The compound described by Zn2TeSe is Lavarevi\'{c}ite-like structured and crystallizes in the trigonal R3m space group. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to three equivalent Te(1) and one Se(1) atom to form ZnTe3Se tetrahedra that share corners with six equivalent Zn(1)Te3Se tetrahedra and corners with six equivalent Zn(2)TeSe3 tetrahedra. In the second Zn site, Zn(2) is bonded to one Te(1) and three equivalent Se(1) atoms to form ZnTeSe3 tetrahedra that share corners with six equivalent Zn(1)Te3Se tetrahedra and corners with six equivalent Zn(2)TeSe3 tetrahedra. Te(1) is bonded to one Zn(2) and three equivalent Zn(1) atoms to form TeZn4 tetrahedra that share corners with six equivalent Te(1)Zn4 tetrahedra and corners with six equivalent Se(1)Zn4 tetrahedra. Se(1) is bonded to one Zn(1) and three equivalent Zn(2) atoms to form SeZn4 tetrahedra that share corners with six equivalent Te(1)Zn4 tetrahedra and corners with six equivalent Se(1)Zn4 tetrahedra. is represented by the CIF file [CIF]
data_Zn2TeSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.301
_cell_length_b   7.301
_cell_length_c   7.301
_cell_angle_alpha   33.641
_cell_angle_beta   33.641
_cell_angle_gamma   33.641
_symmetry_Int_Tables_number   1
_cell_volume   106.398
_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
  Zn  Zn0  1  0.995  0.995  0.995  1.0
  Zn  Zn1  1  0.505  0.505  0.505  1.0
  Te  Te2  1  0.375  0.375  0.375  1.0
  Se  Se3  1  0.875  0.875  0.875  1.0
[/CIF]
.
The compound described by Zn2TeSe is Lavarevi\'{c}ite-like structured and crystallizes in the trigonal R3m space group. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to three equivalent Te(1) and one Se(1) atom to form ZnTe3Se tetrahedra that share corners with six equivalent Zn(1)Te3Se tetrahedra and corners with six equivalent Zn(2)TeSe3 tetrahedra. In the second Zn site, Zn(2) is bonded to one Te(1) and three equivalent Se(1) atoms to form ZnTeSe3 tetrahedra that share corners with six equivalent Zn(1)Te3Se tetrahedra and corners with six equivalent Zn(2)TeSe3 tetrahedra. Te(1) is bonded to one Zn(2) and three equivalent Zn(1) atoms to form TeZn4 tetrahedra that share corners with six equivalent Te(1)Zn4 tetrahedra and corners with six equivalent Se(1)Zn4 tetrahedra. Se(1) is bonded to one Zn(1) and three equivalent Zn(2) atoms to form SeZn4 tetrahedra that share corners with six equivalent Te(1)Zn4 tetrahedra and corners with six equivalent Se(1)Zn4 tetrahedra. is represented by the CIF file [CIF]
data_Zn2TeSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.301
_cell_length_b   7.301
_cell_length_c   7.301
_cell_angle_alpha   33.641
_cell_angle_beta   33.641
_cell_angle_gamma   33.641
_symmetry_Int_Tables_number   1
_cell_volume   106.398
_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
  Zn  Zn0  1  0.995  0.995  0.995  1.0
  Zn  Zn1  1  0.505  0.505  0.505  1.0
  Te  Te2  1  0.375  0.375  0.375  1.0
  Se  Se3  1  0.875  0.875  0.875  1.0
[/CIF]
.