The material described by Fe(RhSe2)2 crystallizes in the triclinic P1 space group. Fe(1) is bonded to one Se(2), one Se(3), two equivalent Se(1), and two equivalent Se(4) atoms to form distorted FeSe6 octahedra that share corners with six equivalent Rh(2)Se6 octahedra, edges with two equivalent Fe(1)Se6 octahedra, edges with four equivalent Rh(1)Se6 octahedra, and  a faceface with one Rh(2)Se6 octahedra. The corner-sharing octahedral tilt angles range from 49-54°. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to one Se(1), one Se(4), two equivalent Se(2), and two equivalent Se(3) atoms to form distorted RhSe6 octahedra that share corners with six equivalent Rh(2)Se6 octahedra, edges with two equivalent Rh(1)Se6 octahedra, edges with four equivalent Fe(1)Se6 octahedra, and  a faceface with one Rh(2)Se6 octahedra. The corner-sharing octahedral tilt angles range from 50-56°. In the second Rh site, Rh(2) is bonded to one Se(1), one Se(2), two equivalent Se(3), and two equivalent Se(4) atoms to form distorted RhSe6 octahedra that share corners with six equivalent Fe(1)Se6 octahedra, corners with six equivalent Rh(1)Se6 octahedra, edges with two equivalent Rh(2)Se6 octahedra,  a faceface with one Fe(1)Se6 octahedra, and  a faceface with one Rh(1)Se6 octahedra. The corner-sharing octahedral tilt angles range from 49-56°. There are four inequivalent Se sites. In the first Se site, Se(1) is bonded to two equivalent Fe(1), one Rh(1), and one Rh(2) atom to form distorted corner-sharing SeFe2Rh2 trigonal pyramids. In the second Se site, Se(2) is bonded in a distorted rectangular see-saw-like geometry to one Fe(1), one Rh(2), and two equivalent Rh(1) atoms. In the third Se site, Se(3) is bonded in a 5-coordinate geometry to one Fe(1), two equivalent Rh(1), and two equivalent Rh(2) atoms. In the fourth Se site, Se(4) is bonded in a 5-coordinate geometry to two equivalent Fe(1), one Rh(1), and two equivalent Rh(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Fe(RhSe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.674
_cell_length_b   6.266
_cell_length_c   6.487
_cell_angle_alpha   115.872
_cell_angle_beta   73.624
_cell_angle_gamma   90.065
_symmetry_Int_Tables_number   1
_cell_volume   127.598
_cell_formula_units_Z   1
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
  Fe  Fe0  1  0.722  0.295  0.518  1.0
  Rh  Rh1  1  0.244  0.707  0.470  1.0
  Rh  Rh2  1  0.977  0.999  0.009  1.0
  Se  Se3  1  0.100  0.541  0.765  1.0
  Se  Se4  1  0.862  0.451  0.233  1.0
  Se  Se5  1  0.618  0.023  0.727  1.0
  Se  Se6  1  0.343  0.984  0.278  1.0
[/CIF]
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The material described by Fe(RhSe2)2 crystallizes in the triclinic P1 space group. Fe(1) is bonded to one Se(2), one Se(3), two equivalent Se(1), and two equivalent Se(4) atoms to form distorted FeSe6 octahedra that share corners with six equivalent Rh(2)Se6 octahedra, edges with two equivalent Fe(1)Se6 octahedra, edges with four equivalent Rh(1)Se6 octahedra, and  a faceface with one Rh(2)Se6 octahedra. The corner-sharing octahedral tilt angles range from 49-54°. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to one Se(1), one Se(4), two equivalent Se(2), and two equivalent Se(3) atoms to form distorted RhSe6 octahedra that share corners with six equivalent Rh(2)Se6 octahedra, edges with two equivalent Rh(1)Se6 octahedra, edges with four equivalent Fe(1)Se6 octahedra, and  a faceface with one Rh(2)Se6 octahedra. The corner-sharing octahedral tilt angles range from 50-56°. In the second Rh site, Rh(2) is bonded to one Se(1), one Se(2), two equivalent Se(3), and two equivalent Se(4) atoms to form distorted RhSe6 octahedra that share corners with six equivalent Fe(1)Se6 octahedra, corners with six equivalent Rh(1)Se6 octahedra, edges with two equivalent Rh(2)Se6 octahedra,  a faceface with one Fe(1)Se6 octahedra, and  a faceface with one Rh(1)Se6 octahedra. The corner-sharing octahedral tilt angles range from 49-56°. There are four inequivalent Se sites. In the first Se site, Se(1) is bonded to two equivalent Fe(1), one Rh(1), and one Rh(2) atom to form distorted corner-sharing SeFe2Rh2 trigonal pyramids. In the second Se site, Se(2) is bonded in a distorted rectangular see-saw-like geometry to one Fe(1), one Rh(2), and two equivalent Rh(1) atoms. In the third Se site, Se(3) is bonded in a 5-coordinate geometry to one Fe(1), two equivalent Rh(1), and two equivalent Rh(2) atoms. In the fourth Se site, Se(4) is bonded in a 5-coordinate geometry to two equivalent Fe(1), one Rh(1), and two equivalent Rh(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Fe(RhSe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.674
_cell_length_b   6.266
_cell_length_c   6.487
_cell_angle_alpha   115.872
_cell_angle_beta   73.624
_cell_angle_gamma   90.065
_symmetry_Int_Tables_number   1
_cell_volume   127.598
_cell_formula_units_Z   1
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
  Fe  Fe0  1  0.722  0.295  0.518  1.0
  Rh  Rh1  1  0.244  0.707  0.470  1.0
  Rh  Rh2  1  0.977  0.999  0.009  1.0
  Se  Se3  1  0.100  0.541  0.765  1.0
  Se  Se4  1  0.862  0.451  0.233  1.0
  Se  Se5  1  0.618  0.023  0.727  1.0
  Se  Se6  1  0.343  0.984  0.278  1.0
[/CIF]
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