The crystal structure described by CeZr7O16 crystallizes in the monoclinic Cm space group. Ce(1) is bonded in a body-centered cubic geometry to one O(1), one O(11), one O(12), one O(2), two equivalent O(4), and two equivalent O(5) atoms. There are five inequivalent Zr sites. In the first Zr site, Zr(1) is bonded in a distorted body-centered cubic geometry to one O(1), one O(11), one O(3), one O(4), one O(5), one O(6), one O(8), and one O(9) atom. In the second Zr site, Zr(2) is bonded in a distorted body-centered cubic geometry to one O(1), one O(10), one O(2), one O(9), two equivalent O(3), and two equivalent O(6) atoms. In the third Zr site, Zr(3) is bonded in a distorted body-centered cubic geometry to one O(10), one O(7), one O(8), one O(9), two equivalent O(4), and two equivalent O(5) atoms. In the fourth Zr site, Zr(4) is bonded in a distorted body-centered cubic geometry to one O(10), one O(12), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. In the fifth Zr site, Zr(5) is bonded in a distorted body-centered cubic geometry to one O(11), one O(12), one O(7), one O(8), two equivalent O(3), and two equivalent O(6) atoms. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Ce(1), one Zr(2), and two equivalent Zr(1) atoms to form OCeZr3 tetrahedra that share  a cornercorner with one O(11)CeZr3 tetrahedra,  a cornercorner with one O(12)CeZr3 tetrahedra,  a cornercorner with one O(10)Zr4 tetrahedra, corners with two equivalent O(8)Zr4 tetrahedra, corners with three equivalent O(9)Zr4 tetrahedra, corners with four equivalent O(5)CeZr3 tetrahedra, corners with four equivalent O(6)Zr4 tetrahedra,  an edgeedge with one O(11)CeZr3 tetrahedra,  an edgeedge with one O(2)CeZr3 tetrahedra, edges with two equivalent O(4)CeZr3 tetrahedra, and edges with two equivalent O(3)Zr4 tetrahedra. In the second O site, O(2) is bonded to one Ce(1), one Zr(2), and two equivalent Zr(4) atoms to form distorted OCeZr3 tetrahedra that share  a cornercorner with one O(11)CeZr3 tetrahedra,  a cornercorner with one O(10)Zr4 tetrahedra,  a cornercorner with one O(9)Zr4 tetrahedra, corners with two equivalent O(7)Zr4 tetrahedra, corners with three equivalent O(12)CeZr3 tetrahedra, corners with four equivalent O(4)CeZr3 tetrahedra, corners with four equivalent O(3)Zr4 tetrahedra,  an edgeedge with one O(1)CeZr3 tetrahedra,  an edgeedge with one O(10)Zr4 tetrahedra, edges with two equivalent O(5)CeZr3 tetrahedra, and edges with two equivalent O(6)Zr4 tetrahedra. In the third O site, O(3) is bonded to one Zr(1), one Zr(2), one Zr(4), and one Zr(5) atom to form distorted OZr4 tetrahedra that share corners with two equivalent O(11)CeZr3 tetrahedra, corners with two equivalent O(2)CeZr3 tetrahedra, corners with two equivalent O(4)CeZr3 tetrahedra, corners with two equivalent O(3)Zr4 tetrahedra, corners with two equivalent O(7)Zr4 tetrahedra, corners with two equivalent O(9)Zr4 tetrahedra, corners with four equivalent O(6)Zr4 tetrahedra,  an edgeedge with one O(1)CeZr3 tetrahedra,  an edgeedge with one O(12)CeZr3 tetrahedra,  an edgeedge with one O(5)CeZr3 tetrahedra,  an edgeedge with one O(10)Zr4 tetrahedra,  an edgeedge with one O(6)Zr4 tetrahedra, and  an edgeedge with one O(8)Zr4 tetrahedra. In the fourth O site, O(4) is bonded to one Ce(1), one Zr(1), one Zr(3), and one Zr(4) atom to form OCeZr3 tetrahedra that share corners with two equivalent O(11)CeZr3 tetrahedra, corners with two equivalent O(2)CeZr3 tetrahedra, corners with two equivalent O(4)CeZr3 tetrahedra, corners with two equivalent O(3)Zr4 tetrahedra, corners with two equivalent O(7)Zr4 tetrahedra, corners with two equivalent O(9)Zr4 tetrahedra, corners with four equivalent O(5)CeZr3 tetrahedra,  an edgeedge with one O(1)CeZr3 tetrahedra,  an edgeedge with one O(12)CeZr3 tetrahedra,  an edgeedge with one O(5)CeZr3 tetrahedra,  an edgeedge with one O(10)Zr4 tetrahedra,  an edgeedge with one O(6)Zr4 tetrahedra, and  an edgeedge with one O(8)Zr4 tetrahedra. In the fifth O site, O(5) is bonded to one Ce(1), one Zr(1), one Zr(3), and one Zr(4) atom to form OCeZr3 tetrahedra that share corners with two equivalent O(1)CeZr3 tetrahedra, corners with two equivalent O(12)CeZr3 tetrahedra, corners with two equivalent O(5)CeZr3 tetrahedra, corners with two equivalent O(10)Zr4 tetrahedra, corners with two equivalent O(6)Zr4 tetrahedra, corners with two equivalent O(8)Zr4 tetrahedra, corners with four equivalent O(4)CeZr3 tetrahedra,  an edgeedge with one O(11)CeZr3 tetrahedra,  an edgeedge with one O(2)CeZr3 tetrahedra,  an edgeedge with one O(4)CeZr3 tetrahedra,  an edgeedge with one O(3)Zr4 tetrahedra,  an edgeedge with one O(7)Zr4 tetrahedra, and  an edgeedge with one O(9)Zr4 tetrahedra. In the sixth O site, O(6) is bonded to one Zr(1), one Zr(2), one Zr(4), and one Zr(5) atom to form distorted OZr4 tetrahedra that share corners with two equivalent O(1)CeZr3 tetrahedra, corners with two equivalent O(12)CeZr3 tetrahedra, corners with two equivalent O(5)CeZr3 tetrahedra, corners with two equivalent O(10)Zr4 tetrahedra, corners with two equivalent O(6)Zr4 tetrahedra, corners with two equivalent O(8)Zr4 tetrahedra, corners with four equivalent O(3)Zr4 tetrahedra,  an edgeedge with one O(11)CeZr3 tetrahedra,  an edgeedge with one O(2)CeZr3 tetrahedra,  an edgeedge with one O(4)CeZr3 tetrahedra,  an edgeedge with one O(3)Zr4 tetrahedra,  an edgeedge with one O(7)Zr4 tetrahedra, and  an edgeedge with one O(9)Zr4 tetrahedra. In the seventh O site, O(7) is bonded to one Zr(3), one Zr(5), and two equivalent Zr(4) atoms to form distorted OZr4 tetrahedra that share  a cornercorner with one O(11)CeZr3 tetrahedra,  a cornercorner with one O(12)CeZr3 tetrahedra,  a cornercorner with one O(9)Zr4 tetrahedra, corners with two equivalent O(2)CeZr3 tetrahedra, corners with three equivalent O(10)Zr4 tetrahedra, corners with four equivalent O(4)CeZr3 tetrahedra, corners with four equivalent O(3)Zr4 tetrahedra,  an edgeedge with one O(12)CeZr3 tetrahedra,  an edgeedge with one O(8)Zr4 tetrahedra, edges with two equivalent O(5)CeZr3 tetrahedra, and edges with two equivalent O(6)Zr4 tetrahedra. In the eighth O site, O(8) is bonded to one Zr(3), one Zr(5), and two equivalent Zr(1) atoms to form distorted OZr4 tetrahedra that share  a cornercorner with one O(12)CeZr3 tetrahedra,  a cornercorner with one O(10)Zr4 tetrahedra,  a cornercorner with one O(9)Zr4 tetrahedra, corners with two equivalent O(1)CeZr3 tetrahedra, corners with three equivalent O(11)CeZr3 tetrahedra, corners with four equivalent O(5)CeZr3 tetrahedra, corners with four equivalent O(6)Zr4 tetrahedra,  an edgeedge with one O(7)Zr4 tetrahedra,  an edgeedge with one O(9)Zr4 tetrahedra, edges with two equivalent O(4)CeZr3 tetrahedra, and edges with two equivalent O(3)Zr4 tetrahedra. In the ninth O site, O(9) is bonded to one Zr(2), one Zr(3), and two equivalent Zr(1) atoms to form distorted OZr4 tetrahedra that share  a cornercorner with one O(2)CeZr3 tetrahedra,  a cornercorner with one O(7)Zr4 tetrahedra,  a cornercorner with one O(8)Zr4 tetrahedra, corners with two equivalent O(11)CeZr3 tetrahedra, corners with three equivalent O(1)CeZr3 tetrahedra, corners with four equivalent O(4)CeZr3 tetrahedra, corners with four equivalent O(3)Zr4 tetrahedra,  an edgeedge with one O(10)Zr4 tetrahedra,  an edgeedge with one O(8)Zr4 tetrahedra, edges with two equivalent O(5)CeZr3 tetrahedra, and edges with two equivalent O(6)Zr4 tetrahedra. In the tenth O site, O(10) is bonded to one Zr(2), one Zr(3), and two equivalent Zr(4) atoms to form distorted OZr4 tetrahedra that share  a cornercorner with one O(1)CeZr3 tetrahedra,  a cornercorner with one O(2)CeZr3 tetrahedra,  a cornercorner with one O(8)Zr4 tetrahedra, corners with two equivalent O(12)CeZr3 tetrahedra, corners with three equivalent O(7)Zr4 tetrahedra, corners with four equivalent O(5)CeZr3 tetrahedra, corners with four equivalent O(6)Zr4 tetrahedra,  an edgeedge with one O(2)CeZr3 tetrahedra,  an edgeedge with one O(9)Zr4 tetrahedra, edges with two equivalent O(4)CeZr3 tetrahedra, and edges with two equivalent O(3)Zr4 tetrahedra. In the eleventh O site, O(11) is bonded to one Ce(1), one Zr(5), and two equivalent Zr(1) atoms to form OCeZr3 tetrahedra that share  a cornercorner with one O(1)CeZr3 tetrahedra,  a cornercorner with one O(2)CeZr3 tetrahedra,  a cornercorner with one O(7)Zr4 tetrahedra, corners with two equivalent O(9)Zr4 tetrahedra, corners with three equivalent O(8)Zr4 tetrahedra, corners with four equivalent O(4)CeZr3 tetrahedra, corners with four equivalent O(3)Zr4 tetrahedra,  an edgeedge with one O(1)CeZr3 tetrahedra,  an edgeedge with one O(12)CeZr3 tetrahedra, edges with two equivalent O(5)CeZr3 tetrahedra, and edges with two equivalent O(6)Zr4 tetrahedra. In the twelfth O site, O(12) is bonded to one Ce(1), one Zr(5), and two equivalent Zr(4) atoms to form OCeZr3 tetrahedra that share  a cornercorner with one O(1)CeZr3 tetrahedra,  a cornercorner with one O(7)Zr4 tetrahedra,  a cornercorner with one O(8)Zr4 tetrahedra, corners with two equivalent O(10)Zr4 tetrahedra, corners with three equivalent O(2)CeZr3 tetrahedra, corners with four equivalent O(5)CeZr3 tetrahedra, corners with four equivalent O(6)Zr4 tetrahedra,  an edgeedge with one O(11)CeZr3 tetrahedra,  an edgeedge with one O(7)Zr4 tetrahedra, edges with two equivalent O(4)CeZr3 tetrahedra, and edges with two equivalent O(3)Zr4 tetrahedra. is represented by the CIF file [CIF]
data_CeZr7O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.432
_cell_length_b   7.432
_cell_length_c   6.463
_cell_angle_alpha   72.021
_cell_angle_beta   72.021
_cell_angle_gamma   59.173
_symmetry_Int_Tables_number   1
_cell_volume   286.586
_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
  Ce  Ce0  1  0.000  0.000  0.999  1.0
  Zr  Zr1  1  0.252  0.750  0.498  1.0
  Zr  Zr2  1  0.252  0.252  0.498  1.0
  Zr  Zr3  1  0.498  0.498  0.998  1.0
  Zr  Zr4  1  0.750  0.252  0.498  1.0
  Zr  Zr5  1  0.502  0.996  0.002  1.0
  Zr  Zr6  1  0.749  0.749  0.504  1.0
  Zr  Zr7  1  0.996  0.502  0.002  1.0
  O  O8  1  0.077  0.077  0.636  1.0
  O  O9  1  0.202  0.202  0.902  1.0
  O  O10  1  0.423  0.926  0.349  1.0
  O  O11  1  0.179  0.670  0.849  1.0
  O  O12  1  0.317  0.789  0.106  1.0
  O  O13  1  0.049  0.549  0.598  1.0
  O  O14  1  0.706  0.706  0.889  1.0
  O  O15  1  0.575  0.575  0.650  1.0
  O  O16  1  0.447  0.447  0.411  1.0
  O  O17  1  0.327  0.327  0.153  1.0
  O  O18  1  0.926  0.423  0.349  1.0
  O  O19  1  0.549  0.049  0.598  1.0
  O  O20  1  0.670  0.179  0.849  1.0
  O  O21  1  0.789  0.317  0.106  1.0
  O  O22  1  0.948  0.948  0.403  1.0
  O  O23  1  0.817  0.817  0.153  1.0
[/CIF]
.
The crystal structure described by CeZr7O16 crystallizes in the monoclinic Cm space group. Ce(1) is bonded in a body-centered cubic geometry to one O(1), one O(11), one O(12), one O(2), two equivalent O(4), and two equivalent O(5) atoms. There are five inequivalent Zr sites. In the first Zr site, Zr(1) is bonded in a distorted body-centered cubic geometry to one O(1), one O(11), one O(3), one O(4), one O(5), one O(6), one O(8), and one O(9) atom. In the second Zr site, Zr(2) is bonded in a distorted body-centered cubic geometry to one O(1), one O(10), one O(2), one O(9), two equivalent O(3), and two equivalent O(6) atoms. In the third Zr site, Zr(3) is bonded in a distorted body-centered cubic geometry to one O(10), one O(7), one O(8), one O(9), two equivalent O(4), and two equivalent O(5) atoms. In the fourth Zr site, Zr(4) is bonded in a distorted body-centered cubic geometry to one O(10), one O(12), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. In the fifth Zr site, Zr(5) is bonded in a distorted body-centered cubic geometry to one O(11), one O(12), one O(7), one O(8), two equivalent O(3), and two equivalent O(6) atoms. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Ce(1), one Zr(2), and two equivalent Zr(1) atoms to form OCeZr3 tetrahedra that share  a cornercorner with one O(11)CeZr3 tetrahedra,  a cornercorner with one O(12)CeZr3 tetrahedra,  a cornercorner with one O(10)Zr4 tetrahedra, corners with two equivalent O(8)Zr4 tetrahedra, corners with three equivalent O(9)Zr4 tetrahedra, corners with four equivalent O(5)CeZr3 tetrahedra, corners with four equivalent O(6)Zr4 tetrahedra,  an edgeedge with one O(11)CeZr3 tetrahedra,  an edgeedge with one O(2)CeZr3 tetrahedra, edges with two equivalent O(4)CeZr3 tetrahedra, and edges with two equivalent O(3)Zr4 tetrahedra. In the second O site, O(2) is bonded to one Ce(1), one Zr(2), and two equivalent Zr(4) atoms to form distorted OCeZr3 tetrahedra that share  a cornercorner with one O(11)CeZr3 tetrahedra,  a cornercorner with one O(10)Zr4 tetrahedra,  a cornercorner with one O(9)Zr4 tetrahedra, corners with two equivalent O(7)Zr4 tetrahedra, corners with three equivalent O(12)CeZr3 tetrahedra, corners with four equivalent O(4)CeZr3 tetrahedra, corners with four equivalent O(3)Zr4 tetrahedra,  an edgeedge with one O(1)CeZr3 tetrahedra,  an edgeedge with one O(10)Zr4 tetrahedra, edges with two equivalent O(5)CeZr3 tetrahedra, and edges with two equivalent O(6)Zr4 tetrahedra. In the third O site, O(3) is bonded to one Zr(1), one Zr(2), one Zr(4), and one Zr(5) atom to form distorted OZr4 tetrahedra that share corners with two equivalent O(11)CeZr3 tetrahedra, corners with two equivalent O(2)CeZr3 tetrahedra, corners with two equivalent O(4)CeZr3 tetrahedra, corners with two equivalent O(3)Zr4 tetrahedra, corners with two equivalent O(7)Zr4 tetrahedra, corners with two equivalent O(9)Zr4 tetrahedra, corners with four equivalent O(6)Zr4 tetrahedra,  an edgeedge with one O(1)CeZr3 tetrahedra,  an edgeedge with one O(12)CeZr3 tetrahedra,  an edgeedge with one O(5)CeZr3 tetrahedra,  an edgeedge with one O(10)Zr4 tetrahedra,  an edgeedge with one O(6)Zr4 tetrahedra, and  an edgeedge with one O(8)Zr4 tetrahedra. In the fourth O site, O(4) is bonded to one Ce(1), one Zr(1), one Zr(3), and one Zr(4) atom to form OCeZr3 tetrahedra that share corners with two equivalent O(11)CeZr3 tetrahedra, corners with two equivalent O(2)CeZr3 tetrahedra, corners with two equivalent O(4)CeZr3 tetrahedra, corners with two equivalent O(3)Zr4 tetrahedra, corners with two equivalent O(7)Zr4 tetrahedra, corners with two equivalent O(9)Zr4 tetrahedra, corners with four equivalent O(5)CeZr3 tetrahedra,  an edgeedge with one O(1)CeZr3 tetrahedra,  an edgeedge with one O(12)CeZr3 tetrahedra,  an edgeedge with one O(5)CeZr3 tetrahedra,  an edgeedge with one O(10)Zr4 tetrahedra,  an edgeedge with one O(6)Zr4 tetrahedra, and  an edgeedge with one O(8)Zr4 tetrahedra. In the fifth O site, O(5) is bonded to one Ce(1), one Zr(1), one Zr(3), and one Zr(4) atom to form OCeZr3 tetrahedra that share corners with two equivalent O(1)CeZr3 tetrahedra, corners with two equivalent O(12)CeZr3 tetrahedra, corners with two equivalent O(5)CeZr3 tetrahedra, corners with two equivalent O(10)Zr4 tetrahedra, corners with two equivalent O(6)Zr4 tetrahedra, corners with two equivalent O(8)Zr4 tetrahedra, corners with four equivalent O(4)CeZr3 tetrahedra,  an edgeedge with one O(11)CeZr3 tetrahedra,  an edgeedge with one O(2)CeZr3 tetrahedra,  an edgeedge with one O(4)CeZr3 tetrahedra,  an edgeedge with one O(3)Zr4 tetrahedra,  an edgeedge with one O(7)Zr4 tetrahedra, and  an edgeedge with one O(9)Zr4 tetrahedra. In the sixth O site, O(6) is bonded to one Zr(1), one Zr(2), one Zr(4), and one Zr(5) atom to form distorted OZr4 tetrahedra that share corners with two equivalent O(1)CeZr3 tetrahedra, corners with two equivalent O(12)CeZr3 tetrahedra, corners with two equivalent O(5)CeZr3 tetrahedra, corners with two equivalent O(10)Zr4 tetrahedra, corners with two equivalent O(6)Zr4 tetrahedra, corners with two equivalent O(8)Zr4 tetrahedra, corners with four equivalent O(3)Zr4 tetrahedra,  an edgeedge with one O(11)CeZr3 tetrahedra,  an edgeedge with one O(2)CeZr3 tetrahedra,  an edgeedge with one O(4)CeZr3 tetrahedra,  an edgeedge with one O(3)Zr4 tetrahedra,  an edgeedge with one O(7)Zr4 tetrahedra, and  an edgeedge with one O(9)Zr4 tetrahedra. In the seventh O site, O(7) is bonded to one Zr(3), one Zr(5), and two equivalent Zr(4) atoms to form distorted OZr4 tetrahedra that share  a cornercorner with one O(11)CeZr3 tetrahedra,  a cornercorner with one O(12)CeZr3 tetrahedra,  a cornercorner with one O(9)Zr4 tetrahedra, corners with two equivalent O(2)CeZr3 tetrahedra, corners with three equivalent O(10)Zr4 tetrahedra, corners with four equivalent O(4)CeZr3 tetrahedra, corners with four equivalent O(3)Zr4 tetrahedra,  an edgeedge with one O(12)CeZr3 tetrahedra,  an edgeedge with one O(8)Zr4 tetrahedra, edges with two equivalent O(5)CeZr3 tetrahedra, and edges with two equivalent O(6)Zr4 tetrahedra. In the eighth O site, O(8) is bonded to one Zr(3), one Zr(5), and two equivalent Zr(1) atoms to form distorted OZr4 tetrahedra that share  a cornercorner with one O(12)CeZr3 tetrahedra,  a cornercorner with one O(10)Zr4 tetrahedra,  a cornercorner with one O(9)Zr4 tetrahedra, corners with two equivalent O(1)CeZr3 tetrahedra, corners with three equivalent O(11)CeZr3 tetrahedra, corners with four equivalent O(5)CeZr3 tetrahedra, corners with four equivalent O(6)Zr4 tetrahedra,  an edgeedge with one O(7)Zr4 tetrahedra,  an edgeedge with one O(9)Zr4 tetrahedra, edges with two equivalent O(4)CeZr3 tetrahedra, and edges with two equivalent O(3)Zr4 tetrahedra. In the ninth O site, O(9) is bonded to one Zr(2), one Zr(3), and two equivalent Zr(1) atoms to form distorted OZr4 tetrahedra that share  a cornercorner with one O(2)CeZr3 tetrahedra,  a cornercorner with one O(7)Zr4 tetrahedra,  a cornercorner with one O(8)Zr4 tetrahedra, corners with two equivalent O(11)CeZr3 tetrahedra, corners with three equivalent O(1)CeZr3 tetrahedra, corners with four equivalent O(4)CeZr3 tetrahedra, corners with four equivalent O(3)Zr4 tetrahedra,  an edgeedge with one O(10)Zr4 tetrahedra,  an edgeedge with one O(8)Zr4 tetrahedra, edges with two equivalent O(5)CeZr3 tetrahedra, and edges with two equivalent O(6)Zr4 tetrahedra. In the tenth O site, O(10) is bonded to one Zr(2), one Zr(3), and two equivalent Zr(4) atoms to form distorted OZr4 tetrahedra that share  a cornercorner with one O(1)CeZr3 tetrahedra,  a cornercorner with one O(2)CeZr3 tetrahedra,  a cornercorner with one O(8)Zr4 tetrahedra, corners with two equivalent O(12)CeZr3 tetrahedra, corners with three equivalent O(7)Zr4 tetrahedra, corners with four equivalent O(5)CeZr3 tetrahedra, corners with four equivalent O(6)Zr4 tetrahedra,  an edgeedge with one O(2)CeZr3 tetrahedra,  an edgeedge with one O(9)Zr4 tetrahedra, edges with two equivalent O(4)CeZr3 tetrahedra, and edges with two equivalent O(3)Zr4 tetrahedra. In the eleventh O site, O(11) is bonded to one Ce(1), one Zr(5), and two equivalent Zr(1) atoms to form OCeZr3 tetrahedra that share  a cornercorner with one O(1)CeZr3 tetrahedra,  a cornercorner with one O(2)CeZr3 tetrahedra,  a cornercorner with one O(7)Zr4 tetrahedra, corners with two equivalent O(9)Zr4 tetrahedra, corners with three equivalent O(8)Zr4 tetrahedra, corners with four equivalent O(4)CeZr3 tetrahedra, corners with four equivalent O(3)Zr4 tetrahedra,  an edgeedge with one O(1)CeZr3 tetrahedra,  an edgeedge with one O(12)CeZr3 tetrahedra, edges with two equivalent O(5)CeZr3 tetrahedra, and edges with two equivalent O(6)Zr4 tetrahedra. In the twelfth O site, O(12) is bonded to one Ce(1), one Zr(5), and two equivalent Zr(4) atoms to form OCeZr3 tetrahedra that share  a cornercorner with one O(1)CeZr3 tetrahedra,  a cornercorner with one O(7)Zr4 tetrahedra,  a cornercorner with one O(8)Zr4 tetrahedra, corners with two equivalent O(10)Zr4 tetrahedra, corners with three equivalent O(2)CeZr3 tetrahedra, corners with four equivalent O(5)CeZr3 tetrahedra, corners with four equivalent O(6)Zr4 tetrahedra,  an edgeedge with one O(11)CeZr3 tetrahedra,  an edgeedge with one O(7)Zr4 tetrahedra, edges with two equivalent O(4)CeZr3 tetrahedra, and edges with two equivalent O(3)Zr4 tetrahedra. is represented by the CIF file [CIF]
data_CeZr7O16
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.432
_cell_length_b   7.432
_cell_length_c   6.463
_cell_angle_alpha   72.021
_cell_angle_beta   72.021
_cell_angle_gamma   59.173
_symmetry_Int_Tables_number   1
_cell_volume   286.586
_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
  Ce  Ce0  1  0.000  0.000  0.999  1.0
  Zr  Zr1  1  0.252  0.750  0.498  1.0
  Zr  Zr2  1  0.252  0.252  0.498  1.0
  Zr  Zr3  1  0.498  0.498  0.998  1.0
  Zr  Zr4  1  0.750  0.252  0.498  1.0
  Zr  Zr5  1  0.502  0.996  0.002  1.0
  Zr  Zr6  1  0.749  0.749  0.504  1.0
  Zr  Zr7  1  0.996  0.502  0.002  1.0
  O  O8  1  0.077  0.077  0.636  1.0
  O  O9  1  0.202  0.202  0.902  1.0
  O  O10  1  0.423  0.926  0.349  1.0
  O  O11  1  0.179  0.670  0.849  1.0
  O  O12  1  0.317  0.789  0.106  1.0
  O  O13  1  0.049  0.549  0.598  1.0
  O  O14  1  0.706  0.706  0.889  1.0
  O  O15  1  0.575  0.575  0.650  1.0
  O  O16  1  0.447  0.447  0.411  1.0
  O  O17  1  0.327  0.327  0.153  1.0
  O  O18  1  0.926  0.423  0.349  1.0
  O  O19  1  0.549  0.049  0.598  1.0
  O  O20  1  0.670  0.179  0.849  1.0
  O  O21  1  0.789  0.317  0.106  1.0
  O  O22  1  0.948  0.948  0.403  1.0
  O  O23  1  0.817  0.817  0.153  1.0
[/CIF]
.