The crystal structure described by ZnCo(P2O7) crystallizes in the triclinic P1 space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(11), one O(12), one O(13), one O(4), and one O(7) atom to form CoO5 square pyramids that share  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra,  an edgeedge with one Co(2)O5 square pyramid, and  an edgeedge with one Zn(1)O5 trigonal bipyramid. In the second Co site, Co(2) is bonded to one O(11), one O(12), one O(14), one O(3), and one O(8) atom to form CoO5 square pyramids that share  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra,  an edgeedge with one Co(1)O5 square pyramid, and  an edgeedge with one Zn(2)O5 trigonal bipyramid. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(10), one O(13), one O(4), one O(5), and one O(9) atom to form ZnO5 trigonal bipyramids that share  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra,  an edgeedge with one Co(1)O5 square pyramid, and  an edgeedge with one Zn(2)O5 trigonal bipyramid. In the second Zn site, Zn(2) is bonded to one O(10), one O(14), one O(3), one O(6), and one O(9) atom to form ZnO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra,  an edgeedge with one Co(2)O5 square pyramid, and  an edgeedge with one Zn(1)O5 trigonal bipyramid. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(10), one O(12), one O(2), and one O(3) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O5 square pyramid, corners with two equivalent Co(2)O5 square pyramids,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one Zn(1)O5 trigonal bipyramid, and corners with two equivalent Zn(2)O5 trigonal bipyramids. In the second P site, P(2) is bonded to one O(1), one O(11), one O(4), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Co(2)O5 square pyramid, corners with two equivalent Co(1)O5 square pyramids,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one Zn(2)O5 trigonal bipyramid, and corners with two equivalent Zn(1)O5 trigonal bipyramids. In the third P site, P(3) is bonded to one O(1), one O(14), one O(6), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Co(2)O5 square pyramids,  a cornercorner with one P(2)O4 tetrahedra, and corners with two equivalent Zn(2)O5 trigonal bipyramids. In the fourth P site, P(4) is bonded to one O(13), one O(2), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Co(1)O5 square pyramids,  a cornercorner with one P(1)O4 tetrahedra, and corners with two equivalent Zn(1)O5 trigonal bipyramids. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one P(2) and one P(3) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one P(1) and one P(4) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(2), one Zn(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Co(1), one Zn(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one P(4) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Zn(2) and one P(3) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Co(1) and one P(4) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Co(2) and one P(3) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(2), and one P(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(2), and one P(1) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one P(2) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one P(1) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one Co(1), one Zn(1), and one P(4) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Co(2), one Zn(2), and one P(3) atom. is represented by the CIF file [CIF]
data_ZnCoP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.426
_cell_length_b   7.062
_cell_length_c   6.273
_cell_angle_alpha   77.400
_cell_angle_beta   81.083
_cell_angle_gamma   69.357
_symmetry_Int_Tables_number   1
_cell_volume   259.002
_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
  Zn  Zn0  1  0.285  0.198  0.934  1.0
  Zn  Zn1  1  0.717  0.799  0.069  1.0
  Co  Co2  1  0.907  0.209  0.334  1.0
  Co  Co3  1  0.093  0.802  0.670  1.0
  P  P4  1  0.208  0.770  0.166  1.0
  P  P5  1  0.790  0.231  0.837  1.0
  P  P6  1  0.646  0.675  0.602  1.0
  P  P7  1  0.355  0.323  0.397  1.0
  O  O8  1  0.630  0.452  0.739  1.0
  O  O9  1  0.364  0.550  0.269  1.0
  O  O10  1  0.066  0.745  0.003  1.0
  O  O11  1  0.935  0.253  0.998  1.0
  O  O12  1  0.246  0.354  0.628  1.0
  O  O13  1  0.758  0.632  0.374  1.0
  O  O14  1  0.597  0.191  0.383  1.0
  O  O15  1  0.405  0.811  0.605  1.0
  O  O16  1  0.628  0.116  0.950  1.0
  O  O17  1  0.375  0.880  0.049  1.0
  O  O18  1  0.943  0.126  0.654  1.0
  O  O19  1  0.053  0.881  0.345  1.0
  O  O20  1  0.210  0.269  0.258  1.0
  O  O21  1  0.790  0.732  0.737  1.0
[/CIF]
.
The crystal structure described by ZnCo(P2O7) crystallizes in the triclinic P1 space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(11), one O(12), one O(13), one O(4), and one O(7) atom to form CoO5 square pyramids that share  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra,  an edgeedge with one Co(2)O5 square pyramid, and  an edgeedge with one Zn(1)O5 trigonal bipyramid. In the second Co site, Co(2) is bonded to one O(11), one O(12), one O(14), one O(3), and one O(8) atom to form CoO5 square pyramids that share  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra,  an edgeedge with one Co(1)O5 square pyramid, and  an edgeedge with one Zn(2)O5 trigonal bipyramid. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(10), one O(13), one O(4), one O(5), and one O(9) atom to form ZnO5 trigonal bipyramids that share  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra,  an edgeedge with one Co(1)O5 square pyramid, and  an edgeedge with one Zn(2)O5 trigonal bipyramid. In the second Zn site, Zn(2) is bonded to one O(10), one O(14), one O(3), one O(6), and one O(9) atom to form ZnO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra,  an edgeedge with one Co(2)O5 square pyramid, and  an edgeedge with one Zn(1)O5 trigonal bipyramid. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(10), one O(12), one O(2), and one O(3) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O5 square pyramid, corners with two equivalent Co(2)O5 square pyramids,  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one Zn(1)O5 trigonal bipyramid, and corners with two equivalent Zn(2)O5 trigonal bipyramids. In the second P site, P(2) is bonded to one O(1), one O(11), one O(4), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Co(2)O5 square pyramid, corners with two equivalent Co(1)O5 square pyramids,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one Zn(2)O5 trigonal bipyramid, and corners with two equivalent Zn(1)O5 trigonal bipyramids. In the third P site, P(3) is bonded to one O(1), one O(14), one O(6), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Co(2)O5 square pyramids,  a cornercorner with one P(2)O4 tetrahedra, and corners with two equivalent Zn(2)O5 trigonal bipyramids. In the fourth P site, P(4) is bonded to one O(13), one O(2), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Co(1)O5 square pyramids,  a cornercorner with one P(1)O4 tetrahedra, and corners with two equivalent Zn(1)O5 trigonal bipyramids. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one P(2) and one P(3) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one P(1) and one P(4) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(2), one Zn(2), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Co(1), one Zn(1), and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one P(4) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Zn(2) and one P(3) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Co(1) and one P(4) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Co(2) and one P(3) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(2), and one P(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(2), and one P(1) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one P(2) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one P(1) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal planar geometry to one Co(1), one Zn(1), and one P(4) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Co(2), one Zn(2), and one P(3) atom. is represented by the CIF file [CIF]
data_ZnCoP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.426
_cell_length_b   7.062
_cell_length_c   6.273
_cell_angle_alpha   77.400
_cell_angle_beta   81.083
_cell_angle_gamma   69.357
_symmetry_Int_Tables_number   1
_cell_volume   259.002
_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
  Zn  Zn0  1  0.285  0.198  0.934  1.0
  Zn  Zn1  1  0.717  0.799  0.069  1.0
  Co  Co2  1  0.907  0.209  0.334  1.0
  Co  Co3  1  0.093  0.802  0.670  1.0
  P  P4  1  0.208  0.770  0.166  1.0
  P  P5  1  0.790  0.231  0.837  1.0
  P  P6  1  0.646  0.675  0.602  1.0
  P  P7  1  0.355  0.323  0.397  1.0
  O  O8  1  0.630  0.452  0.739  1.0
  O  O9  1  0.364  0.550  0.269  1.0
  O  O10  1  0.066  0.745  0.003  1.0
  O  O11  1  0.935  0.253  0.998  1.0
  O  O12  1  0.246  0.354  0.628  1.0
  O  O13  1  0.758  0.632  0.374  1.0
  O  O14  1  0.597  0.191  0.383  1.0
  O  O15  1  0.405  0.811  0.605  1.0
  O  O16  1  0.628  0.116  0.950  1.0
  O  O17  1  0.375  0.880  0.049  1.0
  O  O18  1  0.943  0.126  0.654  1.0
  O  O19  1  0.053  0.881  0.345  1.0
  O  O20  1  0.210  0.269  0.258  1.0
  O  O21  1  0.790  0.732  0.737  1.0
[/CIF]
.