data_global _amcsd_formula_title 'Ba2CoSi2O7' loop_ _publ_author_name 'Adams R D' 'Layland R' 'Payen C' 'Datta T' _journal_name_full 'Inorganic Chemistry' _journal_volume 35 _journal_year 1996 _journal_page_first 3492 _journal_page_last 3497 _publ_section_title ; Synthesis, structural analyses, and unusual magnetic properties of Ba2CoSi2O7 and BaCo2Si2O7 Note: Compound 1 ; _database_code_amcsd 0019236 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Ba2 Co Si2 O7' _cell_length_a 8.450 _cell_length_b 10.729 _cell_length_c 8.474 _cell_angle_alpha 90 _cell_angle_beta 111.365 _cell_angle_gamma 90 _cell_volume 715.458 _exptl_crystal_density_diffrn 4.658 _symmetry_space_group_name_H-M 'C 1 2/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '-x,y,1/2-z' '1/2-x,1/2+y,1/2-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_U_iso_or_equiv Ba 0.27393 0.45776 0.02623 0.00874 Co 0.00000 0.25820 0.25000 0.00887 Si 0.88620 0.28250 -0.13800 0.00735 O1 0.00000 0.33290 -0.25000 0.01520 O2 0.69980 0.34360 -0.23600 0.01013 O3 0.97270 0.35250 0.04320 0.01140 O4 0.89070 0.13240 -0.13220 0.01140