The crystal structure described by Ce2Cu7Zn3 crystallizes in the monoclinic P2/m space group. Ce(1) is bonded in a 18-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), two equivalent Cu(3), three equivalent Cu(4), three equivalent Cu(5), two equivalent Zn(2), and four equivalent Zn(1) atoms. There are five inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to four equivalent Ce(1), two equivalent Cu(3), four equivalent Cu(5), and two equivalent Zn(1) atoms to form distorted CuCe4Zn2Cu6 cuboctahedra that share corners with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, corners with four equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, corners with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, corners with six equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, edges with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, edges with four equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, edges with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, faces with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, and faces with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra. In the second Cu site, Cu(2) is bonded to four equivalent Ce(1), four equivalent Cu(4), two equivalent Zn(1), and two equivalent Zn(2) atoms to form distorted CuCe4Zn4Cu4 cuboctahedra that share corners with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, corners with four equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, corners with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, corners with six equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, edges with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, edges with four equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, edges with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, faces with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, faces with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, and faces with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra. In the third Cu site, Cu(3) is bonded to four equivalent Ce(1), two equivalent Cu(1), four equivalent Cu(5), and two equivalent Zn(1) atoms to form distorted CuCe4Zn2Cu6 cuboctahedra that share corners with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, corners with four equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, corners with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, corners with six equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, edges with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, edges with four equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, edges with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, faces with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, and faces with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra. In the fourth Cu site, Cu(4) is bonded in a 9-coordinate geometry to three equivalent Ce(1), two equivalent Cu(2), two equivalent Zn(1), and two equivalent Zn(2) atoms. In the fifth Cu site, Cu(5) is bonded in a 9-coordinate geometry to three equivalent Ce(1), two equivalent Cu(1), two equivalent Cu(3), and two equivalent Zn(1) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to four equivalent Ce(1), one Cu(1), one Cu(2), one Cu(3), two equivalent Cu(4), two equivalent Cu(5), and one Zn(2) atom to form distorted ZnCe4ZnCu7 cuboctahedra that share corners with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, corners with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, corners with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, corners with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, corners with eight equivalent Zn(1)Ce4ZnCu7 cuboctahedra, edges with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, edges with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, edges with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, edges with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, edges with two equivalent Zn(1)Ce4ZnCu7 cuboctahedra, faces with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, faces with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, and faces with two equivalent Zn(1)Ce4ZnCu7 cuboctahedra. In the second Zn site, Zn(2) is bonded to four equivalent Ce(1), two equivalent Cu(2), four equivalent Cu(4), and two equivalent Zn(1) atoms to form distorted ZnCe4Zn2Cu6 cuboctahedra that share corners with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, corners with four equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, corners with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, corners with six equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, edges with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, edges with four equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, edges with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, faces with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, faces with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, and faces with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra. is represented by the CIF file [CIF]
data_Ce2Zn3Cu7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.121
_cell_length_b   5.149
_cell_length_c   8.953
_cell_angle_alpha   89.649
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   189.970
_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  0.250  0.747  1.0
  Ce  Ce1  1  0.000  0.750  0.253  1.0
  Zn  Zn2  1  0.500  0.255  0.253  1.0
  Zn  Zn3  1  0.500  0.745  0.747  1.0
  Zn  Zn4  1  0.500  0.000  0.000  1.0
  Cu  Cu5  1  0.500  0.500  0.500  1.0
  Cu  Cu6  1  0.500  0.500  0.000  1.0
  Cu  Cu7  1  0.500  0.000  0.500  1.0
  Cu  Cu8  1  0.000  0.256  0.081  1.0
  Cu  Cu9  1  0.000  0.752  0.580  1.0
  Cu  Cu10  1  0.000  0.744  0.919  1.0
  Cu  Cu11  1  0.000  0.248  0.420  1.0
[/CIF]
.
The crystal structure described by Ce2Cu7Zn3 crystallizes in the monoclinic P2/m space group. Ce(1) is bonded in a 18-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), two equivalent Cu(3), three equivalent Cu(4), three equivalent Cu(5), two equivalent Zn(2), and four equivalent Zn(1) atoms. There are five inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to four equivalent Ce(1), two equivalent Cu(3), four equivalent Cu(5), and two equivalent Zn(1) atoms to form distorted CuCe4Zn2Cu6 cuboctahedra that share corners with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, corners with four equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, corners with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, corners with six equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, edges with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, edges with four equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, edges with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, faces with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, and faces with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra. In the second Cu site, Cu(2) is bonded to four equivalent Ce(1), four equivalent Cu(4), two equivalent Zn(1), and two equivalent Zn(2) atoms to form distorted CuCe4Zn4Cu4 cuboctahedra that share corners with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, corners with four equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, corners with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, corners with six equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, edges with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, edges with four equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, edges with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, faces with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, faces with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, and faces with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra. In the third Cu site, Cu(3) is bonded to four equivalent Ce(1), two equivalent Cu(1), four equivalent Cu(5), and two equivalent Zn(1) atoms to form distorted CuCe4Zn2Cu6 cuboctahedra that share corners with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, corners with four equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, corners with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, corners with six equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, edges with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, edges with four equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, edges with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, faces with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, and faces with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra. In the fourth Cu site, Cu(4) is bonded in a 9-coordinate geometry to three equivalent Ce(1), two equivalent Cu(2), two equivalent Zn(1), and two equivalent Zn(2) atoms. In the fifth Cu site, Cu(5) is bonded in a 9-coordinate geometry to three equivalent Ce(1), two equivalent Cu(1), two equivalent Cu(3), and two equivalent Zn(1) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to four equivalent Ce(1), one Cu(1), one Cu(2), one Cu(3), two equivalent Cu(4), two equivalent Cu(5), and one Zn(2) atom to form distorted ZnCe4ZnCu7 cuboctahedra that share corners with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, corners with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, corners with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, corners with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, corners with eight equivalent Zn(1)Ce4ZnCu7 cuboctahedra, edges with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, edges with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, edges with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, edges with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, edges with two equivalent Zn(1)Ce4ZnCu7 cuboctahedra, faces with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, faces with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, and faces with two equivalent Zn(1)Ce4ZnCu7 cuboctahedra. In the second Zn site, Zn(2) is bonded to four equivalent Ce(1), two equivalent Cu(2), four equivalent Cu(4), and two equivalent Zn(1) atoms to form distorted ZnCe4Zn2Cu6 cuboctahedra that share corners with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, corners with four equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, corners with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, corners with six equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, edges with two equivalent Cu(1)Ce4Zn2Cu6 cuboctahedra, edges with four equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, edges with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra, faces with two equivalent Cu(3)Ce4Zn2Cu6 cuboctahedra, faces with two equivalent Cu(2)Ce4Zn4Cu4 cuboctahedra, faces with two equivalent Zn(2)Ce4Zn2Cu6 cuboctahedra, and faces with four equivalent Zn(1)Ce4ZnCu7 cuboctahedra. is represented by the CIF file [CIF]
data_Ce2Zn3Cu7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.121
_cell_length_b   5.149
_cell_length_c   8.953
_cell_angle_alpha   89.649
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   189.970
_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  0.250  0.747  1.0
  Ce  Ce1  1  0.000  0.750  0.253  1.0
  Zn  Zn2  1  0.500  0.255  0.253  1.0
  Zn  Zn3  1  0.500  0.745  0.747  1.0
  Zn  Zn4  1  0.500  0.000  0.000  1.0
  Cu  Cu5  1  0.500  0.500  0.500  1.0
  Cu  Cu6  1  0.500  0.500  0.000  1.0
  Cu  Cu7  1  0.500  0.000  0.500  1.0
  Cu  Cu8  1  0.000  0.256  0.081  1.0
  Cu  Cu9  1  0.000  0.752  0.580  1.0
  Cu  Cu10  1  0.000  0.744  0.919  1.0
  Cu  Cu11  1  0.000  0.248  0.420  1.0
[/CIF]
.