The structure described by HoSeF crystallizes in the orthorhombic Pnma space group. There are three inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to one Se(1), two equivalent Se(3), and three equivalent Se(2) atoms to form HoSe6 octahedra that share corners with four equivalent Ho(3)Se2F6 hexagonal bipyramids, corners with two equivalent Ho(2)Se4F3 pentagonal bipyramids, edges with four equivalent Ho(1)Se6 octahedra, and edges with two equivalent Ho(2)Se4F3 pentagonal bipyramids. In the second Ho site, Ho(2) is bonded to two equivalent Se(1), two equivalent Se(3), one F(2), and two equivalent F(1) atoms to form distorted HoSe4F3 pentagonal bipyramids that share corners with two equivalent Ho(3)Se2F6 hexagonal bipyramids, corners with two equivalent Ho(1)Se6 octahedra, corners with two equivalent Ho(2)Se4F3 pentagonal bipyramids, edges with two equivalent Ho(3)Se2F6 hexagonal bipyramids, edges with two equivalent Ho(1)Se6 octahedra, and edges with two equivalent Ho(2)Se4F3 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 58°. In the third Ho site, Ho(3) is bonded to one Se(1), one Se(2), one F(1), two equivalent F(2), and three equivalent F(3) atoms to form HoSe2F6 hexagonal bipyramids that share corners with four equivalent Ho(1)Se6 octahedra, corners with two equivalent Ho(2)Se4F3 pentagonal bipyramids, edges with four equivalent Ho(3)Se2F6 hexagonal bipyramids, and edges with two equivalent Ho(2)Se4F3 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 54-62°. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a rectangular see-saw-like geometry to one Ho(1), one Ho(3), and two equivalent Ho(2) atoms. In the second Se site, Se(2) is bonded in a rectangular see-saw-like geometry to one Ho(3) and three equivalent Ho(1) atoms. In the third Se site, Se(3) is bonded to two equivalent Ho(1) and two equivalent Ho(2) atoms to form distorted corner-sharing SeHo4 trigonal pyramids. There are three inequivalent F sites. In the first F site, F(3) is bonded in a trigonal planar geometry to three equivalent Ho(3) atoms. In the second F site, F(1) is bonded in a trigonal planar geometry to one Ho(3) and two equivalent Ho(2) atoms. In the third F site, F(2) is bonded in a trigonal planar geometry to one Ho(2) and two equivalent Ho(3) atoms. is represented by the CIF card [CIF]
data_HoSeF
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.099
_cell_length_b   9.979
_cell_length_c   18.959
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   775.589
_cell_formula_units_Z   12
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  0.750  0.408  0.584  1.0
  Ho  Ho1  1  0.750  0.908  0.916  1.0
  Ho  Ho2  1  0.250  0.592  0.416  1.0
  Ho  Ho3  1  0.250  0.092  0.084  1.0
  Ho  Ho4  1  0.750  0.244  0.261  1.0
  Ho  Ho5  1  0.750  0.744  0.239  1.0
  Ho  Ho6  1  0.250  0.756  0.739  1.0
  Ho  Ho7  1  0.250  0.256  0.761  1.0
  Ho  Ho8  1  0.750  0.422  0.919  1.0
  Ho  Ho9  1  0.750  0.922  0.581  1.0
  Ho  Ho10  1  0.250  0.578  0.081  1.0
  Ho  Ho11  1  0.250  0.078  0.419  1.0
  Se  Se12  1  0.750  0.164  0.659  1.0
  Se  Se13  1  0.750  0.664  0.841  1.0
  Se  Se14  1  0.250  0.836  0.341  1.0
  Se  Se15  1  0.250  0.336  0.159  1.0
  Se  Se16  1  0.750  0.165  0.986  1.0
  Se  Se17  1  0.750  0.665  0.514  1.0
  Se  Se18  1  0.250  0.835  0.014  1.0
  Se  Se19  1  0.250  0.335  0.486  1.0
  Se  Se20  1  0.750  0.006  0.178  1.0
  Se  Se21  1  0.750  0.506  0.322  1.0
  Se  Se22  1  0.250  0.994  0.822  1.0
  Se  Se23  1  0.250  0.494  0.678  1.0
  F  F24  1  0.750  0.301  0.806  1.0
  F  F25  1  0.750  0.801  0.694  1.0
  F  F26  1  0.250  0.699  0.194  1.0
  F  F27  1  0.250  0.199  0.306  1.0
  F  F28  1  0.750  0.137  0.365  1.0
  F  F29  1  0.750  0.637  0.135  1.0
  F  F30  1  0.250  0.863  0.635  1.0
  F  F31  1  0.250  0.363  0.865  1.0
  F  F32  1  0.750  0.025  0.473  1.0
  F  F33  1  0.750  0.525  0.027  1.0
  F  F34  1  0.250  0.975  0.527  1.0
  F  F35  1  0.250  0.475  0.973  1.0
[/CIF]
.
The structure described by HoSeF crystallizes in the orthorhombic Pnma space group. There are three inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to one Se(1), two equivalent Se(3), and three equivalent Se(2) atoms to form HoSe6 octahedra that share corners with four equivalent Ho(3)Se2F6 hexagonal bipyramids, corners with two equivalent Ho(2)Se4F3 pentagonal bipyramids, edges with four equivalent Ho(1)Se6 octahedra, and edges with two equivalent Ho(2)Se4F3 pentagonal bipyramids. In the second Ho site, Ho(2) is bonded to two equivalent Se(1), two equivalent Se(3), one F(2), and two equivalent F(1) atoms to form distorted HoSe4F3 pentagonal bipyramids that share corners with two equivalent Ho(3)Se2F6 hexagonal bipyramids, corners with two equivalent Ho(1)Se6 octahedra, corners with two equivalent Ho(2)Se4F3 pentagonal bipyramids, edges with two equivalent Ho(3)Se2F6 hexagonal bipyramids, edges with two equivalent Ho(1)Se6 octahedra, and edges with two equivalent Ho(2)Se4F3 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 58°. In the third Ho site, Ho(3) is bonded to one Se(1), one Se(2), one F(1), two equivalent F(2), and three equivalent F(3) atoms to form HoSe2F6 hexagonal bipyramids that share corners with four equivalent Ho(1)Se6 octahedra, corners with two equivalent Ho(2)Se4F3 pentagonal bipyramids, edges with four equivalent Ho(3)Se2F6 hexagonal bipyramids, and edges with two equivalent Ho(2)Se4F3 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 54-62°. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a rectangular see-saw-like geometry to one Ho(1), one Ho(3), and two equivalent Ho(2) atoms. In the second Se site, Se(2) is bonded in a rectangular see-saw-like geometry to one Ho(3) and three equivalent Ho(1) atoms. In the third Se site, Se(3) is bonded to two equivalent Ho(1) and two equivalent Ho(2) atoms to form distorted corner-sharing SeHo4 trigonal pyramids. There are three inequivalent F sites. In the first F site, F(3) is bonded in a trigonal planar geometry to three equivalent Ho(3) atoms. In the second F site, F(1) is bonded in a trigonal planar geometry to one Ho(3) and two equivalent Ho(2) atoms. In the third F site, F(2) is bonded in a trigonal planar geometry to one Ho(2) and two equivalent Ho(3) atoms. is represented by the CIF card [CIF]
data_HoSeF
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.099
_cell_length_b   9.979
_cell_length_c   18.959
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   775.589
_cell_formula_units_Z   12
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  0.750  0.408  0.584  1.0
  Ho  Ho1  1  0.750  0.908  0.916  1.0
  Ho  Ho2  1  0.250  0.592  0.416  1.0
  Ho  Ho3  1  0.250  0.092  0.084  1.0
  Ho  Ho4  1  0.750  0.244  0.261  1.0
  Ho  Ho5  1  0.750  0.744  0.239  1.0
  Ho  Ho6  1  0.250  0.756  0.739  1.0
  Ho  Ho7  1  0.250  0.256  0.761  1.0
  Ho  Ho8  1  0.750  0.422  0.919  1.0
  Ho  Ho9  1  0.750  0.922  0.581  1.0
  Ho  Ho10  1  0.250  0.578  0.081  1.0
  Ho  Ho11  1  0.250  0.078  0.419  1.0
  Se  Se12  1  0.750  0.164  0.659  1.0
  Se  Se13  1  0.750  0.664  0.841  1.0
  Se  Se14  1  0.250  0.836  0.341  1.0
  Se  Se15  1  0.250  0.336  0.159  1.0
  Se  Se16  1  0.750  0.165  0.986  1.0
  Se  Se17  1  0.750  0.665  0.514  1.0
  Se  Se18  1  0.250  0.835  0.014  1.0
  Se  Se19  1  0.250  0.335  0.486  1.0
  Se  Se20  1  0.750  0.006  0.178  1.0
  Se  Se21  1  0.750  0.506  0.322  1.0
  Se  Se22  1  0.250  0.994  0.822  1.0
  Se  Se23  1  0.250  0.494  0.678  1.0
  F  F24  1  0.750  0.301  0.806  1.0
  F  F25  1  0.750  0.801  0.694  1.0
  F  F26  1  0.250  0.699  0.194  1.0
  F  F27  1  0.250  0.199  0.306  1.0
  F  F28  1  0.750  0.137  0.365  1.0
  F  F29  1  0.750  0.637  0.135  1.0
  F  F30  1  0.250  0.863  0.635  1.0
  F  F31  1  0.250  0.363  0.865  1.0
  F  F32  1  0.750  0.025  0.473  1.0
  F  F33  1  0.750  0.525  0.027  1.0
  F  F34  1  0.250  0.975  0.527  1.0
  F  F35  1  0.250  0.475  0.973  1.0
[/CIF]
.