data_global
_amcsd_formula_title 'Ba Er2 Ni O5'
loop_
_publ_author_name
'Alonso J'
'Amador J'
'Rasines I'
'Soubeyroux J'
_journal_name_full 'Acta Crystallographica, Section C'
_journal_volume 47 
_journal_year 1991
_journal_page_first 249
_journal_page_last 251
_publ_section_title
;
 Er2BaNiO5: Structure refinement using neutron powder diffraction data
 _cod_database_code 1008460
;
_database_code_amcsd 0016364
_chemical_formula_sum 'Ba Er2 Ni O4.99'
_cell_length_a 3.7541
_cell_length_b 5.7442
_cell_length_c 11.3019
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 243.718
_exptl_crystal_density_diffrn      8.317
_symmetry_space_group_name_H-M 'I m m m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  'x,-y,z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,-z'
  '1/2-x,1/2+y,1/2-z'
  '-x,y,z'
  '1/2-x,1/2+y,1/2+z'
  'x,-y,-z'
  '1/2+x,1/2-y,1/2-z'
  'x,y,-z'
  '1/2+x,1/2+y,1/2-z'
  '-x,-y,z'
  '1/2-x,1/2-y,1/2+z'
  '-x,-y,-z'
  '1/2-x,1/2-y,1/2-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Ba1   0.00000   0.50000   0.00000   1.00000
Er1   0.00000   0.00000   0.20280   1.00000
Ni1   0.50000   0.00000   0.00000   1.00000
O1   0.50000   0.24180   0.14870   1.00000
O2   0.00000   0.00000   0.00000   0.99000