#------------------------------------------------------------------------------ #$Date: 2008-01-14 00:15:36 +0200 (Mon, 14 Jan 2008) $ #$Revision: 14 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1000410.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_1000410 _chemical_name_systematic 'Thallium tetrafluoroaluminate - III' _chemical_formula_structural 'Tl (Al F4)' _chemical_formula_sum 'Al F4 Tl' _publ_section_title ; Structural phase transitions in ferroelastic Tl Al F4: DSC investigations and structures determinations by neutron powder profile refinement ; loop_ _publ_author_name 'Bulou, A' 'Nouet, J' _journal_name_full 'Journal of Physics C' _journal_coden_ASTM JPSOAW _journal_volume 20 _journal_year 1987 _journal_page_first 2885 _journal_page_last 2900 _cell_length_a 5.1010(3) _cell_length_b 5.0745(3) _cell_length_c 12.6324(7) _cell_angle_alpha 90 _cell_angle_beta 90.355(8) _cell_angle_gamma 90 _cell_volume 327.0 _cell_formula_units_Z 4 _symmetry_space_group_name_H-M 'I 1 2/a 1' _symmetry_Int_Tables_number 15 _symmetry_cell_setting monoclinic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '1/2-x,y,-z' '-x,-y,-z' '1/2+x,-y,z' '1/2+x,1/2+y,1/2+z' '-x,1/2+y,1/2-z' '1/2-x,1/2-y,1/2-z' 'x,1/2-y,1/2+z' loop_ _atom_type_symbol _atom_type_oxidation_number Tl1+ 1.000 Al3+ 3.000 F1- -1.000 loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_calc_flag Tl1 Tl1+ 4 e 0.25 0.0132(5) 0.5 1. 0 d Al1 Al3+ 4 a 0. 0. 0. 1. 0 d F1 F1- 8 f 0.2757(8) 0.2223(8) 0.0195(3) 1. 0 d F2 F1- 8 f -0.003(1) -0.0619(6) 0.1376(2) 1. 0 d _refine_ls_R_factor_all 0.0463