data_global _amcsd_formula_title 'As K Sn' loop_ _publ_author_name 'Klein J' 'Eisenmann B' _journal_name_full 'Materials Research Bulletin' _journal_volume 23 _journal_year 1988 _journal_page_first 587 _journal_page_last 594 _publ_section_title ; Zintl-Phasen mit komplexen Anionen: Darstellung und Einkristallstrukturbestimmung von KSnAs und K6Sn3As5 _cod_database_code 1008518 ; _database_code_amcsd 0016411 _chemical_formula_sum 'K Sn As' _cell_length_a 4.102 _cell_length_b 4.102 _cell_length_c 12.816 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 186.756 _exptl_crystal_density_diffrn 4.139 _symmetry_space_group_name_H-M 'P 63 m c' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-x+y,1/2+z' 'x-y,x,1/2+z' '-y,-x,z' '-y,x-y,z' 'x-y,-y,1/2+z' '-x,-y,1/2+z' 'x,x-y,z' '-x+y,-x,z' 'y,x,1/2+z' 'y,-x+y,1/2+z' '-x+y,y,z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z K1 0.33333 0.66667 0.00000 Sn1 0.00000 0.00000 0.28230 As1 0.33333 0.66667 0.67950