The structure described by RbUAgSe3 crystallizes in the orthorhombic Cmcm space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent Se(2) and six equivalent Se(1) atoms. U(1) is bonded to two equivalent Se(2) and four equivalent Se(1) 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 39°. 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 three equivalent Rb(1), two equivalent U(1), and one Ag(1) atom. In the second Se site, Se(2) is bonded in a 6-coordinate geometry to two equivalent Rb(1), two equivalent U(1), and two equivalent Ag(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbUAgSe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.006
_cell_length_b   8.006
_cell_length_c   10.921
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   149.024
_symmetry_Int_Tables_number   1
_cell_volume   360.265
_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
  Rb  Rb0  1  0.746  0.254  0.250  1.0
  Rb  Rb1  1  0.254  0.746  0.750  1.0
  U  U2  1  0.000  0.000  0.500  1.0
  U  U3  1  0.000  0.000  0.000  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  0.622  0.378  0.540  1.0
  Se  Se7  1  0.378  0.622  0.460  1.0
  Se  Se8  1  0.378  0.622  0.040  1.0
  Se  Se9  1  0.937  0.063  0.750  1.0
  Se  Se10  1  0.063  0.937  0.250  1.0
  Se  Se11  1  0.622  0.378  0.960  1.0
[/CIF]
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The structure described by RbUAgSe3 crystallizes in the orthorhombic Cmcm space group. Rb(1) is bonded in a 8-coordinate geometry to two equivalent Se(2) and six equivalent Se(1) atoms. U(1) is bonded to two equivalent Se(2) and four equivalent Se(1) 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 39°. 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 three equivalent Rb(1), two equivalent U(1), and one Ag(1) atom. In the second Se site, Se(2) is bonded in a 6-coordinate geometry to two equivalent Rb(1), two equivalent U(1), and two equivalent Ag(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbUAgSe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.006
_cell_length_b   8.006
_cell_length_c   10.921
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   149.024
_symmetry_Int_Tables_number   1
_cell_volume   360.265
_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
  Rb  Rb0  1  0.746  0.254  0.250  1.0
  Rb  Rb1  1  0.254  0.746  0.750  1.0
  U  U2  1  0.000  0.000  0.500  1.0
  U  U3  1  0.000  0.000  0.000  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  0.622  0.378  0.540  1.0
  Se  Se7  1  0.378  0.622  0.460  1.0
  Se  Se8  1  0.378  0.622  0.040  1.0
  Se  Se9  1  0.937  0.063  0.750  1.0
  Se  Se10  1  0.063  0.937  0.250  1.0
  Se  Se11  1  0.622  0.378  0.960  1.0
[/CIF]
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