data_global
_chemical_name_mineral 'Cupalite'
loop_
_publ_author_name
'El-Boragy M'
'Szepan R'
'Schubert K'
_journal_name_full 'Journal of the Less-Common Metals'
_journal_volume 29 
_journal_year 1972
_journal_page_first 133
_journal_page_last 140
_publ_section_title
;
 Kristallstruktur von Cu3Al2+ (h) und CuAl (r)
;
_database_code_amcsd 0020057
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Cu5 Al5'
_cell_length_a 9.889
_cell_length_b 4.105
_cell_length_c 6.913
_cell_angle_alpha 90
_cell_angle_beta 89.996
_cell_angle_gamma 90
_cell_volume 280.629
_exptl_crystal_density_diffrn      5.357
_symmetry_space_group_name_H-M 'I 1 2/m 1'
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'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Cu1   0.00000   0.00000   0.00000
Cu2   0.25600   0.00000   0.01600
Cu3   0.10900   0.00000   0.33700
Al1   0.00000   0.50000   0.50000
Al2   0.15500   0.00000   0.69800
Al3   0.38200   0.00000   0.39500