The material described by CeSbSe is Matlockite structured and crystallizes in the orthorhombic Pnma space group. Ce(1) is bonded in a 9-coordinate geometry to four equivalent Sb(1) and five equivalent Se(1) atoms. Sb(1) is bonded to four equivalent Ce(1) and four equivalent Sb(1) atoms to form distorted SbCe4Sb4 hexagonal bipyramids that share corners with four equivalent Sb(1)Ce4Sb4 hexagonal bipyramids, corners with twelve equivalent Se(1)Ce5 square pyramids, edges with four equivalent Sb(1)Ce4Sb4 hexagonal bipyramids, edges with four equivalent Se(1)Ce5 square pyramids, and faces with four equivalent Sb(1)Ce4Sb4 hexagonal bipyramids. Se(1) is bonded to five equivalent Ce(1) atoms to form distorted SeCe5 square pyramids that share corners with twelve equivalent Sb(1)Ce4Sb4 hexagonal bipyramids, corners with four equivalent Se(1)Ce5 square pyramids, edges with four equivalent Sb(1)Ce4Sb4 hexagonal bipyramids, and edges with eight equivalent Se(1)Ce5 square pyramids. is represented by the CIF file [CIF]
data_CeSbSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.241
_cell_length_b   4.245
_cell_length_c   9.120
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   164.166
_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
  Ce  Ce0  1  0.750  0.250  0.296  1.0
  Ce  Ce1  1  0.250  0.750  0.704  1.0
  Sb  Sb2  1  0.750  0.750  0.000  1.0
  Sb  Sb3  1  0.250  0.250  1.000  1.0
  Se  Se4  1  0.750  0.250  0.629  1.0
  Se  Se5  1  0.250  0.750  0.371  1.0
[/CIF]
.
The material described by CeSbSe is Matlockite structured and crystallizes in the orthorhombic Pnma space group. Ce(1) is bonded in a 9-coordinate geometry to four equivalent Sb(1) and five equivalent Se(1) atoms. Sb(1) is bonded to four equivalent Ce(1) and four equivalent Sb(1) atoms to form distorted SbCe4Sb4 hexagonal bipyramids that share corners with four equivalent Sb(1)Ce4Sb4 hexagonal bipyramids, corners with twelve equivalent Se(1)Ce5 square pyramids, edges with four equivalent Sb(1)Ce4Sb4 hexagonal bipyramids, edges with four equivalent Se(1)Ce5 square pyramids, and faces with four equivalent Sb(1)Ce4Sb4 hexagonal bipyramids. Se(1) is bonded to five equivalent Ce(1) atoms to form distorted SeCe5 square pyramids that share corners with twelve equivalent Sb(1)Ce4Sb4 hexagonal bipyramids, corners with four equivalent Se(1)Ce5 square pyramids, edges with four equivalent Sb(1)Ce4Sb4 hexagonal bipyramids, and edges with eight equivalent Se(1)Ce5 square pyramids. is represented by the CIF file [CIF]
data_CeSbSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.241
_cell_length_b   4.245
_cell_length_c   9.120
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   164.166
_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
  Ce  Ce0  1  0.750  0.250  0.296  1.0
  Ce  Ce1  1  0.250  0.750  0.704  1.0
  Sb  Sb2  1  0.750  0.750  0.000  1.0
  Sb  Sb3  1  0.250  0.250  1.000  1.0
  Se  Se4  1  0.750  0.250  0.629  1.0
  Se  Se5  1  0.250  0.750  0.371  1.0
[/CIF]
.