data_global _amcsd_formula_title 'Cu Nd2 O3.5' loop_ _publ_author_name 'Choisnet J' 'Mouron M' 'Crespin M' 'van Aken P' 'Mueller W' _journal_name_full 'Journal of Materials Chemistry' _journal_volume 4 _journal_year 1994 _journal_page_first 895 _journal_page_last 898 _publ_section_title ; Perovskite-like intergrowth structure of the reduced cuprate Nd2CuO3.5: a combination of defect and excess oxygen non-stoichiometry phenomena _cod_database_code 1001671 ; _database_code_amcsd 0013071 _chemical_formula_sum 'Nd2 Cu O3.5' _cell_length_a 4.237 _cell_length_b 3.7675 _cell_length_c 11.917 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 190.230 _exptl_crystal_density_diffrn 7.123 _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 Nd1 0.00000 0.00000 0.34810 1.00000 Cu1 0.00000 0.00000 0.00000 1.00000 O1 0.50000 0.00000 0.00000 0.90000 O2 0.00000 0.50000 0.00000 0.13000 O3 0.08900 0.05700 0.15100 0.23000 O4 0.50000 0.00000 0.26100 0.31500