data_global _amcsd_formula_title 'K2 O9 Si3 Ti' loop_ _publ_author_name 'Choisnet J' 'Deschanvres A' 'Raveau B' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 7 _journal_year 1973 _journal_page_first 408 _journal_page_last 417 _publ_section_title ; Evolution structural de nouveaux germanates et silicates de type Wadeite et de structure apparentee _cod_database_code 1001111 ; _database_code_amcsd 0013317 _chemical_formula_sum 'K2 Ti Si3 O9' _cell_length_a 6.774 _cell_length_b 6.774 _cell_length_c 9.922 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 394.294 _exptl_crystal_density_diffrn 2.984 _symmetry_space_group_name_H-M 'P 63/m' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x+y,-x,1/2-z' 'x-y,x,1/2+z' 'y,-x+y,-z' '-y,x-y,z' 'x,y,1/2-z' '-x,-y,1/2+z' 'x-y,x,-z' '-x+y,-x,z' '-y,x-y,1/2-z' 'y,-x+y,1/2+z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z K1 0.33333 0.66660 0.05930 Ti1 0.00000 0.00000 0.00000 Si1 0.37840 0.24370 0.25000 O1 0.49750 0.08650 0.25000 O2 0.25500 0.23070 0.11460