data_global
_amcsd_formula_title 'Ca0.2 Cr0.15 Cu2.85 O8 Pb1.75 Sr2 Y'
loop_
_publ_author_name
'Seshadri R'
'Maignan A'
'Hervieu M'
'Martin C'
'Raveau B'
'Rao C'
_journal_name_full 'Journal of Solid State Chemistry'
_journal_volume 127 
_journal_year 1996
_journal_page_first 64
_journal_page_last 71
_publ_section_title
;
 Substitution of chromium for univalent copper in superconducting
 Pb2Sr2(Ca,Y)Cu3O8+d
 _cod_database_code 1001749
;
_database_code_amcsd 0013903
_chemical_formula_sum 'Pb1.75 Ca.2 Sr2 Y Cu2.85 Cr.15 O8'
_cell_length_a 5.3860
_cell_length_b 5.4195
_cell_length_c 15.720
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 458.858
_exptl_crystal_density_diffrn      6.888
_symmetry_space_group_name_H-M 'C m m m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,z'
  '1/2+x,1/2-y,z'
  '-x,y,-z'
  '1/2-x,1/2+y,-z'
  '-x,y,z'
  '1/2-x,1/2+y,z'
  'x,-y,-z'
  '1/2+x,1/2-y,-z'
  'x,y,-z'
  '1/2+x,1/2+y,-z'
  '-x,-y,z'
  '1/2-x,1/2-y,z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Pb1   0.00000   0.50000   0.38700   0.87500
Ca1   0.00000   0.50000   0.38700   0.10000
Sr1   0.00000   0.00000   0.22080   1.00000
Y1   0.00000   0.00000   0.00000   1.00000
Cu1   0.00000   0.00000   0.50000   0.85000
Cr1   0.00000   0.00000   0.50000   0.15000
Cu2   0.00000   0.50000   0.10840   1.00000
O1   0.00000   0.50000   0.26250   1.00000
O2   0.00000   0.00000   0.38500   1.00000
O3   0.25000   0.25000   0.10070   1.00000