The crystal structure described by LiCoP2O7 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form distorted LiO4 trigonal pyramids that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  a cornercorner with one Co(1)O5 trigonal bipyramid, and  an edgeedge with one Co(1)O5 trigonal bipyramid. Co(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form CoO5 trigonal bipyramids that share corners with two equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra,  a cornercorner with one Li(1)O4 trigonal pyramid, and  an edgeedge with one Li(1)O4 trigonal pyramid. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(5), one O(6), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent Co(1)O5 trigonal bipyramids, and corners with two equivalent Li(1)O4 trigonal pyramids. In the second P site, P(2) is bonded to one O(1), one O(3), one O(4), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra, corners with three equivalent Co(1)O5 trigonal bipyramids, and corners with two equivalent Li(1)O4 trigonal pyramids. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(1), one Co(1), and one P(2) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Li(1), one Co(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Li(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 Co(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Co(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Li(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 CIF card [CIF]
data_LiCoP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.479
_cell_length_b   5.089
_cell_length_c   9.686
_cell_angle_alpha   59.605
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   573.109
_cell_formula_units_Z   4
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
  Li  Li0  1  0.368  0.048  0.354  1.0
  Li  Li1  1  0.132  0.048  0.854  1.0
  Li  Li2  1  0.632  0.952  0.646  1.0
  Li  Li3  1  0.868  0.952  0.146  1.0
  Co  Co4  1  0.672  0.034  0.262  1.0
  Co  Co5  1  0.328  0.966  0.738  1.0
  Co  Co6  1  0.828  0.034  0.762  1.0
  Co  Co7  1  0.172  0.966  0.238  1.0
  P  P8  1  0.963  0.522  0.777  1.0
  P  P9  1  0.463  0.478  0.723  1.0
  P  P10  1  0.037  0.478  0.223  1.0
  P  P11  1  0.680  0.721  0.041  1.0
  P  P12  1  0.180  0.279  0.459  1.0
  P  P13  1  0.820  0.721  0.541  1.0
  P  P14  1  0.320  0.279  0.959  1.0
  P  P15  1  0.537  0.522  0.277  1.0
  O  O16  1  0.231  0.169  0.357  1.0
  O  O17  1  0.113  0.743  0.135  1.0
  O  O18  1  0.807  0.937  0.361  1.0
  O  O19  1  0.713  0.399  0.081  1.0
  O  O20  1  0.441  0.221  0.683  1.0
  O  O21  1  0.069  0.426  0.797  1.0
  O  O22  1  0.431  0.426  0.297  1.0
  O  O23  1  0.307  0.063  0.139  1.0
  O  O24  1  0.059  0.221  0.183  1.0
  O  O25  1  0.569  0.574  0.703  1.0
  O  O26  1  0.269  0.169  0.857  1.0
  O  O27  1  0.559  0.779  0.317  1.0
  O  O28  1  0.387  0.743  0.635  1.0
  O  O29  1  0.941  0.779  0.817  1.0
  O  O30  1  0.064  0.313  0.416  1.0
  O  O31  1  0.436  0.313  0.916  1.0
  O  O32  1  0.564  0.687  0.084  1.0
  O  O33  1  0.287  0.601  0.919  1.0
  O  O34  1  0.931  0.574  0.203  1.0
  O  O35  1  0.693  0.937  0.861  1.0
  O  O36  1  0.887  0.257  0.865  1.0
  O  O37  1  0.613  0.257  0.365  1.0
  O  O38  1  0.936  0.687  0.584  1.0
  O  O39  1  0.787  0.399  0.581  1.0
  O  O40  1  0.731  0.831  0.143  1.0
  O  O41  1  0.193  0.063  0.639  1.0
  O  O42  1  0.213  0.601  0.419  1.0
  O  O43  1  0.769  0.831  0.643  1.0
[/CIF]
.
The crystal structure described by LiCoP2O7 crystallizes in the monoclinic P2_1/c space group. Li(1) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form distorted LiO4 trigonal pyramids that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  a cornercorner with one Co(1)O5 trigonal bipyramid, and  an edgeedge with one Co(1)O5 trigonal bipyramid. Co(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form CoO5 trigonal bipyramids that share corners with two equivalent P(1)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra,  a cornercorner with one Li(1)O4 trigonal pyramid, and  an edgeedge with one Li(1)O4 trigonal pyramid. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(5), one O(6), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent Co(1)O5 trigonal bipyramids, and corners with two equivalent Li(1)O4 trigonal pyramids. In the second P site, P(2) is bonded to one O(1), one O(3), one O(4), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra, corners with three equivalent Co(1)O5 trigonal bipyramids, and corners with two equivalent Li(1)O4 trigonal pyramids. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Li(1), one Co(1), and one P(2) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Li(1), one Co(1), and one P(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Li(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 Co(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Co(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Li(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 CIF card [CIF]
data_LiCoP2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.479
_cell_length_b   5.089
_cell_length_c   9.686
_cell_angle_alpha   59.605
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   573.109
_cell_formula_units_Z   4
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
  Li  Li0  1  0.368  0.048  0.354  1.0
  Li  Li1  1  0.132  0.048  0.854  1.0
  Li  Li2  1  0.632  0.952  0.646  1.0
  Li  Li3  1  0.868  0.952  0.146  1.0
  Co  Co4  1  0.672  0.034  0.262  1.0
  Co  Co5  1  0.328  0.966  0.738  1.0
  Co  Co6  1  0.828  0.034  0.762  1.0
  Co  Co7  1  0.172  0.966  0.238  1.0
  P  P8  1  0.963  0.522  0.777  1.0
  P  P9  1  0.463  0.478  0.723  1.0
  P  P10  1  0.037  0.478  0.223  1.0
  P  P11  1  0.680  0.721  0.041  1.0
  P  P12  1  0.180  0.279  0.459  1.0
  P  P13  1  0.820  0.721  0.541  1.0
  P  P14  1  0.320  0.279  0.959  1.0
  P  P15  1  0.537  0.522  0.277  1.0
  O  O16  1  0.231  0.169  0.357  1.0
  O  O17  1  0.113  0.743  0.135  1.0
  O  O18  1  0.807  0.937  0.361  1.0
  O  O19  1  0.713  0.399  0.081  1.0
  O  O20  1  0.441  0.221  0.683  1.0
  O  O21  1  0.069  0.426  0.797  1.0
  O  O22  1  0.431  0.426  0.297  1.0
  O  O23  1  0.307  0.063  0.139  1.0
  O  O24  1  0.059  0.221  0.183  1.0
  O  O25  1  0.569  0.574  0.703  1.0
  O  O26  1  0.269  0.169  0.857  1.0
  O  O27  1  0.559  0.779  0.317  1.0
  O  O28  1  0.387  0.743  0.635  1.0
  O  O29  1  0.941  0.779  0.817  1.0
  O  O30  1  0.064  0.313  0.416  1.0
  O  O31  1  0.436  0.313  0.916  1.0
  O  O32  1  0.564  0.687  0.084  1.0
  O  O33  1  0.287  0.601  0.919  1.0
  O  O34  1  0.931  0.574  0.203  1.0
  O  O35  1  0.693  0.937  0.861  1.0
  O  O36  1  0.887  0.257  0.865  1.0
  O  O37  1  0.613  0.257  0.365  1.0
  O  O38  1  0.936  0.687  0.584  1.0
  O  O39  1  0.787  0.399  0.581  1.0
  O  O40  1  0.731  0.831  0.143  1.0
  O  O41  1  0.193  0.063  0.639  1.0
  O  O42  1  0.213  0.601  0.419  1.0
  O  O43  1  0.769  0.831  0.643  1.0
[/CIF]
.