The structure described by Cr5Cu2(PO4)6 crystallizes in the triclinic P-1 space group. There are three inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(12), one O(3), one O(4), one O(8), and two equivalent O(10) atoms to form CrO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra,  an edgeedge with one Cr(1)O6 octahedra, and  an edgeedge with one Cu(1)O5 trigonal bipyramid. In the second Cr site, Cr(2) is bonded to one O(11), one O(2), one O(6), one O(9), and two equivalent O(1) atoms to form CrO6 octahedra that share  a cornercorner with one Cr(3)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra,  an edgeedge with one Cr(2)O6 octahedra, and  an edgeedge with one Cu(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 62°. In the third Cr site, Cr(3) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(7) atoms to form CrO6 octahedra that share corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and corners with two equivalent Cu(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 62°. Cu(1) is bonded to one O(11), one O(3), one O(7), one O(8), and one O(9) atom to form distorted CuO5 trigonal bipyramids that share  a cornercorner with one Cr(3)O6 octahedra,  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 Cr(1)O6 octahedra, and  an edgeedge with one Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles are 59°. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(12), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Cr(2)O6 octahedra,  a cornercorner with one Cr(3)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, and corners with two equivalent Cu(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 26-57°. In the second P site, P(2) is bonded to one O(1), one O(10), one O(5), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Cr(3)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with three equivalent Cr(2)O6 octahedra, and  a cornercorner with one Cu(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 29-54°. In the third P site, P(3) is bonded to one O(11), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Cr(3)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, and corners with two equivalent Cu(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 34-60°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Cr(2) and one P(2) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Cr(2), one Cr(3), and one P(3) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Cr(1), one Cu(1), and one P(3) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Cr(1) and one P(3) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Cr(3) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Cr(2) and one P(1) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Cr(3), one Cu(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Cr(1), one Cu(1), and one P(1) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Cr(2), one Cu(1), and one P(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to two equivalent Cr(1) and one P(2) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Cr(2), one Cu(1), and one P(3) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Cr(1) and one P(1) atom. is represented by the CIF card [CIF]
data_Cr5Cu2(PO4)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.334
_cell_length_b   8.021
_cell_length_c   9.364
_cell_angle_alpha   106.031
_cell_angle_beta   108.022
_cell_angle_gamma   101.521
_symmetry_Int_Tables_number   1
_cell_volume   413.076
_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
  Cr  Cr0  1  0.050  0.214  0.022  1.0
  Cr  Cr1  1  0.950  0.786  0.978  1.0
  Cr  Cr2  1  0.620  0.039  0.390  1.0
  Cr  Cr3  1  0.380  0.961  0.610  1.0
  Cr  Cr4  1  0.000  0.500  0.500  1.0
  Cu  Cu5  1  0.296  0.327  0.798  1.0
  Cu  Cu6  1  0.704  0.673  0.202  1.0
  P  P7  1  0.608  0.261  0.136  1.0
  P  P8  1  0.392  0.739  0.864  1.0
  P  P9  1  0.096  0.101  0.336  1.0
  P  P10  1  0.904  0.899  0.664  1.0
  P  P11  1  0.220  0.644  0.264  1.0
  P  P12  1  0.780  0.356  0.736  1.0
  O  O13  1  0.316  0.047  0.420  1.0
  O  O14  1  0.684  0.953  0.580  1.0
  O  O15  1  0.215  0.693  0.441  1.0
  O  O16  1  0.785  0.307  0.559  1.0
  O  O17  1  0.010  0.687  0.158  1.0
  O  O18  1  0.990  0.313  0.842  1.0
  O  O19  1  0.205  0.446  0.202  1.0
  O  O20  1  0.795  0.554  0.798  1.0
  O  O21  1  0.126  0.300  0.417  1.0
  O  O22  1  0.874  0.700  0.583  1.0
  O  O23  1  0.553  0.130  0.219  1.0
  O  O24  1  0.447  0.870  0.781  1.0
  O  O25  1  0.741  0.458  0.274  1.0
  O  O26  1  0.259  0.542  0.726  1.0
  O  O27  1  0.372  0.257  0.013  1.0
  O  O28  1  0.628  0.743  0.987  1.0
  O  O29  1  0.117  0.025  0.657  1.0
  O  O30  1  0.883  0.975  0.343  1.0
  O  O31  1  0.074  0.052  0.156  1.0
  O  O32  1  0.926  0.948  0.844  1.0
  O  O33  1  0.453  0.763  0.270  1.0
  O  O34  1  0.547  0.237  0.730  1.0
  O  O35  1  0.751  0.212  0.036  1.0
  O  O36  1  0.249  0.788  0.964  1.0
[/CIF]
.
The structure described by Cr5Cu2(PO4)6 crystallizes in the triclinic P-1 space group. There are three inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to one O(12), one O(3), one O(4), one O(8), and two equivalent O(10) atoms to form CrO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra,  an edgeedge with one Cr(1)O6 octahedra, and  an edgeedge with one Cu(1)O5 trigonal bipyramid. In the second Cr site, Cr(2) is bonded to one O(11), one O(2), one O(6), one O(9), and two equivalent O(1) atoms to form CrO6 octahedra that share  a cornercorner with one Cr(3)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, corners with three equivalent P(2)O4 tetrahedra,  an edgeedge with one Cr(2)O6 octahedra, and  an edgeedge with one Cu(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 62°. In the third Cr site, Cr(3) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(7) atoms to form CrO6 octahedra that share corners with two equivalent Cr(2)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and corners with two equivalent Cu(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 62°. Cu(1) is bonded to one O(11), one O(3), one O(7), one O(8), and one O(9) atom to form distorted CuO5 trigonal bipyramids that share  a cornercorner with one Cr(3)O6 octahedra,  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 Cr(1)O6 octahedra, and  an edgeedge with one Cr(2)O6 octahedra. The corner-sharing octahedral tilt angles are 59°. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(12), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Cr(2)O6 octahedra,  a cornercorner with one Cr(3)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, and corners with two equivalent Cu(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 26-57°. In the second P site, P(2) is bonded to one O(1), one O(10), one O(5), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Cr(3)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with three equivalent Cr(2)O6 octahedra, and  a cornercorner with one Cu(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 29-54°. In the third P site, P(3) is bonded to one O(11), one O(2), one O(3), and one O(4) atom to form PO4 tetrahedra that share  a cornercorner with one Cr(3)O6 octahedra, corners with two equivalent Cr(1)O6 octahedra, corners with two equivalent Cr(2)O6 octahedra, and corners with two equivalent Cu(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 34-60°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Cr(2) and one P(2) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Cr(2), one Cr(3), and one P(3) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Cr(1), one Cu(1), and one P(3) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Cr(1) and one P(3) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Cr(3) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Cr(2) and one P(1) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Cr(3), one Cu(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Cr(1), one Cu(1), and one P(1) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Cr(2), one Cu(1), and one P(2) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to two equivalent Cr(1) and one P(2) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Cr(2), one Cu(1), and one P(3) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one Cr(1) and one P(1) atom. is represented by the CIF card [CIF]
data_Cr5Cu2(PO4)6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.334
_cell_length_b   8.021
_cell_length_c   9.364
_cell_angle_alpha   106.031
_cell_angle_beta   108.022
_cell_angle_gamma   101.521
_symmetry_Int_Tables_number   1
_cell_volume   413.076
_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
  Cr  Cr0  1  0.050  0.214  0.022  1.0
  Cr  Cr1  1  0.950  0.786  0.978  1.0
  Cr  Cr2  1  0.620  0.039  0.390  1.0
  Cr  Cr3  1  0.380  0.961  0.610  1.0
  Cr  Cr4  1  0.000  0.500  0.500  1.0
  Cu  Cu5  1  0.296  0.327  0.798  1.0
  Cu  Cu6  1  0.704  0.673  0.202  1.0
  P  P7  1  0.608  0.261  0.136  1.0
  P  P8  1  0.392  0.739  0.864  1.0
  P  P9  1  0.096  0.101  0.336  1.0
  P  P10  1  0.904  0.899  0.664  1.0
  P  P11  1  0.220  0.644  0.264  1.0
  P  P12  1  0.780  0.356  0.736  1.0
  O  O13  1  0.316  0.047  0.420  1.0
  O  O14  1  0.684  0.953  0.580  1.0
  O  O15  1  0.215  0.693  0.441  1.0
  O  O16  1  0.785  0.307  0.559  1.0
  O  O17  1  0.010  0.687  0.158  1.0
  O  O18  1  0.990  0.313  0.842  1.0
  O  O19  1  0.205  0.446  0.202  1.0
  O  O20  1  0.795  0.554  0.798  1.0
  O  O21  1  0.126  0.300  0.417  1.0
  O  O22  1  0.874  0.700  0.583  1.0
  O  O23  1  0.553  0.130  0.219  1.0
  O  O24  1  0.447  0.870  0.781  1.0
  O  O25  1  0.741  0.458  0.274  1.0
  O  O26  1  0.259  0.542  0.726  1.0
  O  O27  1  0.372  0.257  0.013  1.0
  O  O28  1  0.628  0.743  0.987  1.0
  O  O29  1  0.117  0.025  0.657  1.0
  O  O30  1  0.883  0.975  0.343  1.0
  O  O31  1  0.074  0.052  0.156  1.0
  O  O32  1  0.926  0.948  0.844  1.0
  O  O33  1  0.453  0.763  0.270  1.0
  O  O34  1  0.547  0.237  0.730  1.0
  O  O35  1  0.751  0.212  0.036  1.0
  O  O36  1  0.249  0.788  0.964  1.0
[/CIF]
.