The crystal structure described by RbSmSe2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. Rb(1) is bonded to six equivalent Se(1) atoms to form distorted RbSe6 octahedra that share corners with six equivalent Sm(1)Se6 octahedra, edges with six equivalent Rb(1)Se6 octahedra, and edges with six equivalent Sm(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 11°. Sm(1) is bonded to six equivalent Se(1) atoms to form SmSe6 octahedra that share corners with six equivalent Rb(1)Se6 octahedra, edges with six equivalent Rb(1)Se6 octahedra, and edges with six equivalent Sm(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 11°. Se(1) is bonded to three equivalent Rb(1) and three equivalent Sm(1) atoms to form a mixture of corner and edge-sharing SeRb3Sm3 octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbSmSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.331
_cell_length_b   8.331
_cell_length_c   8.331
_cell_angle_alpha   30.006
_cell_angle_beta   30.006
_cell_angle_gamma   30.006
_symmetry_Int_Tables_number   1
_cell_volume   128.112
_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
  Rb  Rb0  1  0.000  0.000  0.000  1.0
  Sm  Sm1  1  0.500  0.500  0.500  1.0
  Se  Se2  1  0.233  0.233  0.233  1.0
  Se  Se3  1  0.767  0.767  0.767  1.0
[/CIF]
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The crystal structure described by RbSmSe2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. Rb(1) is bonded to six equivalent Se(1) atoms to form distorted RbSe6 octahedra that share corners with six equivalent Sm(1)Se6 octahedra, edges with six equivalent Rb(1)Se6 octahedra, and edges with six equivalent Sm(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 11°. Sm(1) is bonded to six equivalent Se(1) atoms to form SmSe6 octahedra that share corners with six equivalent Rb(1)Se6 octahedra, edges with six equivalent Rb(1)Se6 octahedra, and edges with six equivalent Sm(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 11°. Se(1) is bonded to three equivalent Rb(1) and three equivalent Sm(1) atoms to form a mixture of corner and edge-sharing SeRb3Sm3 octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbSmSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.331
_cell_length_b   8.331
_cell_length_c   8.331
_cell_angle_alpha   30.006
_cell_angle_beta   30.006
_cell_angle_gamma   30.006
_symmetry_Int_Tables_number   1
_cell_volume   128.112
_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
  Rb  Rb0  1  0.000  0.000  0.000  1.0
  Sm  Sm1  1  0.500  0.500  0.500  1.0
  Se  Se2  1  0.233  0.233  0.233  1.0
  Se  Se3  1  0.767  0.767  0.767  1.0
[/CIF]
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