data_global _chemical_name_mineral 'Fluocerite-(Ce)' loop_ _publ_author_name 'Cheetham A K' 'Fender B E F' 'Fuess H' 'Wright A F' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 32 _journal_year 1976 _journal_page_first 94 _journal_page_last 97 _publ_section_title ; A powder neutron diffraction study of lanthanum and cerium trifluorides ; _database_code_amcsd 0009548 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Ce F3' _cell_length_a 7.131 _cell_length_b 7.131 _cell_length_c 7.286 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 320.864 _exptl_crystal_density_diffrn 6.121 _symmetry_space_group_name_H-M 'P -3 c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '-y,-x,1/2+z' 'y,-x+y,-z' '-x,-x+y,1/2-z' '-x+y,-x,z' '-x+y,y,1/2+z' '-x,-y,-z' 'y,x,1/2-z' '-y,x-y,z' 'x,x-y,1/2+z' 'x-y,x,-z' 'x-y,-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Ce 0.66070 0.00000 0.25000 0.00367 F1 0.36590 0.05400 0.08240 0.01482 F2 0.33333 0.66667 0.18710 0.01279 F3 0.00000 0.00000 0.25000 0.02026