The material structure described by Mo2P4O15 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(10), one O(12), one O(13), one O(15), one O(2), and one O(7) atom to form distorted MoO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and  an edgeedge with one P(2)O4 tetrahedra. In the second Mo site, Mo(2) is bonded to one O(1), one O(11), one O(4), one O(8), and one O(9) atom to form MoO5 trigonal bipyramids that share  a cornercorner with one P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(10), one O(14), one O(15), and one O(4) atom to form PO4 tetrahedra that share corners with two equivalent Mo(1)O6 octahedra and  a cornercorner with one Mo(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 24-48°. In the second P site, P(2) is bonded to one O(12), one O(13), one O(8), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Mo(2)O5 trigonal bipyramids and  an edgeedge with one Mo(1)O6 octahedra. In the third P site, P(3) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(3), and one O(5) atom. In the fourth P site, P(4) is bonded in a distorted T-shaped geometry to one O(14), one O(3), and one O(5) atom. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(3) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mo(1) and one O(6) atom. In the third O site, O(3) is bonded in an L-shaped geometry to one P(3) and one P(4) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Mo(2) and one P(1) atom. In the fifth O site, O(5) is bonded in an L-shaped geometry to one P(3) and one P(4) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one O(2) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one Mo(1) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Mo(2) and one P(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(2) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one Mo(2) atom. In the twelfth O site, O(12) is bonded in an L-shaped geometry to one Mo(1) and one P(2) atom. In the thirteenth O site, O(13) is bonded in an L-shaped geometry to one Mo(1) and one P(2) atom. In the fourteenth O site, O(14) is bonded in a bent 150 degrees geometry to one P(1) and one P(4) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 120 degrees geometry to one Mo(1) and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mo2P4O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.979
_cell_length_b   8.517
_cell_length_c   9.523
_cell_angle_alpha   71.136
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   689.180
_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
  Mo  Mo0  1  0.513  0.189  0.003  1.0
  Mo  Mo1  1  0.954  0.454  0.597  1.0
  Mo  Mo2  1  0.013  0.811  0.997  1.0
  Mo  Mo3  1  0.454  0.546  0.403  1.0
  P  P4  1  0.674  0.832  0.190  1.0
  P  P5  1  0.134  0.657  0.264  1.0
  P  P6  1  0.292  0.796  0.585  1.0
  P  P7  1  0.894  0.945  0.396  1.0
  P  P8  1  0.174  0.168  0.810  1.0
  P  P9  1  0.634  0.343  0.736  1.0
  P  P10  1  0.792  0.204  0.415  1.0
  P  P11  1  0.394  0.055  0.604  1.0
  O  O12  1  0.905  0.302  0.486  1.0
  O  O13  1  0.366  0.285  0.138  1.0
  O  O14  1  0.903  0.145  0.298  1.0
  O  O15  1  0.122  0.352  0.737  1.0
  O  O16  1  0.310  0.997  0.472  1.0
  O  O17  1  0.230  0.319  0.126  1.0
  O  O18  1  0.152  0.759  0.899  1.0
  O  O19  1  0.305  0.657  0.240  1.0
  O  O20  1  0.105  0.576  0.429  1.0
  O  O21  1  0.294  0.157  0.926  1.0
  O  O22  1  0.385  0.355  0.414  1.0
  O  O23  1  0.591  0.152  0.815  1.0
  O  O24  1  0.537  0.420  0.833  1.0
  O  O25  1  0.238  0.113  0.677  1.0
  O  O26  1  0.535  0.940  0.127  1.0
  O  O27  1  0.405  0.698  0.514  1.0
  O  O28  1  0.866  0.715  0.862  1.0
  O  O29  1  0.403  0.855  0.702  1.0
  O  O30  1  0.622  0.648  0.263  1.0
  O  O31  1  0.810  0.003  0.528  1.0
  O  O32  1  0.730  0.681  0.874  1.0
  O  O33  1  0.652  0.241  0.101  1.0
  O  O34  1  0.805  0.343  0.760  1.0
  O  O35  1  0.605  0.424  0.571  1.0
  O  O36  1  0.794  0.843  0.074  1.0
  O  O37  1  0.885  0.645  0.586  1.0
  O  O38  1  0.091  0.848  0.185  1.0
  O  O39  1  0.037  0.580  0.167  1.0
  O  O40  1  0.738  0.887  0.323  1.0
  O  O41  1  0.035  0.060  0.873  1.0
[/CIF]
.
The material structure described by Mo2P4O15 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(10), one O(12), one O(13), one O(15), one O(2), and one O(7) atom to form distorted MoO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and  an edgeedge with one P(2)O4 tetrahedra. In the second Mo site, Mo(2) is bonded to one O(1), one O(11), one O(4), one O(8), and one O(9) atom to form MoO5 trigonal bipyramids that share  a cornercorner with one P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(10), one O(14), one O(15), and one O(4) atom to form PO4 tetrahedra that share corners with two equivalent Mo(1)O6 octahedra and  a cornercorner with one Mo(2)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 24-48°. In the second P site, P(2) is bonded to one O(12), one O(13), one O(8), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Mo(2)O5 trigonal bipyramids and  an edgeedge with one Mo(1)O6 octahedra. In the third P site, P(3) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(3), and one O(5) atom. In the fourth P site, P(4) is bonded in a distorted T-shaped geometry to one O(14), one O(3), and one O(5) atom. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(3) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mo(1) and one O(6) atom. In the third O site, O(3) is bonded in an L-shaped geometry to one P(3) and one P(4) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Mo(2) and one P(1) atom. In the fifth O site, O(5) is bonded in an L-shaped geometry to one P(3) and one P(4) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one O(2) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one Mo(1) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Mo(2) and one P(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(2) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one Mo(2) atom. In the twelfth O site, O(12) is bonded in an L-shaped geometry to one Mo(1) and one P(2) atom. In the thirteenth O site, O(13) is bonded in an L-shaped geometry to one Mo(1) and one P(2) atom. In the fourteenth O site, O(14) is bonded in a bent 150 degrees geometry to one P(1) and one P(4) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 120 degrees geometry to one Mo(1) and one P(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mo2P4O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.979
_cell_length_b   8.517
_cell_length_c   9.523
_cell_angle_alpha   71.136
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   689.180
_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
  Mo  Mo0  1  0.513  0.189  0.003  1.0
  Mo  Mo1  1  0.954  0.454  0.597  1.0
  Mo  Mo2  1  0.013  0.811  0.997  1.0
  Mo  Mo3  1  0.454  0.546  0.403  1.0
  P  P4  1  0.674  0.832  0.190  1.0
  P  P5  1  0.134  0.657  0.264  1.0
  P  P6  1  0.292  0.796  0.585  1.0
  P  P7  1  0.894  0.945  0.396  1.0
  P  P8  1  0.174  0.168  0.810  1.0
  P  P9  1  0.634  0.343  0.736  1.0
  P  P10  1  0.792  0.204  0.415  1.0
  P  P11  1  0.394  0.055  0.604  1.0
  O  O12  1  0.905  0.302  0.486  1.0
  O  O13  1  0.366  0.285  0.138  1.0
  O  O14  1  0.903  0.145  0.298  1.0
  O  O15  1  0.122  0.352  0.737  1.0
  O  O16  1  0.310  0.997  0.472  1.0
  O  O17  1  0.230  0.319  0.126  1.0
  O  O18  1  0.152  0.759  0.899  1.0
  O  O19  1  0.305  0.657  0.240  1.0
  O  O20  1  0.105  0.576  0.429  1.0
  O  O21  1  0.294  0.157  0.926  1.0
  O  O22  1  0.385  0.355  0.414  1.0
  O  O23  1  0.591  0.152  0.815  1.0
  O  O24  1  0.537  0.420  0.833  1.0
  O  O25  1  0.238  0.113  0.677  1.0
  O  O26  1  0.535  0.940  0.127  1.0
  O  O27  1  0.405  0.698  0.514  1.0
  O  O28  1  0.866  0.715  0.862  1.0
  O  O29  1  0.403  0.855  0.702  1.0
  O  O30  1  0.622  0.648  0.263  1.0
  O  O31  1  0.810  0.003  0.528  1.0
  O  O32  1  0.730  0.681  0.874  1.0
  O  O33  1  0.652  0.241  0.101  1.0
  O  O34  1  0.805  0.343  0.760  1.0
  O  O35  1  0.605  0.424  0.571  1.0
  O  O36  1  0.794  0.843  0.074  1.0
  O  O37  1  0.885  0.645  0.586  1.0
  O  O38  1  0.091  0.848  0.185  1.0
  O  O39  1  0.037  0.580  0.167  1.0
  O  O40  1  0.738  0.887  0.323  1.0
  O  O41  1  0.035  0.060  0.873  1.0
[/CIF]
.