The material structure described by MgCoP2O7 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form distorted MgO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  an edgeedge with one P(1)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. Co(1) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), one O(5), and one O(7) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(4), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  an edgeedge with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 52°. In the second P site, P(2) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  an edgeedge with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 52°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the second O site, O(2) is bonded in a T-shaped geometry to one Mg(1), one Co(1), and one P(1) atom. In the third O site, O(3) is bonded in a T-shaped geometry to one Mg(1), one Co(1), and one P(2) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Mg(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Mg(1), one Co(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mg(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Mg(1), one Co(1), and one P(1) atom. is represented by the CIF file [CIF]
data_MgCoP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.187
_cell_length_b   5.795
_cell_length_c   5.799
_cell_angle_alpha   73.777
_cell_angle_beta   88.724
_cell_angle_gamma   91.587
_symmetry_Int_Tables_number   1
_cell_volume   167.251
_cell_formula_units_Z   1
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
  Mg  Mg0  1  0.223  0.889  0.497  1.0
  Co  Co1  1  0.724  0.062  0.673  1.0
  P  P2  1  0.167  0.790  0.993  1.0
  P  P3  1  0.281  0.385  0.399  1.0
  O  O4  1  0.223  0.510  0.118  1.0
  O  O5  1  0.416  0.899  0.851  1.0
  O  O6  1  0.032  0.242  0.507  1.0
  O  O7  1  0.073  0.906  0.181  1.0
  O  O8  1  0.481  0.191  0.396  1.0
  O  O9  1  0.374  0.574  0.514  1.0
  O  O10  1  0.966  0.787  0.798  1.0
[/CIF]
.
The material structure described by MgCoP2O7 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form distorted MgO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  an edgeedge with one P(1)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. Co(1) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), one O(5), and one O(7) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(4), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  an edgeedge with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 52°. In the second P site, P(2) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  an edgeedge with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 52°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the second O site, O(2) is bonded in a T-shaped geometry to one Mg(1), one Co(1), and one P(1) atom. In the third O site, O(3) is bonded in a T-shaped geometry to one Mg(1), one Co(1), and one P(2) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Mg(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Mg(1), one Co(1), and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mg(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted T-shaped geometry to one Mg(1), one Co(1), and one P(1) atom. is represented by the CIF file [CIF]
data_MgCoP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.187
_cell_length_b   5.795
_cell_length_c   5.799
_cell_angle_alpha   73.777
_cell_angle_beta   88.724
_cell_angle_gamma   91.587
_symmetry_Int_Tables_number   1
_cell_volume   167.251
_cell_formula_units_Z   1
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
  Mg  Mg0  1  0.223  0.889  0.497  1.0
  Co  Co1  1  0.724  0.062  0.673  1.0
  P  P2  1  0.167  0.790  0.993  1.0
  P  P3  1  0.281  0.385  0.399  1.0
  O  O4  1  0.223  0.510  0.118  1.0
  O  O5  1  0.416  0.899  0.851  1.0
  O  O6  1  0.032  0.242  0.507  1.0
  O  O7  1  0.073  0.906  0.181  1.0
  O  O8  1  0.481  0.191  0.396  1.0
  O  O9  1  0.374  0.574  0.514  1.0
  O  O10  1  0.966  0.787  0.798  1.0
[/CIF]
.