data_global _amcsd_formula_title 'Ag As2 Cu H3 O8' loop_ _publ_author_name 'Boudjada A' 'Masse R' 'Guitel J' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 38 _journal_year 1982 _journal_page_first 710 _journal_page_last 713 _publ_section_title ; Structure Cristalline d'un Orthoarseniate Acide Mixte de Cuivre(II)- Argent: Cu Ag H3 (As O4)2 _cod_database_code 1008183 ; _database_code_amcsd 0016120 _chemical_formula_sum 'Ag As2 Cu O8' _cell_length_a 9.716 _cell_length_b 7.704 _cell_length_c 9.209 _cell_angle_alpha 90 _cell_angle_beta 103.73 _cell_angle_gamma 90 _cell_volume 669.615 _exptl_crystal_density_diffrn 4.456 _symmetry_space_group_name_H-M 'P 1 21/a 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ag1 0.97033 0.75150 0.22363 As1 0.82207 0.30320 0.07017 As2 0.29450 0.50920 0.47073 Cu1 0.49180 0.17800 0.40480 O1 0.92240 0.11930 0.07980 O2 0.87820 0.43460 0.21570 O3 0.65590 0.23440 0.04300 O4 0.84610 0.40050 -0.08930 O5 0.34710 0.46930 0.66220 O6 0.33930 0.34410 0.37680 O7 0.11570 0.52830 0.42700 O8 0.37640 0.69380 0.44050