data_1008045 _chemical_name_systematic 'Potassium trithulium fluoride - $-beta' _chemical_formula_structural 'K Tm3 F10' _chemical_formula_sum 'F10 K Tm3' _publ_section_title ; Quelques Fluorures Mixtes Terre Rare - Metal Alcalin de Structures derivees de celle de la Fluorine ; loop_ _publ_author_name 'Aleonard, S' 'le=Fur, Y' 'Pontonnier, L' 'Gorius, M F' 'Roux, M T' _journal_name_full 'Annales de Chimie (Paris) (Vol=Year)' _journal_coden_ASTM ANCPAC _journal_volume 1978 _journal_year 1978 _journal_page_first 417 _journal_page_last 427 _cell_length_a 20.9 _cell_length_b 8.2 _cell_length_c 20.9 _cell_angle_alpha 90 _cell_angle_beta 109.5 _cell_angle_gamma 90 _cell_volume 3376.4 _cell_formula_units_Z 18