data_global _amcsd_formula_title 'K0.8 Mg0.4 O4 Ti1.6' loop_ _publ_author_name 'Groult D' 'Mercey C' 'Raveau B' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 32 _journal_year 1980 _journal_page_first 289 _journal_page_last 296 _publ_section_title ; Nouveaux oxydes a structure en feuillets: Les titanates de potassium non-stoechiometriques KX (MY Ti2-Y) O4 _cod_database_code 1001129 ; _database_code_amcsd 0013383 _chemical_formula_sum 'K.4 (Mg.2 Ti.8) O2' _cell_length_a 3.8207 _cell_length_b 15.641 _cell_length_c 2.9814 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 178.167 _exptl_crystal_density_diffrn 3.385 _symmetry_space_group_name_H-M 'C m c 21' 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,z' '1/2-x,1/2+y,z' '-x,-y,1/2+z' '1/2-x,1/2-y,1/2+z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy K1 0.00000 0.00140 0.24300 0.40000 Mg1 0.00000 0.31360 0.63900 0.20000 Ti1 0.00000 0.31360 0.63900 0.80000 O1 0.00000 0.21780 0.14800 1.00000 O2 0.00000 0.38350 0.09600 1.00000