data_global
_amcsd_formula_title 'Fe12.91 Nd2 Si4.09'
loop_
_publ_author_name
'Long G'
'Marasinghe G'
'Mishra S'
'Pringle O'
'Grandjean F'
'Buschow K'
'Middleton D'
'Yelon W'
'Pourarian F'
'Isnard O'
_journal_name_full 'Solid State Communications'
_journal_volume 88 
_journal_year 1993
_journal_page_first 761
_journal_page_last 764
_publ_section_title
;
 A neutron diffraction and Mossbauer effect study of the Nd2Fe17-xSix
 solid solutions
 _cod_database_code 1008641
;
_database_code_amcsd 0016530
_chemical_formula_sum 'Nd2 Fe12.908 Si4.092'
_cell_length_a 8.5325
_cell_length_b 8.5325
_cell_length_c 12.4554
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 785.310
_exptl_crystal_density_diffrn      7.132
_symmetry_space_group_name_H-M 'R -3 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '2/3+x,1/3+y,1/3+z'
  '1/3+x,2/3+y,2/3+z'
  'x,x-y,z'
  '2/3+x,1/3+x-y,1/3+z'
  '1/3+x,2/3+x-y,2/3+z'
  'y,x,-z'
  '2/3+y,1/3+x,1/3-z'
  '1/3+y,2/3+x,2/3-z'
  '-x+y,y,z'
  '2/3-x+y,1/3+y,1/3+z'
  '1/3-x+y,2/3+y,2/3+z'
  '-x,-x+y,-z'
  '2/3-x,1/3-x+y,1/3-z'
  '1/3-x,2/3-x+y,2/3-z'
  '-y,-x,z'
  '2/3-y,1/3-x,1/3+z'
  '1/3-y,2/3-x,2/3+z'
  'x-y,-y,-z'
  '2/3+x-y,1/3-y,1/3-z'
  '1/3+x-y,2/3-y,2/3-z'
  'y,-x+y,-z'
  '2/3+y,1/3-x+y,1/3-z'
  '1/3+y,2/3-x+y,2/3-z'
  '-x+y,-x,z'
  '2/3-x+y,1/3-x,1/3+z'
  '1/3-x+y,2/3-x,2/3+z'
  '-x,-y,-z'
  '2/3-x,1/3-y,1/3-z'
  '1/3-x,2/3-y,2/3-z'
  '-y,x-y,z'
  '2/3-y,1/3+x-y,1/3+z'
  '1/3-y,2/3+x-y,2/3+z'
  'x-y,x,-z'
  '2/3+x-y,1/3+x,1/3-z'
  '1/3+x-y,2/3+x,2/3-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Nd1   0.00000   0.00000   0.34190   1.00000
Fe1   0.00000   0.00000   0.09610   1.00000
Fe2   0.50000   0.00000   0.50000   0.84800
Fe3   0.29180   0.00000   0.00000   0.79200
Fe4   0.50150   0.49850   0.15790   0.60200
Si1   0.50000   0.00000   0.50000   0.15200
Si2   0.29180   0.00000   0.00000   0.20800
Si3   0.50150   0.49850   0.15790   0.39800