The crystal structure described by CsMnSe2 crystallizes in the tetragonal I-4m2 space group. Cs(1) is bonded in a body-centered cubic geometry to eight equivalent Se(1) atoms. Mn(1) is bonded to four equivalent Se(1) atoms to form corner-sharing MnSe4 tetrahedra. Se(1) is bonded in a distorted bent 120 degrees geometry to four equivalent Cs(1) and two equivalent Mn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_CsMnSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.774
_cell_length_b   7.774
_cell_length_c   7.774
_cell_angle_alpha   148.970
_cell_angle_beta   148.970
_cell_angle_gamma   44.455
_symmetry_Int_Tables_number   1
_cell_volume   124.454
_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
  Cs  Cs0  1  0.000  0.000  0.000  1.0
  Mn  Mn1  1  0.250  0.750  0.500  1.0
  Se  Se2  1  0.339  0.339  0.000  1.0
  Se  Se3  1  0.661  0.661  0.000  1.0
[/CIF]
.
The crystal structure described by CsMnSe2 crystallizes in the tetragonal I-4m2 space group. Cs(1) is bonded in a body-centered cubic geometry to eight equivalent Se(1) atoms. Mn(1) is bonded to four equivalent Se(1) atoms to form corner-sharing MnSe4 tetrahedra. Se(1) is bonded in a distorted bent 120 degrees geometry to four equivalent Cs(1) and two equivalent Mn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_CsMnSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.774
_cell_length_b   7.774
_cell_length_c   7.774
_cell_angle_alpha   148.970
_cell_angle_beta   148.970
_cell_angle_gamma   44.455
_symmetry_Int_Tables_number   1
_cell_volume   124.454
_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
  Cs  Cs0  1  0.000  0.000  0.000  1.0
  Mn  Mn1  1  0.250  0.750  0.500  1.0
  Se  Se2  1  0.339  0.339  0.000  1.0
  Se  Se3  1  0.661  0.661  0.000  1.0
[/CIF]
.