The structure described by HoFe2Al10 crystallizes in the orthorhombic Cmcm space group. Ho(1) is bonded in a 20-coordinate geometry to four equivalent Fe(1), two equivalent Al(1), two equivalent Al(5), four equivalent Al(2), four equivalent Al(3), and four equivalent Al(4) atoms. Fe(1) is bonded in a 10-coordinate geometry to two equivalent Ho(1), two equivalent Al(1), two equivalent Al(2), two equivalent Al(3), two equivalent Al(4), and two equivalent Al(5) atoms. There are five inequivalent Al sites. In the first Al site, Al(1) is bonded in a 11-coordinate geometry to one Ho(1), two equivalent Fe(1), one Al(1), one Al(3), two equivalent Al(2), two equivalent Al(4), and two equivalent Al(5) atoms. In the second Al site, Al(2) is bonded in a 12-coordinate geometry to two equivalent Ho(1), two equivalent Fe(1), two equivalent Al(1), two equivalent Al(3), two equivalent Al(4), and two equivalent Al(5) atoms. In the third Al site, Al(3) is bonded in a 12-coordinate geometry to two equivalent Ho(1), two equivalent Fe(1), one Al(1), one Al(3), two equivalent Al(2), two equivalent Al(4), and two equivalent Al(5) atoms. In the fourth Al site, Al(4) is bonded in a 2-coordinate geometry to two equivalent Ho(1), two equivalent Fe(1), two equivalent Al(1), two equivalent Al(2), two equivalent Al(3), and two equivalent Al(5) atoms. In the fifth Al site, Al(5) is bonded to one Ho(1), two equivalent Fe(1), one Al(5), two equivalent Al(1), two equivalent Al(2), two equivalent Al(3), and two equivalent Al(4) atoms to form a mixture of distorted corner and face-sharing AlHoAl9Fe2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ho(Al5Fe)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.698
_cell_length_b   6.698
_cell_length_c   8.869
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   97.397
_symmetry_Int_Tables_number   1
_cell_volume   394.612
_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
  Ho  Ho0  1  0.874  0.126  0.750  1.0
  Ho  Ho1  1  0.126  0.874  0.250  1.0
  Al  Al2  1  0.626  0.374  0.549  1.0
  Al  Al3  1  0.374  0.626  0.451  1.0
  Al  Al4  1  0.374  0.626  0.049  1.0
  Al  Al5  1  0.626  0.374  0.951  1.0
  Al  Al6  1  0.228  0.228  0.500  1.0
  Al  Al7  1  0.772  0.772  0.500  1.0
  Al  Al8  1  0.772  0.772  0.000  1.0
  Al  Al9  1  0.228  0.228  0.000  1.0
  Al  Al10  1  0.841  0.159  0.097  1.0
  Al  Al11  1  0.159  0.841  0.903  1.0
  Al  Al12  1  0.159  0.841  0.597  1.0
  Al  Al13  1  0.841  0.159  0.403  1.0
  Al  Al14  1  0.866  0.586  0.750  1.0
  Al  Al15  1  0.134  0.414  0.250  1.0
  Al  Al16  1  0.414  0.134  0.750  1.0
  Al  Al17  1  0.586  0.866  0.250  1.0
  Al  Al18  1  0.219  0.479  0.750  1.0
  Al  Al19  1  0.781  0.521  0.250  1.0
  Al  Al20  1  0.521  0.781  0.750  1.0
  Al  Al21  1  0.479  0.219  0.250  1.0
  Fe  Fe22  1  0.000  0.500  0.500  1.0
  Fe  Fe23  1  0.000  0.500  0.000  1.0
  Fe  Fe24  1  0.500  0.000  0.000  1.0
  Fe  Fe25  1  0.500  0.000  0.500  1.0
[/CIF]
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The structure described by HoFe2Al10 crystallizes in the orthorhombic Cmcm space group. Ho(1) is bonded in a 20-coordinate geometry to four equivalent Fe(1), two equivalent Al(1), two equivalent Al(5), four equivalent Al(2), four equivalent Al(3), and four equivalent Al(4) atoms. Fe(1) is bonded in a 10-coordinate geometry to two equivalent Ho(1), two equivalent Al(1), two equivalent Al(2), two equivalent Al(3), two equivalent Al(4), and two equivalent Al(5) atoms. There are five inequivalent Al sites. In the first Al site, Al(1) is bonded in a 11-coordinate geometry to one Ho(1), two equivalent Fe(1), one Al(1), one Al(3), two equivalent Al(2), two equivalent Al(4), and two equivalent Al(5) atoms. In the second Al site, Al(2) is bonded in a 12-coordinate geometry to two equivalent Ho(1), two equivalent Fe(1), two equivalent Al(1), two equivalent Al(3), two equivalent Al(4), and two equivalent Al(5) atoms. In the third Al site, Al(3) is bonded in a 12-coordinate geometry to two equivalent Ho(1), two equivalent Fe(1), one Al(1), one Al(3), two equivalent Al(2), two equivalent Al(4), and two equivalent Al(5) atoms. In the fourth Al site, Al(4) is bonded in a 2-coordinate geometry to two equivalent Ho(1), two equivalent Fe(1), two equivalent Al(1), two equivalent Al(2), two equivalent Al(3), and two equivalent Al(5) atoms. In the fifth Al site, Al(5) is bonded to one Ho(1), two equivalent Fe(1), one Al(5), two equivalent Al(1), two equivalent Al(2), two equivalent Al(3), and two equivalent Al(4) atoms to form a mixture of distorted corner and face-sharing AlHoAl9Fe2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ho(Al5Fe)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.698
_cell_length_b   6.698
_cell_length_c   8.869
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   97.397
_symmetry_Int_Tables_number   1
_cell_volume   394.612
_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
  Ho  Ho0  1  0.874  0.126  0.750  1.0
  Ho  Ho1  1  0.126  0.874  0.250  1.0
  Al  Al2  1  0.626  0.374  0.549  1.0
  Al  Al3  1  0.374  0.626  0.451  1.0
  Al  Al4  1  0.374  0.626  0.049  1.0
  Al  Al5  1  0.626  0.374  0.951  1.0
  Al  Al6  1  0.228  0.228  0.500  1.0
  Al  Al7  1  0.772  0.772  0.500  1.0
  Al  Al8  1  0.772  0.772  0.000  1.0
  Al  Al9  1  0.228  0.228  0.000  1.0
  Al  Al10  1  0.841  0.159  0.097  1.0
  Al  Al11  1  0.159  0.841  0.903  1.0
  Al  Al12  1  0.159  0.841  0.597  1.0
  Al  Al13  1  0.841  0.159  0.403  1.0
  Al  Al14  1  0.866  0.586  0.750  1.0
  Al  Al15  1  0.134  0.414  0.250  1.0
  Al  Al16  1  0.414  0.134  0.750  1.0
  Al  Al17  1  0.586  0.866  0.250  1.0
  Al  Al18  1  0.219  0.479  0.750  1.0
  Al  Al19  1  0.781  0.521  0.250  1.0
  Al  Al20  1  0.521  0.781  0.750  1.0
  Al  Al21  1  0.479  0.219  0.250  1.0
  Fe  Fe22  1  0.000  0.500  0.500  1.0
  Fe  Fe23  1  0.000  0.500  0.000  1.0
  Fe  Fe24  1  0.500  0.000  0.000  1.0
  Fe  Fe25  1  0.500  0.000  0.500  1.0
[/CIF]
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