The structure described by FeCu10Zn4(SnSe4)5 is Clathrate-derived structured and crystallizes in the monoclinic C2 space group. Fe(1) is bonded to two equivalent Se(10) and two equivalent Se(3) atoms to form FeSe4 tetrahedra that share corners with two equivalent Cu(1)Se4 tetrahedra, corners with two equivalent Cu(2)Se4 tetrahedra, corners with four equivalent Cu(5)Se4 tetrahedra, and corners with four equivalent Sn(3)Se4 tetrahedra. There are five inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one Se(10), one Se(7), and two equivalent Se(5) atoms to form CuSe4 tetrahedra that share  a cornercorner with one Fe(1)Se4 tetrahedra,  a cornercorner with one Sn(1)Se4 tetrahedra, corners with two equivalent Cu(1)Se4 tetrahedra, corners with two equivalent Cu(5)Se4 tetrahedra, corners with three equivalent Zn(2)Se4 tetrahedra, and corners with three equivalent Sn(3)Se4 tetrahedra. In the second Cu site, Cu(2) is bonded to one Se(2), one Se(3), one Se(8), and one Se(9) atom to form CuSe4 tetrahedra that share  a cornercorner with one Fe(1)Se4 tetrahedra,  a cornercorner with one Zn(2)Se4 tetrahedra,  a cornercorner with one Sn(1)Se4 tetrahedra,  a cornercorner with one Sn(2)Se4 tetrahedra, corners with two equivalent Cu(4)Se4 tetrahedra, corners with two equivalent Cu(5)Se4 tetrahedra, corners with two equivalent Zn(1)Se4 tetrahedra, and corners with two equivalent Sn(3)Se4 tetrahedra. In the third Cu site, Cu(3) is bonded to one Se(1), one Se(4), and two equivalent Se(6) atoms to form CuSe4 tetrahedra that share  a cornercorner with one Zn(2)Se4 tetrahedra,  a cornercorner with one Sn(2)Se4 tetrahedra, corners with two equivalent Cu(3)Se4 tetrahedra, corners with two equivalent Cu(4)Se4 tetrahedra, corners with three equivalent Zn(1)Se4 tetrahedra, and corners with three equivalent Sn(1)Se4 tetrahedra. In the fourth Cu site, Cu(4) is bonded to one Se(1), one Se(4), one Se(8), and one Se(9) atom to form CuSe4 tetrahedra that share  a cornercorner with one Sn(1)Se4 tetrahedra,  a cornercorner with one Sn(3)Se4 tetrahedra, corners with two equivalent Cu(2)Se4 tetrahedra, corners with two equivalent Cu(3)Se4 tetrahedra, corners with two equivalent Zn(1)Se4 tetrahedra, corners with two equivalent Zn(2)Se4 tetrahedra, and corners with two equivalent Sn(2)Se4 tetrahedra. In the fifth Cu site, Cu(5) is bonded to one Se(10), one Se(2), one Se(3), and one Se(7) atom to form CuSe4 tetrahedra that share  a cornercorner with one Zn(1)Se4 tetrahedra,  a cornercorner with one Zn(2)Se4 tetrahedra, corners with two equivalent Fe(1)Se4 tetrahedra, corners with two equivalent Cu(1)Se4 tetrahedra, corners with two equivalent Cu(2)Se4 tetrahedra, corners with two equivalent Sn(1)Se4 tetrahedra, and corners with two equivalent Sn(3)Se4 tetrahedra. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one Se(2), one Se(4), one Se(6), and one Se(9) atom to form ZnSe4 tetrahedra that share  a cornercorner with one Cu(5)Se4 tetrahedra, corners with two equivalent Cu(2)Se4 tetrahedra, corners with two equivalent Cu(4)Se4 tetrahedra, corners with two equivalent Sn(1)Se4 tetrahedra, corners with two equivalent Sn(2)Se4 tetrahedra, and corners with three equivalent Cu(3)Se4 tetrahedra. In the second Zn site, Zn(2) is bonded to one Se(1), one Se(5), one Se(7), and one Se(8) atom to form ZnSe4 tetrahedra that share  a cornercorner with one Cu(2)Se4 tetrahedra,  a cornercorner with one Cu(3)Se4 tetrahedra,  a cornercorner with one Cu(5)Se4 tetrahedra, corners with two equivalent Cu(4)Se4 tetrahedra, corners with two equivalent Sn(1)Se4 tetrahedra, corners with two equivalent Sn(3)Se4 tetrahedra, and corners with three equivalent Cu(1)Se4 tetrahedra. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one Se(1), one Se(2), one Se(6), and one Se(7) atom to form SnSe4 tetrahedra that share  a cornercorner with one Cu(1)Se4 tetrahedra,  a cornercorner with one Cu(2)Se4 tetrahedra,  a cornercorner with one Cu(4)Se4 tetrahedra, corners with two equivalent Cu(5)Se4 tetrahedra, corners with two equivalent Zn(1)Se4 tetrahedra, corners with two equivalent Zn(2)Se4 tetrahedra, and corners with three equivalent Cu(3)Se4 tetrahedra. In the second Sn site, Sn(2) is bonded to two equivalent Se(4) and two equivalent Se(9) atoms to form SnSe4 tetrahedra that share corners with two equivalent Cu(2)Se4 tetrahedra, corners with two equivalent Cu(3)Se4 tetrahedra, corners with four equivalent Cu(4)Se4 tetrahedra, and corners with four equivalent Zn(1)Se4 tetrahedra. In the third Sn site, Sn(3) is bonded to one Se(10), one Se(3), one Se(5), and one Se(8) atom to form SnSe4 tetrahedra that share  a cornercorner with one Cu(4)Se4 tetrahedra, corners with two equivalent Fe(1)Se4 tetrahedra, corners with two equivalent Cu(2)Se4 tetrahedra, corners with two equivalent Cu(5)Se4 tetrahedra, corners with two equivalent Zn(2)Se4 tetrahedra, and corners with three equivalent Cu(1)Se4 tetrahedra. There are ten inequivalent Se sites. In the first Se site, Se(1) is bonded to one Cu(3), one Cu(4), one Zn(2), and one Sn(1) atom to form corner-sharing SeZnCu2Sn tetrahedra. In the second Se site, Se(2) is bonded to one Cu(2), one Cu(5), one Zn(1), and one Sn(1) atom to form SeZnCu2Sn tetrahedra that share  a cornercorner with one Se(10)FeCu2Sn tetrahedra,  a cornercorner with one Se(1)ZnCu2Sn tetrahedra,  a cornercorner with one Se(4)ZnCu2Sn tetrahedra,  a cornercorner with one Se(8)ZnCu2Sn tetrahedra, corners with two equivalent Se(3)FeCu2Sn tetrahedra, corners with two equivalent Se(6)ZnCu2Sn tetrahedra, corners with two equivalent Se(7)ZnCu2Sn tetrahedra, and corners with two equivalent Se(9)ZnCu2Sn tetrahedra. In the third Se site, Se(3) is bonded to one Fe(1), one Cu(2), one Cu(5), and one Sn(3) atom to form SeFeCu2Sn tetrahedra that share  a cornercorner with one Se(3)FeCu2Sn tetrahedra,  a cornercorner with one Se(5)ZnCu2Sn tetrahedra,  a cornercorner with one Se(7)ZnCu2Sn tetrahedra,  a cornercorner with one Se(9)ZnCu2Sn tetrahedra, corners with two equivalent Se(2)ZnCu2Sn tetrahedra, corners with two equivalent Se(8)ZnCu2Sn tetrahedra, and corners with four equivalent Se(10)FeCu2Sn tetrahedra. In the fourth Se site, Se(4) is bonded to one Cu(3), one Cu(4), one Zn(1), and one Sn(2) atom to form corner-sharing SeZnCu2Sn tetrahedra. In the fifth Se site, Se(5) is bonded to two equivalent Cu(1), one Zn(2), and one Sn(3) atom to form SeZnCu2Sn tetrahedra that share  a cornercorner with one Se(3)FeCu2Sn tetrahedra,  a cornercorner with one Se(1)ZnCu2Sn tetrahedra, corners with two equivalent Se(5)ZnCu2Sn tetrahedra, corners with two equivalent Se(8)ZnCu2Sn tetrahedra, corners with three equivalent Se(10)FeCu2Sn tetrahedra, and corners with three equivalent Se(7)ZnCu2Sn tetrahedra. In the sixth Se site, Se(6) is bonded to two equivalent Cu(3), one Zn(1), and one Sn(1) atom to form corner-sharing SeZnCu2Sn tetrahedra. In the seventh Se site, Se(7) is bonded to one Cu(1), one Cu(5), one Zn(2), and one Sn(1) atom to form SeZnCu2Sn tetrahedra that share  a cornercorner with one Se(3)FeCu2Sn tetrahedra,  a cornercorner with one Se(6)ZnCu2Sn tetrahedra,  a cornercorner with one Se(8)ZnCu2Sn tetrahedra, corners with two equivalent Se(10)FeCu2Sn tetrahedra, corners with two equivalent Se(1)ZnCu2Sn tetrahedra, corners with two equivalent Se(2)ZnCu2Sn tetrahedra, and corners with three equivalent Se(5)ZnCu2Sn tetrahedra. In the eighth Se site, Se(8) is bonded to one Cu(2), one Cu(4), one Zn(2), and one Sn(3) atom to form SeZnCu2Sn tetrahedra that share  a cornercorner with one Se(10)FeCu2Sn tetrahedra,  a cornercorner with one Se(2)ZnCu2Sn tetrahedra,  a cornercorner with one Se(4)ZnCu2Sn tetrahedra,  a cornercorner with one Se(7)ZnCu2Sn tetrahedra, corners with two equivalent Se(3)FeCu2Sn tetrahedra, corners with two equivalent Se(1)ZnCu2Sn tetrahedra, corners with two equivalent Se(5)ZnCu2Sn tetrahedra, and corners with two equivalent Se(9)ZnCu2Sn tetrahedra. In the ninth Se site, Se(9) is bonded to one Cu(2), one Cu(4), one Zn(1), and one Sn(2) atom to form SeZnCu2Sn tetrahedra that share  a cornercorner with one Se(3)FeCu2Sn tetrahedra,  a cornercorner with one Se(1)ZnCu2Sn tetrahedra,  a cornercorner with one Se(6)ZnCu2Sn tetrahedra,  a cornercorner with one Se(9)ZnCu2Sn tetrahedra, corners with two equivalent Se(2)ZnCu2Sn tetrahedra, corners with two equivalent Se(8)ZnCu2Sn tetrahedra, and corners with four equivalent Se(4)ZnCu2Sn tetrahedra. In the tenth Se site, Se(10) is bonded to one Fe(1), one Cu(1), one Cu(5), and one Sn(3) atom to form SeFeCu2Sn tetrahedra that share  a cornercorner with one Se(10)FeCu2Sn tetrahedra,  a cornercorner with one Se(2)ZnCu2Sn tetrahedra,  a cornercorner with one Se(8)ZnCu2Sn tetrahedra, corners with two equivalent Se(7)ZnCu2Sn tetrahedra, corners with three equivalent Se(5)ZnCu2Sn tetrahedra, and corners with four equivalent Se(3)FeCu2Sn tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn4FeCu10(SnSe4)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.778
_cell_length_b   10.778
_cell_length_c   16.361
_cell_angle_alpha   79.108
_cell_angle_beta   79.108
_cell_angle_gamma   30.939
_symmetry_Int_Tables_number   1
_cell_volume   958.101
_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
  Zn  Zn0  1  1.000  0.800  0.900  1.0
  Zn  Zn1  1  0.400  0.200  0.300  1.0
  Zn  Zn2  1  0.800  0.600  0.700  1.0
  Zn  Zn3  1  0.200  0.000  0.100  1.0
  Fe  Fe4  1  0.599  0.401  0.500  1.0
  Cu  Cu5  1  0.800  0.600  0.450  1.0
  Cu  Cu6  1  0.600  0.400  0.250  1.0
  Cu  Cu7  1  0.400  0.200  0.050  1.0
  Cu  Cu8  1  0.200  1.000  0.850  1.0
  Cu  Cu9  1  0.000  0.800  0.650  1.0
  Cu  Cu10  1  0.200  1.000  0.350  1.0
  Cu  Cu11  1  0.000  0.800  0.150  1.0
  Cu  Cu12  1  0.800  0.600  0.950  1.0
  Cu  Cu13  1  0.600  0.400  0.750  1.0
  Cu  Cu14  1  0.400  0.200  0.550  1.0
  Sn  Sn15  1  0.800  0.600  0.200  1.0
  Sn  Sn16  1  0.601  0.399  0.000  1.0
  Sn  Sn17  1  0.400  0.200  0.800  1.0
  Sn  Sn18  1  0.200  0.000  0.600  1.0
  Sn  Sn19  1  1.000  0.800  0.400  1.0
  Se  Se20  1  0.554  0.835  0.829  1.0
  Se  Se21  1  0.954  0.234  0.229  1.0
  Se  Se22  1  0.360  0.628  0.626  1.0
  Se  Se23  1  0.754  0.035  0.029  1.0
  Se  Se24  1  0.155  0.433  0.429  1.0
  Se  Se25  1  0.139  0.457  0.932  1.0
  Se  Se26  1  0.538  0.858  0.333  1.0
  Se  Se27  1  0.938  0.259  0.733  1.0
  Se  Se28  1  0.338  0.658  0.133  1.0
  Se  Se29  1  0.735  0.066  0.532  1.0
  Se  Se30  1  0.543  0.861  0.068  1.0
  Se  Se31  1  0.934  0.265  0.468  1.0
  Se  Se32  1  0.342  0.662  0.867  1.0
  Se  Se33  1  0.741  0.062  0.267  1.0
  Se  Se34  1  0.142  0.462  0.667  1.0
  Se  Se35  1  0.165  0.446  0.171  1.0
  Se  Se36  1  0.567  0.845  0.571  1.0
  Se  Se37  1  0.965  0.246  0.971  1.0
  Se  Se38  1  0.372  0.640  0.374  1.0
  Se  Se39  1  0.766  0.046  0.771  1.0
[/CIF]
.
The structure described by FeCu10Zn4(SnSe4)5 is Clathrate-derived structured and crystallizes in the monoclinic C2 space group. Fe(1) is bonded to two equivalent Se(10) and two equivalent Se(3) atoms to form FeSe4 tetrahedra that share corners with two equivalent Cu(1)Se4 tetrahedra, corners with two equivalent Cu(2)Se4 tetrahedra, corners with four equivalent Cu(5)Se4 tetrahedra, and corners with four equivalent Sn(3)Se4 tetrahedra. There are five inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one Se(10), one Se(7), and two equivalent Se(5) atoms to form CuSe4 tetrahedra that share  a cornercorner with one Fe(1)Se4 tetrahedra,  a cornercorner with one Sn(1)Se4 tetrahedra, corners with two equivalent Cu(1)Se4 tetrahedra, corners with two equivalent Cu(5)Se4 tetrahedra, corners with three equivalent Zn(2)Se4 tetrahedra, and corners with three equivalent Sn(3)Se4 tetrahedra. In the second Cu site, Cu(2) is bonded to one Se(2), one Se(3), one Se(8), and one Se(9) atom to form CuSe4 tetrahedra that share  a cornercorner with one Fe(1)Se4 tetrahedra,  a cornercorner with one Zn(2)Se4 tetrahedra,  a cornercorner with one Sn(1)Se4 tetrahedra,  a cornercorner with one Sn(2)Se4 tetrahedra, corners with two equivalent Cu(4)Se4 tetrahedra, corners with two equivalent Cu(5)Se4 tetrahedra, corners with two equivalent Zn(1)Se4 tetrahedra, and corners with two equivalent Sn(3)Se4 tetrahedra. In the third Cu site, Cu(3) is bonded to one Se(1), one Se(4), and two equivalent Se(6) atoms to form CuSe4 tetrahedra that share  a cornercorner with one Zn(2)Se4 tetrahedra,  a cornercorner with one Sn(2)Se4 tetrahedra, corners with two equivalent Cu(3)Se4 tetrahedra, corners with two equivalent Cu(4)Se4 tetrahedra, corners with three equivalent Zn(1)Se4 tetrahedra, and corners with three equivalent Sn(1)Se4 tetrahedra. In the fourth Cu site, Cu(4) is bonded to one Se(1), one Se(4), one Se(8), and one Se(9) atom to form CuSe4 tetrahedra that share  a cornercorner with one Sn(1)Se4 tetrahedra,  a cornercorner with one Sn(3)Se4 tetrahedra, corners with two equivalent Cu(2)Se4 tetrahedra, corners with two equivalent Cu(3)Se4 tetrahedra, corners with two equivalent Zn(1)Se4 tetrahedra, corners with two equivalent Zn(2)Se4 tetrahedra, and corners with two equivalent Sn(2)Se4 tetrahedra. In the fifth Cu site, Cu(5) is bonded to one Se(10), one Se(2), one Se(3), and one Se(7) atom to form CuSe4 tetrahedra that share  a cornercorner with one Zn(1)Se4 tetrahedra,  a cornercorner with one Zn(2)Se4 tetrahedra, corners with two equivalent Fe(1)Se4 tetrahedra, corners with two equivalent Cu(1)Se4 tetrahedra, corners with two equivalent Cu(2)Se4 tetrahedra, corners with two equivalent Sn(1)Se4 tetrahedra, and corners with two equivalent Sn(3)Se4 tetrahedra. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one Se(2), one Se(4), one Se(6), and one Se(9) atom to form ZnSe4 tetrahedra that share  a cornercorner with one Cu(5)Se4 tetrahedra, corners with two equivalent Cu(2)Se4 tetrahedra, corners with two equivalent Cu(4)Se4 tetrahedra, corners with two equivalent Sn(1)Se4 tetrahedra, corners with two equivalent Sn(2)Se4 tetrahedra, and corners with three equivalent Cu(3)Se4 tetrahedra. In the second Zn site, Zn(2) is bonded to one Se(1), one Se(5), one Se(7), and one Se(8) atom to form ZnSe4 tetrahedra that share  a cornercorner with one Cu(2)Se4 tetrahedra,  a cornercorner with one Cu(3)Se4 tetrahedra,  a cornercorner with one Cu(5)Se4 tetrahedra, corners with two equivalent Cu(4)Se4 tetrahedra, corners with two equivalent Sn(1)Se4 tetrahedra, corners with two equivalent Sn(3)Se4 tetrahedra, and corners with three equivalent Cu(1)Se4 tetrahedra. There are three inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to one Se(1), one Se(2), one Se(6), and one Se(7) atom to form SnSe4 tetrahedra that share  a cornercorner with one Cu(1)Se4 tetrahedra,  a cornercorner with one Cu(2)Se4 tetrahedra,  a cornercorner with one Cu(4)Se4 tetrahedra, corners with two equivalent Cu(5)Se4 tetrahedra, corners with two equivalent Zn(1)Se4 tetrahedra, corners with two equivalent Zn(2)Se4 tetrahedra, and corners with three equivalent Cu(3)Se4 tetrahedra. In the second Sn site, Sn(2) is bonded to two equivalent Se(4) and two equivalent Se(9) atoms to form SnSe4 tetrahedra that share corners with two equivalent Cu(2)Se4 tetrahedra, corners with two equivalent Cu(3)Se4 tetrahedra, corners with four equivalent Cu(4)Se4 tetrahedra, and corners with four equivalent Zn(1)Se4 tetrahedra. In the third Sn site, Sn(3) is bonded to one Se(10), one Se(3), one Se(5), and one Se(8) atom to form SnSe4 tetrahedra that share  a cornercorner with one Cu(4)Se4 tetrahedra, corners with two equivalent Fe(1)Se4 tetrahedra, corners with two equivalent Cu(2)Se4 tetrahedra, corners with two equivalent Cu(5)Se4 tetrahedra, corners with two equivalent Zn(2)Se4 tetrahedra, and corners with three equivalent Cu(1)Se4 tetrahedra. There are ten inequivalent Se sites. In the first Se site, Se(1) is bonded to one Cu(3), one Cu(4), one Zn(2), and one Sn(1) atom to form corner-sharing SeZnCu2Sn tetrahedra. In the second Se site, Se(2) is bonded to one Cu(2), one Cu(5), one Zn(1), and one Sn(1) atom to form SeZnCu2Sn tetrahedra that share  a cornercorner with one Se(10)FeCu2Sn tetrahedra,  a cornercorner with one Se(1)ZnCu2Sn tetrahedra,  a cornercorner with one Se(4)ZnCu2Sn tetrahedra,  a cornercorner with one Se(8)ZnCu2Sn tetrahedra, corners with two equivalent Se(3)FeCu2Sn tetrahedra, corners with two equivalent Se(6)ZnCu2Sn tetrahedra, corners with two equivalent Se(7)ZnCu2Sn tetrahedra, and corners with two equivalent Se(9)ZnCu2Sn tetrahedra. In the third Se site, Se(3) is bonded to one Fe(1), one Cu(2), one Cu(5), and one Sn(3) atom to form SeFeCu2Sn tetrahedra that share  a cornercorner with one Se(3)FeCu2Sn tetrahedra,  a cornercorner with one Se(5)ZnCu2Sn tetrahedra,  a cornercorner with one Se(7)ZnCu2Sn tetrahedra,  a cornercorner with one Se(9)ZnCu2Sn tetrahedra, corners with two equivalent Se(2)ZnCu2Sn tetrahedra, corners with two equivalent Se(8)ZnCu2Sn tetrahedra, and corners with four equivalent Se(10)FeCu2Sn tetrahedra. In the fourth Se site, Se(4) is bonded to one Cu(3), one Cu(4), one Zn(1), and one Sn(2) atom to form corner-sharing SeZnCu2Sn tetrahedra. In the fifth Se site, Se(5) is bonded to two equivalent Cu(1), one Zn(2), and one Sn(3) atom to form SeZnCu2Sn tetrahedra that share  a cornercorner with one Se(3)FeCu2Sn tetrahedra,  a cornercorner with one Se(1)ZnCu2Sn tetrahedra, corners with two equivalent Se(5)ZnCu2Sn tetrahedra, corners with two equivalent Se(8)ZnCu2Sn tetrahedra, corners with three equivalent Se(10)FeCu2Sn tetrahedra, and corners with three equivalent Se(7)ZnCu2Sn tetrahedra. In the sixth Se site, Se(6) is bonded to two equivalent Cu(3), one Zn(1), and one Sn(1) atom to form corner-sharing SeZnCu2Sn tetrahedra. In the seventh Se site, Se(7) is bonded to one Cu(1), one Cu(5), one Zn(2), and one Sn(1) atom to form SeZnCu2Sn tetrahedra that share  a cornercorner with one Se(3)FeCu2Sn tetrahedra,  a cornercorner with one Se(6)ZnCu2Sn tetrahedra,  a cornercorner with one Se(8)ZnCu2Sn tetrahedra, corners with two equivalent Se(10)FeCu2Sn tetrahedra, corners with two equivalent Se(1)ZnCu2Sn tetrahedra, corners with two equivalent Se(2)ZnCu2Sn tetrahedra, and corners with three equivalent Se(5)ZnCu2Sn tetrahedra. In the eighth Se site, Se(8) is bonded to one Cu(2), one Cu(4), one Zn(2), and one Sn(3) atom to form SeZnCu2Sn tetrahedra that share  a cornercorner with one Se(10)FeCu2Sn tetrahedra,  a cornercorner with one Se(2)ZnCu2Sn tetrahedra,  a cornercorner with one Se(4)ZnCu2Sn tetrahedra,  a cornercorner with one Se(7)ZnCu2Sn tetrahedra, corners with two equivalent Se(3)FeCu2Sn tetrahedra, corners with two equivalent Se(1)ZnCu2Sn tetrahedra, corners with two equivalent Se(5)ZnCu2Sn tetrahedra, and corners with two equivalent Se(9)ZnCu2Sn tetrahedra. In the ninth Se site, Se(9) is bonded to one Cu(2), one Cu(4), one Zn(1), and one Sn(2) atom to form SeZnCu2Sn tetrahedra that share  a cornercorner with one Se(3)FeCu2Sn tetrahedra,  a cornercorner with one Se(1)ZnCu2Sn tetrahedra,  a cornercorner with one Se(6)ZnCu2Sn tetrahedra,  a cornercorner with one Se(9)ZnCu2Sn tetrahedra, corners with two equivalent Se(2)ZnCu2Sn tetrahedra, corners with two equivalent Se(8)ZnCu2Sn tetrahedra, and corners with four equivalent Se(4)ZnCu2Sn tetrahedra. In the tenth Se site, Se(10) is bonded to one Fe(1), one Cu(1), one Cu(5), and one Sn(3) atom to form SeFeCu2Sn tetrahedra that share  a cornercorner with one Se(10)FeCu2Sn tetrahedra,  a cornercorner with one Se(2)ZnCu2Sn tetrahedra,  a cornercorner with one Se(8)ZnCu2Sn tetrahedra, corners with two equivalent Se(7)ZnCu2Sn tetrahedra, corners with three equivalent Se(5)ZnCu2Sn tetrahedra, and corners with four equivalent Se(3)FeCu2Sn tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn4FeCu10(SnSe4)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.778
_cell_length_b   10.778
_cell_length_c   16.361
_cell_angle_alpha   79.108
_cell_angle_beta   79.108
_cell_angle_gamma   30.939
_symmetry_Int_Tables_number   1
_cell_volume   958.101
_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
  Zn  Zn0  1  1.000  0.800  0.900  1.0
  Zn  Zn1  1  0.400  0.200  0.300  1.0
  Zn  Zn2  1  0.800  0.600  0.700  1.0
  Zn  Zn3  1  0.200  0.000  0.100  1.0
  Fe  Fe4  1  0.599  0.401  0.500  1.0
  Cu  Cu5  1  0.800  0.600  0.450  1.0
  Cu  Cu6  1  0.600  0.400  0.250  1.0
  Cu  Cu7  1  0.400  0.200  0.050  1.0
  Cu  Cu8  1  0.200  1.000  0.850  1.0
  Cu  Cu9  1  0.000  0.800  0.650  1.0
  Cu  Cu10  1  0.200  1.000  0.350  1.0
  Cu  Cu11  1  0.000  0.800  0.150  1.0
  Cu  Cu12  1  0.800  0.600  0.950  1.0
  Cu  Cu13  1  0.600  0.400  0.750  1.0
  Cu  Cu14  1  0.400  0.200  0.550  1.0
  Sn  Sn15  1  0.800  0.600  0.200  1.0
  Sn  Sn16  1  0.601  0.399  0.000  1.0
  Sn  Sn17  1  0.400  0.200  0.800  1.0
  Sn  Sn18  1  0.200  0.000  0.600  1.0
  Sn  Sn19  1  1.000  0.800  0.400  1.0
  Se  Se20  1  0.554  0.835  0.829  1.0
  Se  Se21  1  0.954  0.234  0.229  1.0
  Se  Se22  1  0.360  0.628  0.626  1.0
  Se  Se23  1  0.754  0.035  0.029  1.0
  Se  Se24  1  0.155  0.433  0.429  1.0
  Se  Se25  1  0.139  0.457  0.932  1.0
  Se  Se26  1  0.538  0.858  0.333  1.0
  Se  Se27  1  0.938  0.259  0.733  1.0
  Se  Se28  1  0.338  0.658  0.133  1.0
  Se  Se29  1  0.735  0.066  0.532  1.0
  Se  Se30  1  0.543  0.861  0.068  1.0
  Se  Se31  1  0.934  0.265  0.468  1.0
  Se  Se32  1  0.342  0.662  0.867  1.0
  Se  Se33  1  0.741  0.062  0.267  1.0
  Se  Se34  1  0.142  0.462  0.667  1.0
  Se  Se35  1  0.165  0.446  0.171  1.0
  Se  Se36  1  0.567  0.845  0.571  1.0
  Se  Se37  1  0.965  0.246  0.971  1.0
  Se  Se38  1  0.372  0.640  0.374  1.0
  Se  Se39  1  0.766  0.046  0.771  1.0
[/CIF]
.