The structure described by CsAgSe4 crystallizes in the orthorhombic P2_12_12_1 space group. Cs(1) is bonded in a 13-coordinate geometry to two equivalent Ag(1), two equivalent Se(4), three equivalent Se(1), three equivalent Se(2), and three equivalent Se(3) atoms. Ag(1) is bonded to two equivalent Cs(1), one Se(2), one Se(3), one Se(4), and two equivalent Se(1) atoms to form distorted corner-sharing AgCs2Se5 tetrahedra. There are four inequivalent Se sites. In the first Se site, Se(1) is bonded in a 2-coordinate geometry to three equivalent Cs(1), two equivalent Ag(1), and one Se(2) atom. In the second Se site, Se(2) is bonded in a 6-coordinate geometry to three equivalent Cs(1), one Ag(1), one Se(1), and one Se(4) atom. In the third Se site, Se(3) is bonded in a 5-coordinate geometry to three equivalent Cs(1), one Ag(1), and one Se(4) atom. In the fourth Se site, Se(4) is bonded in a 5-coordinate geometry to two equivalent Cs(1), one Ag(1), one Se(2), and one Se(3) atom. is represented by the CIF card [CIF]
data_CsAgSe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.852
_cell_length_b   9.254
_cell_length_c   14.108
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   764.009
_cell_formula_units_Z   4
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  0.337  0.559  0.667  1.0
  Cs  Cs1  1  0.837  0.941  0.333  1.0
  Cs  Cs2  1  0.663  0.059  0.833  1.0
  Cs  Cs3  1  0.163  0.441  0.167  1.0
  Ag  Ag4  1  0.546  0.127  0.557  1.0
  Ag  Ag5  1  0.046  0.373  0.443  1.0
  Ag  Ag6  1  0.454  0.627  0.943  1.0
  Ag  Ag7  1  0.954  0.873  0.057  1.0
  Se  Se8  1  0.874  0.304  0.609  1.0
  Se  Se9  1  0.374  0.196  0.391  1.0
  Se  Se10  1  0.126  0.804  0.891  1.0
  Se  Se11  1  0.626  0.696  0.109  1.0
  Se  Se12  1  0.141  0.134  0.669  1.0
  Se  Se13  1  0.641  0.366  0.331  1.0
  Se  Se14  1  0.859  0.634  0.831  1.0
  Se  Se15  1  0.359  0.866  0.169  1.0
  Se  Se16  1  0.799  0.132  0.096  1.0
  Se  Se17  1  0.299  0.368  0.904  1.0
  Se  Se18  1  0.201  0.632  0.404  1.0
  Se  Se19  1  0.701  0.868  0.596  1.0
  Se  Se20  1  0.410  0.076  0.073  1.0
  Se  Se21  1  0.910  0.424  0.927  1.0
  Se  Se22  1  0.590  0.576  0.427  1.0
  Se  Se23  1  0.090  0.924  0.573  1.0
[/CIF]
.
The structure described by CsAgSe4 crystallizes in the orthorhombic P2_12_12_1 space group. Cs(1) is bonded in a 13-coordinate geometry to two equivalent Ag(1), two equivalent Se(4), three equivalent Se(1), three equivalent Se(2), and three equivalent Se(3) atoms. Ag(1) is bonded to two equivalent Cs(1), one Se(2), one Se(3), one Se(4), and two equivalent Se(1) atoms to form distorted corner-sharing AgCs2Se5 tetrahedra. There are four inequivalent Se sites. In the first Se site, Se(1) is bonded in a 2-coordinate geometry to three equivalent Cs(1), two equivalent Ag(1), and one Se(2) atom. In the second Se site, Se(2) is bonded in a 6-coordinate geometry to three equivalent Cs(1), one Ag(1), one Se(1), and one Se(4) atom. In the third Se site, Se(3) is bonded in a 5-coordinate geometry to three equivalent Cs(1), one Ag(1), and one Se(4) atom. In the fourth Se site, Se(4) is bonded in a 5-coordinate geometry to two equivalent Cs(1), one Ag(1), one Se(2), and one Se(3) atom. is represented by the CIF card [CIF]
data_CsAgSe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.852
_cell_length_b   9.254
_cell_length_c   14.108
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   764.009
_cell_formula_units_Z   4
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  0.337  0.559  0.667  1.0
  Cs  Cs1  1  0.837  0.941  0.333  1.0
  Cs  Cs2  1  0.663  0.059  0.833  1.0
  Cs  Cs3  1  0.163  0.441  0.167  1.0
  Ag  Ag4  1  0.546  0.127  0.557  1.0
  Ag  Ag5  1  0.046  0.373  0.443  1.0
  Ag  Ag6  1  0.454  0.627  0.943  1.0
  Ag  Ag7  1  0.954  0.873  0.057  1.0
  Se  Se8  1  0.874  0.304  0.609  1.0
  Se  Se9  1  0.374  0.196  0.391  1.0
  Se  Se10  1  0.126  0.804  0.891  1.0
  Se  Se11  1  0.626  0.696  0.109  1.0
  Se  Se12  1  0.141  0.134  0.669  1.0
  Se  Se13  1  0.641  0.366  0.331  1.0
  Se  Se14  1  0.859  0.634  0.831  1.0
  Se  Se15  1  0.359  0.866  0.169  1.0
  Se  Se16  1  0.799  0.132  0.096  1.0
  Se  Se17  1  0.299  0.368  0.904  1.0
  Se  Se18  1  0.201  0.632  0.404  1.0
  Se  Se19  1  0.701  0.868  0.596  1.0
  Se  Se20  1  0.410  0.076  0.073  1.0
  Se  Se21  1  0.910  0.424  0.927  1.0
  Se  Se22  1  0.590  0.576  0.427  1.0
  Se  Se23  1  0.090  0.924  0.573  1.0
[/CIF]
.