The crystal structure described by Ho3FeB7 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 11-coordinate geometry to two equivalent B(2), two equivalent B(4), three equivalent B(1), and four equivalent B(3) atoms. In the second Ho site, Ho(2) is bonded in a 10-coordinate geometry to four equivalent B(2) and six equivalent B(1) atoms. Fe(1) is bonded in a 10-coordinate geometry to two equivalent B(4), four equivalent B(2), and four equivalent B(3) atoms. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 9-coordinate geometry to three equivalent Ho(1), three equivalent Ho(2), one B(2), and two equivalent B(1) atoms. In the second B site, B(2) is bonded in a 9-coordinate geometry to two equivalent Ho(1), two equivalent Ho(2), two equivalent Fe(1), one B(1), one B(2), and one B(3) atom. In the third B site, B(3) is bonded in a 9-coordinate geometry to four equivalent Ho(1), two equivalent Fe(1), one B(2), one B(3), and one B(4) atom. In the fourth B site, B(4) is bonded in a 8-coordinate geometry to four equivalent Ho(1), two equivalent Fe(1), and two equivalent B(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ho3FeB7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.985
_cell_length_b   7.985
_cell_length_c   9.251
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   155.395
_symmetry_Int_Tables_number   1
_cell_volume   245.594
_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  0.895  0.105  0.440  1.0
  Ho  Ho1  1  0.105  0.895  0.560  1.0
  Ho  Ho2  1  0.895  0.105  0.060  1.0
  Ho  Ho3  1  0.105  0.895  0.940  1.0
  Ho  Ho4  1  0.243  0.757  0.250  1.0
  Ho  Ho5  1  0.757  0.243  0.750  1.0
  Fe  Fe6  1  0.054  0.946  0.250  1.0
  Fe  Fe7  1  0.946  0.054  0.750  1.0
  B  B8  1  0.728  0.272  0.467  1.0
  B  B9  1  0.272  0.728  0.533  1.0
  B  B10  1  0.728  0.272  0.033  1.0
  B  B11  1  0.272  0.728  0.967  1.0
  B  B12  1  0.630  0.370  0.153  1.0
  B  B13  1  0.370  0.630  0.847  1.0
  B  B14  1  0.630  0.370  0.347  1.0
  B  B15  1  0.370  0.630  0.653  1.0
  B  B16  1  0.521  0.479  0.098  1.0
  B  B17  1  0.479  0.521  0.902  1.0
  B  B18  1  0.521  0.479  0.402  1.0
  B  B19  1  0.479  0.521  0.598  1.0
  B  B20  1  0.459  0.541  0.250  1.0
  B  B21  1  0.541  0.459  0.750  1.0
[/CIF]
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The crystal structure described by Ho3FeB7 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 11-coordinate geometry to two equivalent B(2), two equivalent B(4), three equivalent B(1), and four equivalent B(3) atoms. In the second Ho site, Ho(2) is bonded in a 10-coordinate geometry to four equivalent B(2) and six equivalent B(1) atoms. Fe(1) is bonded in a 10-coordinate geometry to two equivalent B(4), four equivalent B(2), and four equivalent B(3) atoms. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 9-coordinate geometry to three equivalent Ho(1), three equivalent Ho(2), one B(2), and two equivalent B(1) atoms. In the second B site, B(2) is bonded in a 9-coordinate geometry to two equivalent Ho(1), two equivalent Ho(2), two equivalent Fe(1), one B(1), one B(2), and one B(3) atom. In the third B site, B(3) is bonded in a 9-coordinate geometry to four equivalent Ho(1), two equivalent Fe(1), one B(2), one B(3), and one B(4) atom. In the fourth B site, B(4) is bonded in a 8-coordinate geometry to four equivalent Ho(1), two equivalent Fe(1), and two equivalent B(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ho3FeB7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.985
_cell_length_b   7.985
_cell_length_c   9.251
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   155.395
_symmetry_Int_Tables_number   1
_cell_volume   245.594
_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  0.895  0.105  0.440  1.0
  Ho  Ho1  1  0.105  0.895  0.560  1.0
  Ho  Ho2  1  0.895  0.105  0.060  1.0
  Ho  Ho3  1  0.105  0.895  0.940  1.0
  Ho  Ho4  1  0.243  0.757  0.250  1.0
  Ho  Ho5  1  0.757  0.243  0.750  1.0
  Fe  Fe6  1  0.054  0.946  0.250  1.0
  Fe  Fe7  1  0.946  0.054  0.750  1.0
  B  B8  1  0.728  0.272  0.467  1.0
  B  B9  1  0.272  0.728  0.533  1.0
  B  B10  1  0.728  0.272  0.033  1.0
  B  B11  1  0.272  0.728  0.967  1.0
  B  B12  1  0.630  0.370  0.153  1.0
  B  B13  1  0.370  0.630  0.847  1.0
  B  B14  1  0.630  0.370  0.347  1.0
  B  B15  1  0.370  0.630  0.653  1.0
  B  B16  1  0.521  0.479  0.098  1.0
  B  B17  1  0.479  0.521  0.902  1.0
  B  B18  1  0.521  0.479  0.402  1.0
  B  B19  1  0.479  0.521  0.598  1.0
  B  B20  1  0.459  0.541  0.250  1.0
  B  B21  1  0.541  0.459  0.750  1.0
[/CIF]
.