The compound described by NaCuSe is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Na(1) is bonded in a 9-coordinate geometry to four equivalent Cu(1) and five equivalent Se(1) atoms. Cu(1) is bonded in a 4-coordinate geometry to four equivalent Na(1) and four equivalent Se(1) atoms. Se(1) is bonded in a 9-coordinate geometry to five equivalent Na(1) and four equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_NaCuSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.045
_cell_length_b   4.045
_cell_length_c   6.805
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   111.361
_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
  Na  Na0  1  0.250  0.250  0.163  1.0
  Na  Na1  1  0.750  0.750  0.837  1.0
  Cu  Cu2  1  0.750  0.250  0.500  1.0
  Cu  Cu3  1  0.250  0.750  0.500  1.0
  Se  Se4  1  0.250  0.250  0.724  1.0
  Se  Se5  1  0.750  0.750  0.276  1.0
[/CIF]
.
The compound described by NaCuSe is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Na(1) is bonded in a 9-coordinate geometry to four equivalent Cu(1) and five equivalent Se(1) atoms. Cu(1) is bonded in a 4-coordinate geometry to four equivalent Na(1) and four equivalent Se(1) atoms. Se(1) is bonded in a 9-coordinate geometry to five equivalent Na(1) and four equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_NaCuSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.045
_cell_length_b   4.045
_cell_length_c   6.805
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   111.361
_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
  Na  Na0  1  0.250  0.250  0.163  1.0
  Na  Na1  1  0.750  0.750  0.837  1.0
  Cu  Cu2  1  0.750  0.250  0.500  1.0
  Cu  Cu3  1  0.250  0.750  0.500  1.0
  Se  Se4  1  0.250  0.250  0.724  1.0
  Se  Se5  1  0.750  0.750  0.276  1.0
[/CIF]
.