The compound described by Zn2AgGaSe4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Ag(1) is bonded to four equivalent Se(1) atoms to form AgSe4 tetrahedra that share corners with four equivalent Ga(1)Se4 tetrahedra and corners with eight equivalent Zn(1)Se4 tetrahedra. Zn(1) is bonded to four equivalent Se(1) atoms to form ZnSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra, corners with four equivalent Zn(1)Se4 tetrahedra, and corners with four equivalent Ga(1)Se4 tetrahedra. Ga(1) is bonded to four equivalent Se(1) atoms to form GaSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra and corners with eight equivalent Zn(1)Se4 tetrahedra. Se(1) is bonded to one Ag(1), two equivalent Zn(1), and one Ga(1) atom to form corner-sharing SeZn2GaAg tetrahedra. is represented by the CIF card [CIF]
data_Zn2GaAgSe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.065
_cell_length_b   7.065
_cell_length_c   7.065
_cell_angle_alpha   130.775
_cell_angle_beta   130.775
_cell_angle_gamma   72.171
_symmetry_Int_Tables_number   1
_cell_volume   197.703
_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  0.250  0.750  0.500  1.0
  Zn  Zn1  1  0.750  0.250  0.500  1.0
  Ga  Ga2  1  0.000  0.000  0.000  1.0
  Ag  Ag3  1  0.500  0.500  0.000  1.0
  Se  Se4  1  0.893  0.365  0.000  1.0
  Se  Se5  1  0.365  0.893  0.000  1.0
  Se  Se6  1  0.635  0.635  0.528  1.0
  Se  Se7  1  0.107  0.107  0.472  1.0
[/CIF]
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The compound described by Zn2AgGaSe4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Ag(1) is bonded to four equivalent Se(1) atoms to form AgSe4 tetrahedra that share corners with four equivalent Ga(1)Se4 tetrahedra and corners with eight equivalent Zn(1)Se4 tetrahedra. Zn(1) is bonded to four equivalent Se(1) atoms to form ZnSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra, corners with four equivalent Zn(1)Se4 tetrahedra, and corners with four equivalent Ga(1)Se4 tetrahedra. Ga(1) is bonded to four equivalent Se(1) atoms to form GaSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra and corners with eight equivalent Zn(1)Se4 tetrahedra. Se(1) is bonded to one Ag(1), two equivalent Zn(1), and one Ga(1) atom to form corner-sharing SeZn2GaAg tetrahedra. is represented by the CIF card [CIF]
data_Zn2GaAgSe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.065
_cell_length_b   7.065
_cell_length_c   7.065
_cell_angle_alpha   130.775
_cell_angle_beta   130.775
_cell_angle_gamma   72.171
_symmetry_Int_Tables_number   1
_cell_volume   197.703
_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  0.250  0.750  0.500  1.0
  Zn  Zn1  1  0.750  0.250  0.500  1.0
  Ga  Ga2  1  0.000  0.000  0.000  1.0
  Ag  Ag3  1  0.500  0.500  0.000  1.0
  Se  Se4  1  0.893  0.365  0.000  1.0
  Se  Se5  1  0.365  0.893  0.000  1.0
  Se  Se6  1  0.635  0.635  0.528  1.0
  Se  Se7  1  0.107  0.107  0.472  1.0
[/CIF]
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