.0
  Y  Y3  1  0.397  0.104  0.646  1.0
  P  P4  1  0.418  0.100  0.001  1.0
  P  P5  1  0.100  0.418  0.999  1.0
  P  P6  1  0.582  0.900  0.501  1.0
  P  P7  1  0.900  0.582  0.499  1.0
  P  P8  1  0.278  0.152  0.273  1.0
  P  P9  1  0.152  0.278  0.727  1.0
  P  P10  1  0.722  0.848  0.773  1.0
  P  P11  1  0.848  0.722  0.227  1.0
  O  O12  1  0.482  0.027  0.108  1.0
  O  O13  1  0.027  0.482  0.892  1.0
  O  O14  1  0.518  0.973  0.608  1.0
  O  O15  1  0.973  0.518  0.392  1.0
  O  O16  1  0.226  0.930  0.904  1.0
  O  O17  1  0.930  0.226  0.096  1.0
  O  O18  1  0.774  0.070  0.404  1.0
  O  O19  1  0.070  0.774  0.596  1.0
  O  O20  1  0.579  0.263  0.884  1.0
  O  O21  1  0.263  0.579  0.116  1.0
  O  O22  1  0.421  0.737  0.384  1.0
  O  O23  1  0.737  0.421  0.616  1.0
  O  O24  1  0.086  0.914  0.250  1.0
  O  O25  1  0.914  0.086  0.750  1.0
  O  O26  1  0.788  0.621  0.394  1.0
  O  O27  1  0.621  0.788  0.606  1.0
  O  O28  1  0.212  0.379  0.894  1.0
  O  O29  1  0.379  0.212  0.106  1.0
  O  O30  1  0.740  0.782  0.202  1.0
  O  O31  1  0.782  0.740  0.798  1.0
  O  O32  1  0.260  0.218  0.702  1.0
  O  O33  1  0.218  0.260  0.298  1.0
  O  O34  1  0.826  0.594  0.104  1.0
  O  O35  1  0.594  0.826  0.896  1.0
  O  O36  1  0.174  0.406  0.604  1.0
  O  O37  1  0.406  0.174  0.396  1.0
[/CIF]
.