The material structure described by Fe3Zn10 crystallizes in the orthorhombic Fmm2 space group. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 12-coordinate geometry to one Fe(3), one Zn(3), two equivalent Zn(1), two equivalent Zn(4), two equivalent Zn(5), two equivalent Zn(7), and two equivalent Zn(8) atoms. In the second Fe site, Fe(2) is bonded in a distorted q6 geometry to two equivalent Fe(3), one Zn(2), one Zn(8), two equivalent Zn(1), two equivalent Zn(5), two equivalent Zn(6), and two equivalent Zn(7) atoms. In the third Fe site, Fe(3) is bonded in a 12-coordinate geometry to one Fe(1), one Fe(3), two equivalent Fe(2), one Zn(2), one Zn(4), two equivalent Zn(1), two equivalent Zn(5), and two equivalent Zn(8) atoms. There are eight inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 13-coordinate geometry to one Fe(1), one Fe(2), one Fe(3), one Zn(1), one Zn(4), one Zn(6), one Zn(8), three equivalent Zn(5), and three equivalent Zn(7) atoms. In the second Zn site, Zn(2) is bonded in a 13-coordinate geometry to two equivalent Fe(2), two equivalent Fe(3), one Zn(3), two equivalent Zn(4), two equivalent Zn(6), and four equivalent Zn(5) atoms. In the third Zn site, Zn(3) is bonded in a 13-coordinate geometry to two equivalent Fe(1), one Zn(2), two equivalent Zn(4), two equivalent Zn(6), two equivalent Zn(8), and four equivalent Zn(7) atoms. In the fourth Zn site, Zn(4) is bonded in a 3-coordinate geometry to one Fe(3), two equivalent Fe(1), one Zn(2), one Zn(3), two equivalent Zn(1), and two equivalent Zn(7) atoms. In the fifth Zn site, Zn(5) is bonded in a 3-coordinate geometry to one Fe(1), one Fe(2), one Fe(3), one Zn(2), one Zn(6), two equivalent Zn(7), and three equivalent Zn(1) atoms. In the sixth Zn site, Zn(6) is bonded in a 11-coordinate geometry to two equivalent Fe(2), one Zn(2), one Zn(3), one Zn(8), two equivalent Zn(1), two equivalent Zn(5), and two equivalent Zn(7) atoms. In the seventh Zn site, Zn(7) is bonded in a 11-coordinate geometry to one Fe(1), one Fe(2), one Zn(3), one Zn(4), one Zn(6), one Zn(8), two equivalent Zn(5), and three equivalent Zn(1) atoms. In the eighth Zn site, Zn(8) is bonded in a 12-coordinate geometry to one Fe(2), two equivalent Fe(1), two equivalent Fe(3), one Zn(3), one Zn(6), one Zn(8), two equivalent Zn(1), and two equivalent Zn(7) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn10Fe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.998
_cell_length_b   7.803
_cell_length_c   7.795
_cell_angle_alpha   70.460
_cell_angle_beta   54.811
_cell_angle_gamma   54.730
_symmetry_Int_Tables_number   1
_cell_volume   365.206
_cell_formula_units_Z   2
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  0.354  0.999  0.003  1.0
  Zn  Zn1  1  0.001  0.646  0.356  1.0
  Zn  Zn2  1  0.647  0.353  0.353  1.0
  Zn  Zn3  1  0.644  0.003  0.999  1.0
  Zn  Zn4  1  0.997  0.356  0.646  1.0
  Zn  Zn5  1  0.358  0.642  0.642  1.0
  Zn  Zn6  1  0.251  0.749  0.354  1.0
  Zn  Zn7  1  0.746  0.999  0.607  1.0
  Zn  Zn8  1  0.001  0.254  0.352  1.0
  Zn  Zn9  1  0.646  0.354  0.749  1.0
  Zn  Zn10  1  0.648  0.607  0.999  1.0
  Zn  Zn11  1  0.393  0.352  0.254  1.0
  Zn  Zn12  1  0.743  0.647  0.257  1.0
  Zn  Zn13  1  0.256  0.391  0.998  1.0
  Zn  Zn14  1  0.002  0.645  0.744  1.0
  Zn  Zn15  1  0.353  0.257  0.647  1.0
  Zn  Zn16  1  0.355  0.998  0.391  1.0
  Zn  Zn17  1  0.609  0.744  0.645  1.0
  Zn  Zn18  1  0.001  0.795  0.999  1.0
  Zn  Zn19  1  0.205  0.999  0.795  1.0
  Fe  Fe20  1  0.994  0.006  0.664  1.0
  Fe  Fe21  1  0.336  0.664  0.006  1.0
  Fe  Fe22  1  0.994  0.331  0.006  1.0
  Fe  Fe23  1  0.669  0.006  0.331  1.0
  Fe  Fe24  1  0.999  0.001  0.204  1.0
  Fe  Fe25  1  0.796  0.204  0.001  1.0
[/CIF]
.
The material structure described by Fe3Zn10 crystallizes in the orthorhombic Fmm2 space group. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 12-coordinate geometry to one Fe(3), one Zn(3), two equivalent Zn(1), two equivalent Zn(4), two equivalent Zn(5), two equivalent Zn(7), and two equivalent Zn(8) atoms. In the second Fe site, Fe(2) is bonded in a distorted q6 geometry to two equivalent Fe(3), one Zn(2), one Zn(8), two equivalent Zn(1), two equivalent Zn(5), two equivalent Zn(6), and two equivalent Zn(7) atoms. In the third Fe site, Fe(3) is bonded in a 12-coordinate geometry to one Fe(1), one Fe(3), two equivalent Fe(2), one Zn(2), one Zn(4), two equivalent Zn(1), two equivalent Zn(5), and two equivalent Zn(8) atoms. There are eight inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 13-coordinate geometry to one Fe(1), one Fe(2), one Fe(3), one Zn(1), one Zn(4), one Zn(6), one Zn(8), three equivalent Zn(5), and three equivalent Zn(7) atoms. In the second Zn site, Zn(2) is bonded in a 13-coordinate geometry to two equivalent Fe(2), two equivalent Fe(3), one Zn(3), two equivalent Zn(4), two equivalent Zn(6), and four equivalent Zn(5) atoms. In the third Zn site, Zn(3) is bonded in a 13-coordinate geometry to two equivalent Fe(1), one Zn(2), two equivalent Zn(4), two equivalent Zn(6), two equivalent Zn(8), and four equivalent Zn(7) atoms. In the fourth Zn site, Zn(4) is bonded in a 3-coordinate geometry to one Fe(3), two equivalent Fe(1), one Zn(2), one Zn(3), two equivalent Zn(1), and two equivalent Zn(7) atoms. In the fifth Zn site, Zn(5) is bonded in a 3-coordinate geometry to one Fe(1), one Fe(2), one Fe(3), one Zn(2), one Zn(6), two equivalent Zn(7), and three equivalent Zn(1) atoms. In the sixth Zn site, Zn(6) is bonded in a 11-coordinate geometry to two equivalent Fe(2), one Zn(2), one Zn(3), one Zn(8), two equivalent Zn(1), two equivalent Zn(5), and two equivalent Zn(7) atoms. In the seventh Zn site, Zn(7) is bonded in a 11-coordinate geometry to one Fe(1), one Fe(2), one Zn(3), one Zn(4), one Zn(6), one Zn(8), two equivalent Zn(5), and three equivalent Zn(1) atoms. In the eighth Zn site, Zn(8) is bonded in a 12-coordinate geometry to one Fe(2), two equivalent Fe(1), two equivalent Fe(3), one Zn(3), one Zn(6), one Zn(8), two equivalent Zn(1), and two equivalent Zn(7) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn10Fe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.998
_cell_length_b   7.803
_cell_length_c   7.795
_cell_angle_alpha   70.460
_cell_angle_beta   54.811
_cell_angle_gamma   54.730
_symmetry_Int_Tables_number   1
_cell_volume   365.206
_cell_formula_units_Z   2
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  0.354  0.999  0.003  1.0
  Zn  Zn1  1  0.001  0.646  0.356  1.0
  Zn  Zn2  1  0.647  0.353  0.353  1.0
  Zn  Zn3  1  0.644  0.003  0.999  1.0
  Zn  Zn4  1  0.997  0.356  0.646  1.0
  Zn  Zn5  1  0.358  0.642  0.642  1.0
  Zn  Zn6  1  0.251  0.749  0.354  1.0
  Zn  Zn7  1  0.746  0.999  0.607  1.0
  Zn  Zn8  1  0.001  0.254  0.352  1.0
  Zn  Zn9  1  0.646  0.354  0.749  1.0
  Zn  Zn10  1  0.648  0.607  0.999  1.0
  Zn  Zn11  1  0.393  0.352  0.254  1.0
  Zn  Zn12  1  0.743  0.647  0.257  1.0
  Zn  Zn13  1  0.256  0.391  0.998  1.0
  Zn  Zn14  1  0.002  0.645  0.744  1.0
  Zn  Zn15  1  0.353  0.257  0.647  1.0
  Zn  Zn16  1  0.355  0.998  0.391  1.0
  Zn  Zn17  1  0.609  0.744  0.645  1.0
  Zn  Zn18  1  0.001  0.795  0.999  1.0
  Zn  Zn19  1  0.205  0.999  0.795  1.0
  Fe  Fe20  1  0.994  0.006  0.664  1.0
  Fe  Fe21  1  0.336  0.664  0.006  1.0
  Fe  Fe22  1  0.994  0.331  0.006  1.0
  Fe  Fe23  1  0.669  0.006  0.331  1.0
  Fe  Fe24  1  0.999  0.001  0.204  1.0
  Fe  Fe25  1  0.796  0.204  0.001  1.0
[/CIF]
.