The material structure described by CsUAgSe3 crystallizes in the orthorhombic Cmcm space group. Cs(1) is bonded in a 8-coordinate geometry to two equivalent Se(1) and six equivalent Se(2) atoms. U(1) is bonded to two equivalent Se(1) and four equivalent Se(2) atoms to form USe6 octahedra that share corners with two equivalent U(1)Se6 octahedra, edges with two equivalent U(1)Se6 octahedra, and edges with four equivalent Ag(1)Se4 tetrahedra. The corner-sharing octahedral tilt angles are 38°. Ag(1) is bonded to two equivalent Se(1) and two equivalent Se(2) atoms to form AgSe4 tetrahedra that share corners with two equivalent Ag(1)Se4 tetrahedra and edges with four equivalent U(1)Se6 octahedra. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a 6-coordinate geometry to two equivalent Cs(1), two equivalent U(1), and two equivalent Ag(1) atoms. In the second Se site, Se(2) is bonded in a 6-coordinate geometry to three equivalent Cs(1), two equivalent U(1), and one Ag(1) atom. is represented by the CIF card [CIF]
data_CsUAgSe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.300
_cell_length_b   8.300
_cell_length_c   10.942
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   150.058
_symmetry_Int_Tables_number   1
_cell_volume   376.256
_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
  Cs  Cs0  1  0.255  0.745  0.750  1.0
  Cs  Cs1  1  0.745  0.255  0.250  1.0
  U  U2  1  0.000  0.000  0.000  1.0
  U  U3  1  0.000  0.000  0.500  1.0
  Ag  Ag4  1  0.541  0.459  0.750  1.0
  Ag  Ag5  1  0.459  0.541  0.250  1.0
  Se  Se6  1  0.941  0.059  0.750  1.0
  Se  Se7  1  0.059  0.941  0.250  1.0
  Se  Se8  1  0.617  0.383  0.962  1.0
  Se  Se9  1  0.383  0.617  0.038  1.0
  Se  Se10  1  0.383  0.617  0.462  1.0
  Se  Se11  1  0.617  0.383  0.538  1.0
[/CIF]
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The material structure described by CsUAgSe3 crystallizes in the orthorhombic Cmcm space group. Cs(1) is bonded in a 8-coordinate geometry to two equivalent Se(1) and six equivalent Se(2) atoms. U(1) is bonded to two equivalent Se(1) and four equivalent Se(2) atoms to form USe6 octahedra that share corners with two equivalent U(1)Se6 octahedra, edges with two equivalent U(1)Se6 octahedra, and edges with four equivalent Ag(1)Se4 tetrahedra. The corner-sharing octahedral tilt angles are 38°. Ag(1) is bonded to two equivalent Se(1) and two equivalent Se(2) atoms to form AgSe4 tetrahedra that share corners with two equivalent Ag(1)Se4 tetrahedra and edges with four equivalent U(1)Se6 octahedra. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a 6-coordinate geometry to two equivalent Cs(1), two equivalent U(1), and two equivalent Ag(1) atoms. In the second Se site, Se(2) is bonded in a 6-coordinate geometry to three equivalent Cs(1), two equivalent U(1), and one Ag(1) atom. is represented by the CIF card [CIF]
data_CsUAgSe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.300
_cell_length_b   8.300
_cell_length_c   10.942
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   150.058
_symmetry_Int_Tables_number   1
_cell_volume   376.256
_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
  Cs  Cs0  1  0.255  0.745  0.750  1.0
  Cs  Cs1  1  0.745  0.255  0.250  1.0
  U  U2  1  0.000  0.000  0.000  1.0
  U  U3  1  0.000  0.000  0.500  1.0
  Ag  Ag4  1  0.541  0.459  0.750  1.0
  Ag  Ag5  1  0.459  0.541  0.250  1.0
  Se  Se6  1  0.941  0.059  0.750  1.0
  Se  Se7  1  0.059  0.941  0.250  1.0
  Se  Se8  1  0.617  0.383  0.962  1.0
  Se  Se9  1  0.383  0.617  0.038  1.0
  Se  Se10  1  0.383  0.617  0.462  1.0
  Se  Se11  1  0.617  0.383  0.538  1.0
[/CIF]
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