data_global
_amcsd_formula_title 'Na3Cr2(AsO4)3'
loop_
_publ_author_name
'Bouzemi B'
'Boughzala H'
'Jouini T'
_journal_name_full 'Acta Crystallographica, Section E'
_journal_volume 58 
_journal_year 2002
_journal_page_first i107
_journal_page_last i118
_publ_section_title
;
 Na3Cr2(AsO4)3: trisodium dichromium(III) triarsenate
 Note: garnet structure
;
_database_code_amcsd 0010392
_chemical_formula_sum 'Na3 Cr2 As3 O12'
_cell_length_a 12.188
_cell_length_b 12.188
_cell_length_c 12.188
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1810.495
_exptl_crystal_density_diffrn      4.327
_symmetry_space_group_name_H-M 'I a 3 d'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  'z,1/2-x,1/2+y'
  '1/2+z,-x,+y'
  '-y,1/2+z,1/2-x'
  '1/2-y,+z,-x'
  'x,1/2-y,1/2+z'
  '1/2+x,-y,+z'
  '-z,1/2+x,1/2-y'
  '1/2-z,+x,-y'
  'y,1/2-z,1/2+x'
  '1/2+y,-z,+x'
  '-x,1/2+y,1/2-z'
  '1/2-x,+y,-z'
  '3/4+x,1/4-z,3/4-y'
  '1/4+x,3/4-z,1/4-y'
  '3/4-z,1/4+y,3/4+x'
  '1/4-z,3/4+y,1/4+x'
  '3/4+y,1/4-x,3/4-z'
  '1/4+y,3/4-x,1/4-z'
  '3/4-x,1/4+z,3/4+y'
  '1/4-x,3/4+z,1/4+y'
  '3/4+z,1/4-y,3/4-x'
  '1/4+z,3/4-y,1/4-x'
  '3/4-y,1/4+x,3/4+z'
  '1/4-y,3/4+x,1/4+z'
  '1/4+x,1/4+z,1/4+y'
  '3/4+x,3/4+z,3/4+y'
  '1/4-z,1/4-y,1/4-x'
  '3/4-z,3/4-y,3/4-x'
  '1/4+y,1/4+x,1/4+z'
  '3/4+y,3/4+x,3/4+z'
  '1/4-x,1/4-z,1/4-y'
  '3/4-x,3/4-z,3/4-y'
  '1/4+z,1/4+y,1/4+x'
  '3/4+z,3/4+y,3/4+x'
  '1/4-y,1/4-x,1/4-z'
  '3/4-y,3/4-x,3/4-z'
  '1/2+z,x,1/2-y'
  '+z,1/2+x,-y'
  '1/2-y,-z,1/2+x'
  '-y,1/2-z,+x'
  '1/2+x,y,1/2-z'
  '+x,1/2+y,-z'
  '1/2-z,-x,1/2+y'
  '-z,1/2-x,+y'
  '1/2+y,z,1/2-x'
  '+y,1/2+z,-x'
  '1/2-x,-y,1/2+z'
  '-x,1/2-y,+z'
  '1/2-z,1/2+x,y'
  '-z,+x,1/2+y'
  '1/2+y,1/2-z,-x'
  '+y,-z,1/2-x'
  '1/2-x,1/2+y,z'
  '-x,+y,1/2+z'
  '1/2+z,1/2-x,-y'
  '+z,-x,1/2-y'
  '1/2-y,1/2+z,x'
  '-y,+z,1/2+x'
  '1/2+x,1/2-y,-z'
  '+x,-y,1/2-z'
  '3/4-x,3/4+z,1/4-y'
  '1/4-x,1/4+z,3/4-y'
  '3/4+z,3/4-y,1/4+x'
  '1/4+z,1/4-y,3/4+x'
  '3/4-y,3/4+x,1/4-z'
  '1/4-y,1/4+x,3/4-z'
  '3/4+x,3/4-z,1/4+y'
  '1/4+x,1/4-z,3/4+y'
  '3/4-z,3/4+y,1/4-x'
  '1/4-z,1/4+y,3/4-x'
  '3/4+y,3/4-x,1/4+z'
  '1/4+y,1/4-x,3/4+z'
  '1/4-x,3/4-z,3/4+y'
  '3/4-x,1/4-z,1/4+y'
  '1/4+z,3/4+y,3/4-x'
  '3/4+z,1/4+y,1/4-x'
  '1/4-y,3/4-x,3/4+z'
  '3/4-y,1/4-x,1/4+z'
  '1/4+x,3/4+z,3/4-y'
  '3/4+x,1/4+z,1/4-y'
  '1/4-z,3/4-y,3/4+x'
  '3/4-z,1/4-y,1/4+x'
  '1/4+y,3/4+x,3/4-z'
  '3/4+y,1/4+x,1/4-z'
  '-z,-x,-y'
  '1/2-z,1/2-x,1/2-y'
  'y,z,x'
  '1/2+y,1/2+z,1/2+x'
  '-x,-y,-z'
  '1/2-x,1/2-y,1/2-z'
  'z,x,y'
  '1/2+z,1/2+x,1/2+y'
  '-y,-z,-x'
  '1/2-y,1/2-z,1/2-x'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Na   0.12500   0.00000   0.25000   0.01120
Cr   0.25000   0.25000   0.25000   0.00340
As   0.37500   0.00000   0.25000   0.00339
O   0.28819  -0.09814   0.29743   0.00640
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
Na 0.00640 0.01360 0.01360 0.00000 0.00000 0.00110
Cr 0.00340 0.00340 0.00340 0.00020 0.00020 0.00020
As 0.00370 0.00320 0.00320 0.00000 0.00000 0.00000
O 0.00760 0.00460 0.00710 -0.00160 0.00170 0.00020