The structure described by MoP2O7 crystallizes in the monoclinic P2_1 space group. Mo(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form MoO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra and corners with three equivalent P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) 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 three equivalent Mo(1)O6 octahedra and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 36-48°. In the second P site, P(2) is bonded to one O(1), one O(2), one O(3), and one O(7) atom to form PO4 tetrahedra that share corners with three equivalent Mo(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 29-47°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 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(1) and one P(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Mo(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MoP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.297
_cell_length_b   4.909
_cell_length_c   7.007
_cell_angle_alpha   73.333
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   273.403
_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  0.052  0.781  0.728  1.0
  Mo  Mo1  1  0.552  0.219  0.272  1.0
  P  P2  1  0.364  0.615  0.503  1.0
  P  P3  1  0.288  0.236  0.890  1.0
  P  P4  1  0.864  0.385  0.497  1.0
  P  P5  1  0.788  0.764  0.110  1.0
  O  O6  1  0.147  0.426  0.911  1.0
  O  O7  1  0.231  0.991  0.817  1.0
  O  O8  1  0.731  0.009  0.183  1.0
  O  O9  1  0.390  0.138  0.072  1.0
  O  O10  1  0.986  0.147  0.537  1.0
  O  O11  1  0.692  0.286  0.495  1.0
  O  O12  1  0.380  0.434  0.360  1.0
  O  O13  1  0.647  0.574  0.089  1.0
  O  O14  1  0.486  0.853  0.463  1.0
  O  O15  1  0.406  0.422  0.722  1.0
  O  O16  1  0.906  0.578  0.278  1.0
  O  O17  1  0.880  0.566  0.640  1.0
  O  O18  1  0.192  0.714  0.505  1.0
  O  O19  1  0.890  0.862  0.928  1.0
[/CIF]
.
The structure described by MoP2O7 crystallizes in the monoclinic P2_1 space group. Mo(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form MoO6 octahedra that share corners with three equivalent P(1)O4 tetrahedra and corners with three equivalent P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) 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 three equivalent Mo(1)O6 octahedra and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 36-48°. In the second P site, P(2) is bonded to one O(1), one O(2), one O(3), and one O(7) atom to form PO4 tetrahedra that share corners with three equivalent Mo(1)O6 octahedra and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 29-47°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 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(1) and one P(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Mo(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MoP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.297
_cell_length_b   4.909
_cell_length_c   7.007
_cell_angle_alpha   73.333
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   273.403
_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  0.052  0.781  0.728  1.0
  Mo  Mo1  1  0.552  0.219  0.272  1.0
  P  P2  1  0.364  0.615  0.503  1.0
  P  P3  1  0.288  0.236  0.890  1.0
  P  P4  1  0.864  0.385  0.497  1.0
  P  P5  1  0.788  0.764  0.110  1.0
  O  O6  1  0.147  0.426  0.911  1.0
  O  O7  1  0.231  0.991  0.817  1.0
  O  O8  1  0.731  0.009  0.183  1.0
  O  O9  1  0.390  0.138  0.072  1.0
  O  O10  1  0.986  0.147  0.537  1.0
  O  O11  1  0.692  0.286  0.495  1.0
  O  O12  1  0.380  0.434  0.360  1.0
  O  O13  1  0.647  0.574  0.089  1.0
  O  O14  1  0.486  0.853  0.463  1.0
  O  O15  1  0.406  0.422  0.722  1.0
  O  O16  1  0.906  0.578  0.278  1.0
  O  O17  1  0.880  0.566  0.640  1.0
  O  O18  1  0.192  0.714  0.505  1.0
  O  O19  1  0.890  0.862  0.928  1.0
[/CIF]
.