The crystal structure described by Ho3Fe2Si3 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 9-coordinate geometry to four equivalent Fe(1), two equivalent Si(2), and three equivalent Si(1) atoms. In the second Ho site, Ho(2) is bonded in a 10-coordinate geometry to four equivalent Fe(1), two equivalent Si(1), and five equivalent Si(2) atoms. Fe(1) is bonded in a 10-coordinate geometry to two equivalent Ho(1), four equivalent Ho(2), one Si(1), and three equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to three equivalent Ho(1), four equivalent Ho(2), and two equivalent Fe(1) atoms. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to one Ho(1), five equivalent Ho(2), three equivalent Fe(1), and one Si(2) atom. is represented by the CIF file [CIF]
data_Ho3Fe2Si3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.630
_cell_length_b   5.630
_cell_length_c   13.562
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   137.641
_symmetry_Int_Tables_number   1
_cell_volume   289.618
_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  0.638  0.362  0.250  1.0
  Ho  Ho1  1  0.362  0.638  0.750  1.0
  Ho  Ho2  1  0.921  0.079  0.113  1.0
  Ho  Ho3  1  0.079  0.921  0.887  1.0
  Ho  Ho4  1  0.079  0.921  0.613  1.0
  Ho  Ho5  1  0.921  0.079  0.387  1.0
  Fe  Fe6  1  0.785  0.215  0.580  1.0
  Fe  Fe7  1  0.215  0.785  0.420  1.0
  Fe  Fe8  1  0.215  0.785  0.080  1.0
  Fe  Fe9  1  0.785  0.215  0.920  1.0
  Si  Si10  1  0.327  0.673  0.250  1.0
  Si  Si11  1  0.673  0.327  0.750  1.0
  Si  Si12  1  0.624  0.376  0.039  1.0
  Si  Si13  1  0.376  0.624  0.961  1.0
  Si  Si14  1  0.376  0.624  0.539  1.0
  Si  Si15  1  0.624  0.376  0.461  1.0
[/CIF]
.
The crystal structure described by Ho3Fe2Si3 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 9-coordinate geometry to four equivalent Fe(1), two equivalent Si(2), and three equivalent Si(1) atoms. In the second Ho site, Ho(2) is bonded in a 10-coordinate geometry to four equivalent Fe(1), two equivalent Si(1), and five equivalent Si(2) atoms. Fe(1) is bonded in a 10-coordinate geometry to two equivalent Ho(1), four equivalent Ho(2), one Si(1), and three equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to three equivalent Ho(1), four equivalent Ho(2), and two equivalent Fe(1) atoms. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to one Ho(1), five equivalent Ho(2), three equivalent Fe(1), and one Si(2) atom. is represented by the CIF file [CIF]
data_Ho3Fe2Si3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.630
_cell_length_b   5.630
_cell_length_c   13.562
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   137.641
_symmetry_Int_Tables_number   1
_cell_volume   289.618
_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  0.638  0.362  0.250  1.0
  Ho  Ho1  1  0.362  0.638  0.750  1.0
  Ho  Ho2  1  0.921  0.079  0.113  1.0
  Ho  Ho3  1  0.079  0.921  0.887  1.0
  Ho  Ho4  1  0.079  0.921  0.613  1.0
  Ho  Ho5  1  0.921  0.079  0.387  1.0
  Fe  Fe6  1  0.785  0.215  0.580  1.0
  Fe  Fe7  1  0.215  0.785  0.420  1.0
  Fe  Fe8  1  0.215  0.785  0.080  1.0
  Fe  Fe9  1  0.785  0.215  0.920  1.0
  Si  Si10  1  0.327  0.673  0.250  1.0
  Si  Si11  1  0.673  0.327  0.750  1.0
  Si  Si12  1  0.624  0.376  0.039  1.0
  Si  Si13  1  0.376  0.624  0.961  1.0
  Si  Si14  1  0.376  0.624  0.539  1.0
  Si  Si15  1  0.624  0.376  0.461  1.0
[/CIF]
.