data_global _amcsd_formula_title 'KHCO3' loop_ _publ_author_name 'Allan D R' 'Marshall W G' 'Pulham C R' _journal_name_full 'American Mineralogist' _journal_volume 92 _journal_year 2007 _journal_page_first 1018 _journal_page_last 1025 _publ_section_title ; The high-pressure crystal structure of potassium hydrogen carbonate (KHCO3) Sample: P = 7.61 GPa ; _database_code_amcsd 0004379 _chemical_formula_sum 'K D C O3' _cell_length_a 5.9935 _cell_length_b 5.2346 _cell_length_c 4.1889 _cell_angle_alpha 95.298 _cell_angle_beta 100.273 _cell_angle_gamma 108.498 _cell_volume 121.061 _exptl_crystal_density_diffrn 2.774 _symmetry_space_group_name_H-M 'P -1' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z K 0.30100 0.13200 0.29400 D 0.08600 0.70900 0.53300 C 0.23320 0.57000 0.90900 O1 0.20400 0.77400 0.74700 O2 0.11300 0.33000 0.76800 O3 0.37600 0.63500 0.18000