data_global
_amcsd_formula_title 'Ba Cu Er2 O5'
loop_
_publ_author_name
'Salinas-Sanchez A'
'Garcia-Munoz J'
'Rodriguez-Carvajal J'
'Saez-Puche R'
'Martinez J'
_journal_name_full 'Journal of Solid State Chemistry'
_journal_volume 100 
_journal_year 1992
_journal_page_first 201
_journal_page_last 211
_publ_section_title
;
 Structural characterization of R2BaCuO5
 (R=Y,Lu,Yb,Tm,Er,Ho,Dy,Gd,Eu and Sm) oxides by X-ray and neutron diffraction
 _cod_database_code 1006054
;
_database_code_amcsd 0013745
_chemical_formula_sum 'Ba Er2 Cu O5'
_cell_length_a 12.1423
_cell_length_b 5.6459
_cell_length_c 7.1072
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 487.228
_exptl_crystal_density_diffrn      8.389
_symmetry_space_group_name_H-M 'P n m a'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '1/2-x,1/2+y,1/2+z'
  '1/2+x,1/2-y,1/2-z'
  '1/2+x,y,1/2-z'
  '1/2-x,-y,1/2+z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Ba1   0.90570   0.25000   0.93070
Er1   0.28850   0.25000   0.11710
Er2   0.07430   0.25000   0.39650
Cu1   0.65990   0.25000   0.71230
O1   0.43330  -0.00760   0.16610
O2   0.22830   0.50240   0.35710
O3   0.10080   0.25000   0.08320