data_global
_amcsd_formula_title 'Ag8GeTe6'
loop_
_publ_author_name
'Geller S'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 149 
_journal_year 1979
_journal_page_first 31
_journal_page_last 47
_publ_section_title
;
 The crystal structure of gamma Ag8GeTe6, a potential mixed electronic-
 ionic conductor
 Note: proposed model, R = 8.0%
;
_database_code_amcsd 0010803
_chemical_formula_sum 'Ag7.946 Ge Te6'
_cell_length_a 11.58
_cell_length_b 11.58
_cell_length_c 11.58
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1552.836
_exptl_crystal_density_diffrn      7.252
_symmetry_space_group_name_H-M 'F -4 3 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2+y,1/2+z'
  '1/2+x,y,1/2+z'
  '1/2+x,1/2+y,z'
  '-z,x,-y'
  '-z,1/2+x,1/2-y'
  '1/2-z,x,1/2-y'
  '1/2-z,1/2+x,-y'
  '-y,z,-x'
  '-y,1/2+z,1/2-x'
  '1/2-y,z,1/2-x'
  '1/2-y,1/2+z,-x'
  '-x,y,-z'
  '-x,1/2+y,1/2-z'
  '1/2-x,y,1/2-z'
  '1/2-x,1/2+y,-z'
  'x,-z,-y'
  'x,1/2-z,1/2-y'
  '1/2+x,-z,1/2-y'
  '1/2+x,1/2-z,-y'
  'z,-y,-x'
  'z,1/2-y,1/2-x'
  '1/2+z,-y,1/2-x'
  '1/2+z,1/2-y,-x'
  'y,-x,-z'
  'y,1/2-x,1/2-z'
  '1/2+y,-x,1/2-z'
  '1/2+y,1/2-x,-z'
  'x,z,y'
  'x,1/2+z,1/2+y'
  '1/2+x,z,1/2+y'
  '1/2+x,1/2+z,y'
  'z,y,x'
  'z,1/2+y,1/2+x'
  '1/2+z,y,1/2+x'
  '1/2+z,1/2+y,x'
  'y,x,z'
  'y,1/2+x,1/2+z'
  '1/2+y,x,1/2+z'
  '1/2+y,1/2+x,z'
  '-z,-x,y'
  '-z,1/2-x,1/2+y'
  '1/2-z,-x,1/2+y'
  '1/2-z,1/2-x,y'
  '-y,-z,x'
  '-y,1/2-z,1/2+x'
  '1/2-y,-z,1/2+x'
  '1/2-y,1/2-z,x'
  '-x,-y,z'
  '-x,1/2-y,1/2+z'
  '1/2-x,-y,1/2+z'
  '1/2-x,1/2-y,z'
  'z,-x,-y'
  'z,1/2-x,1/2-y'
  '1/2+z,-x,1/2-y'
  '1/2+z,1/2-x,-y'
  'y,-z,-x'
  'y,1/2-z,1/2-x'
  '1/2+y,-z,1/2-x'
  '1/2+y,1/2-z,-x'
  'x,-y,-z'
  'x,1/2-y,1/2-z'
  '1/2+x,-y,1/2-z'
  '1/2+x,1/2-y,-z'
  '-x,z,-y'
  '-x,1/2+z,1/2-y'
  '1/2-x,z,1/2-y'
  '1/2-x,1/2+z,-y'
  '-z,y,-x'
  '-z,1/2+y,1/2-x'
  '1/2-z,y,1/2-x'
  '1/2-z,1/2+y,-x'
  '-y,x,-z'
  '-y,1/2+x,1/2-z'
  '1/2-y,x,1/2-z'
  '1/2-y,1/2+x,-z'
  '-x,-z,y'
  '-x,1/2-z,1/2+y'
  '1/2-x,-z,1/2+y'
  '1/2-x,1/2-z,y'
  '-z,-y,x'
  '-z,1/2-y,1/2+x'
  '1/2-z,-y,1/2+x'
  '1/2-z,1/2-y,x'
  '-y,-x,z'
  '-y,1/2-x,1/2+z'
  '1/2-y,-x,1/2+z'
  '1/2-y,1/2-x,z'
  'z,x,y'
  'z,1/2+x,1/2+y'
  '1/2+z,x,1/2+y'
  '1/2+z,1/2+x,y'
  'y,z,x'
  'y,1/2+z,1/2+x'
  '1/2+y,z,1/2+x'
  '1/2+y,1/2+z,x'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Ag1   0.92900   0.92900   0.23800   0.35900 ?
Ag2   0.28700   0.28700   0.03700   0.06900   0.05066
Ag3   0.37900   0.37900   0.37900   0.06500   0.02533
Ag5   0.50000   0.50000   0.50000   0.22200   0.07599
Ag1-2   0.10400   0.22000   0.06700   0.06000   0.03800
Ag1-1   0.00000   0.00000   0.21300   0.10400   0.05066
Ag1-3   0.10500   0.10500   0.30000   0.02200   0.03800
Ge   0.75000   0.75000   0.75000   1.00000 ?
Te1   0.62330   0.62330   0.62330   1.00000 ?
Te2   0.00000   0.00000   0.00000   1.00000 ?
Te3   0.25000   0.25000   0.25000   1.00000 ?
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Ag1 0.11209 0.11209 0.11617 0.04552 -0.05503 -0.05503
Ge 0.02310 0.02310 0.02310 0.00000 0.00000 0.00000
Te1 0.03193 0.03193 0.03193 -0.00476 -0.00476 -0.00476
Te2 0.08831 0.08831 0.08831 0.00000 0.00000 0.00000
Te3 0.07133 0.07133 0.07133 0.00000 0.00000 0.00000