The compound described by Mo2P4O15 crystallizes in the monoclinic Pc space group. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(11), one O(13), one O(3), one O(5), and one O(9) atom to form distorted MoO6 octahedra that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and corners with two equivalent P(1)O4 tetrahedra. In the second Mo site, Mo(2) is bonded to one O(10), one O(12), one O(14), one O(2), one O(4), and one O(6) atom to form distorted MoO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)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(11), one O(2), one O(3), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Mo(2)O6 octahedra, corners with two equivalent Mo(1)O6 octahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 21-32°. In the second P site, P(2) is bonded to one O(1), one O(12), one O(4), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Mo(1)O6 octahedra, corners with two equivalent Mo(2)O6 octahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 20-33°. In the third P site, P(3) is bonded to one O(10), one O(13), one O(15), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Mo(1)O6 octahedra,  a cornercorner with one Mo(2)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 25-32°. In the fourth P site, P(4) is bonded to one O(14), one O(15), one O(8), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Mo(1)O6 octahedra,  a cornercorner with one Mo(2)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 21-35°. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(2) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(2) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one Mo(1) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Mo(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one P(1) and one P(3) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one P(2) and one P(4) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(4) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(3) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(2) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one P(3) atom. In the fourteenth O site, O(14) is bonded in a distorted bent 150 degrees geometry to one Mo(2) and one P(4) atom. In the fifteenth O site, O(15) is bonded in a linear geometry to one P(3) and one P(4) atom. is represented by the CIF card [CIF]
data_Mo2P4O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.833
_cell_length_b   8.496
_cell_length_c   11.108
_cell_angle_alpha   73.942
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   619.690
_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  0.999  0.203  0.348  1.0
  Mo  Mo1  1  0.498  0.797  0.153  1.0
  Mo  Mo2  1  0.502  0.797  0.653  1.0
  Mo  Mo3  1  0.001  0.203  0.848  1.0
  P  P4  1  0.310  0.185  0.101  1.0
  P  P5  1  0.808  0.817  0.399  1.0
  P  P6  1  0.192  0.817  0.899  1.0
  P  P7  1  0.690  0.185  0.601  1.0
  P  P8  1  0.637  0.414  0.127  1.0
  P  P9  1  0.133  0.581  0.377  1.0
  P  P10  1  0.867  0.581  0.877  1.0
  P  P11  1  0.363  0.414  0.627  1.0
  O  O12  1  0.922  0.973  0.340  1.0
  O  O13  1  0.421  0.027  0.160  1.0
  O  O14  1  0.579  0.027  0.660  1.0
  O  O15  1  0.078  0.973  0.840  1.0
  O  O16  1  0.778  0.195  0.474  1.0
  O  O17  1  0.276  0.806  0.028  1.0
  O  O18  1  0.724  0.806  0.528  1.0
  O  O19  1  0.222  0.195  0.974  1.0
  O  O20  1  0.183  0.155  0.455  1.0
  O  O21  1  0.683  0.844  0.047  1.0
  O  O22  1  0.317  0.844  0.547  1.0
  O  O23  1  0.817  0.155  0.955  1.0
  O  O24  1  0.470  0.331  0.066  1.0
  O  O25  1  0.963  0.670  0.430  1.0
  O  O26  1  0.037  0.670  0.930  1.0
  O  O27  1  0.530  0.331  0.566  1.0
  O  O28  1  0.044  0.455  0.322  1.0
  O  O29  1  0.546  0.546  0.176  1.0
  O  O30  1  0.454  0.546  0.676  1.0
  O  O31  1  0.956  0.455  0.822  1.0
  O  O32  1  0.165  0.228  0.190  1.0
  O  O33  1  0.659  0.777  0.311  1.0
  O  O34  1  0.341  0.777  0.811  1.0
  O  O35  1  0.835  0.228  0.690  1.0
  O  O36  1  0.757  0.288  0.218  1.0
  O  O37  1  0.269  0.701  0.294  1.0
  O  O38  1  0.731  0.701  0.794  1.0
  O  O39  1  0.243  0.288  0.718  1.0
  O  O40  1  0.767  0.491  0.007  1.0
  O  O41  1  0.233  0.491  0.507  1.0
[/CIF]
.
The compound described by Mo2P4O15 crystallizes in the monoclinic Pc space group. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(11), one O(13), one O(3), one O(5), and one O(9) atom to form distorted MoO6 octahedra that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and corners with two equivalent P(1)O4 tetrahedra. In the second Mo site, Mo(2) is bonded to one O(10), one O(12), one O(14), one O(2), one O(4), and one O(6) atom to form distorted MoO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)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(11), one O(2), one O(3), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Mo(2)O6 octahedra, corners with two equivalent Mo(1)O6 octahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 21-32°. In the second P site, P(2) is bonded to one O(1), one O(12), one O(4), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Mo(1)O6 octahedra, corners with two equivalent Mo(2)O6 octahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 20-33°. In the third P site, P(3) is bonded to one O(10), one O(13), one O(15), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Mo(1)O6 octahedra,  a cornercorner with one Mo(2)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 25-32°. In the fourth P site, P(4) is bonded to one O(14), one O(15), one O(8), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Mo(1)O6 octahedra,  a cornercorner with one Mo(2)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 21-35°. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(2) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(2) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one Mo(1) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one Mo(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one P(1) and one P(3) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one P(2) and one P(4) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(4) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(3) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(2) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one P(3) atom. In the fourteenth O site, O(14) is bonded in a distorted bent 150 degrees geometry to one Mo(2) and one P(4) atom. In the fifteenth O site, O(15) is bonded in a linear geometry to one P(3) and one P(4) atom. is represented by the CIF card [CIF]
data_Mo2P4O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.833
_cell_length_b   8.496
_cell_length_c   11.108
_cell_angle_alpha   73.942
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   619.690
_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  0.999  0.203  0.348  1.0
  Mo  Mo1  1  0.498  0.797  0.153  1.0
  Mo  Mo2  1  0.502  0.797  0.653  1.0
  Mo  Mo3  1  0.001  0.203  0.848  1.0
  P  P4  1  0.310  0.185  0.101  1.0
  P  P5  1  0.808  0.817  0.399  1.0
  P  P6  1  0.192  0.817  0.899  1.0
  P  P7  1  0.690  0.185  0.601  1.0
  P  P8  1  0.637  0.414  0.127  1.0
  P  P9  1  0.133  0.581  0.377  1.0
  P  P10  1  0.867  0.581  0.877  1.0
  P  P11  1  0.363  0.414  0.627  1.0
  O  O12  1  0.922  0.973  0.340  1.0
  O  O13  1  0.421  0.027  0.160  1.0
  O  O14  1  0.579  0.027  0.660  1.0
  O  O15  1  0.078  0.973  0.840  1.0
  O  O16  1  0.778  0.195  0.474  1.0
  O  O17  1  0.276  0.806  0.028  1.0
  O  O18  1  0.724  0.806  0.528  1.0
  O  O19  1  0.222  0.195  0.974  1.0
  O  O20  1  0.183  0.155  0.455  1.0
  O  O21  1  0.683  0.844  0.047  1.0
  O  O22  1  0.317  0.844  0.547  1.0
  O  O23  1  0.817  0.155  0.955  1.0
  O  O24  1  0.470  0.331  0.066  1.0
  O  O25  1  0.963  0.670  0.430  1.0
  O  O26  1  0.037  0.670  0.930  1.0
  O  O27  1  0.530  0.331  0.566  1.0
  O  O28  1  0.044  0.455  0.322  1.0
  O  O29  1  0.546  0.546  0.176  1.0
  O  O30  1  0.454  0.546  0.676  1.0
  O  O31  1  0.956  0.455  0.822  1.0
  O  O32  1  0.165  0.228  0.190  1.0
  O  O33  1  0.659  0.777  0.311  1.0
  O  O34  1  0.341  0.777  0.811  1.0
  O  O35  1  0.835  0.228  0.690  1.0
  O  O36  1  0.757  0.288  0.218  1.0
  O  O37  1  0.269  0.701  0.294  1.0
  O  O38  1  0.731  0.701  0.794  1.0
  O  O39  1  0.243  0.288  0.718  1.0
  O  O40  1  0.767  0.491  0.007  1.0
  O  O41  1  0.233  0.491  0.507  1.0
[/CIF]
.