data_global _amcsd_formula_title 'K2CO3' loop_ _publ_author_name 'Idemoto Y' 'Richardson J W' 'Koura N' 'Kohara S' 'Loong C K' _journal_name_full 'Journal of Physics and Chemistry of Solids' _journal_volume 59 _journal_year 1998 _journal_page_first 363 _journal_page_last 376 _publ_section_title ; Crystal structure of (LixK1-x)2CO3 (x = 0,0.43,0.5,0.62,1) by neutron powder diffraction analysis Sample: single crystal X-ray diffraction refinement Note: y(K1) changed to match reported bond lengths ; _database_code_amcsd 0013250 _chemical_formula_sum 'K2 C O3' _cell_length_a 5.64 _cell_length_b 9.80 _cell_length_c 6.88 _cell_angle_alpha 90 _cell_angle_beta 98.8 _cell_angle_gamma 90 _cell_volume 375.795 _exptl_crystal_density_diffrn 2.443 _symmetry_space_group_name_H-M 'P 1 21/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,1/2+z' '-x,1/2+y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv K1 0.24180 0.08310 0.21440 0.03749 K2 0.73910 0.25070 0.97540 0.03154 C 0.25000 0.42000 0.24300 0.03268 O1 0.73500 0.04400 0.19900 0.04369 O2 0.06300 0.34800 0.27600 0.03850 O3 0.42100 0.36200 0.17300 0.04711