#------------------------------------------------------------------------------ #$Date: 2012-02-28 14:14:52 +0200 (Tue, 28 Feb 2012) $ #$Revision: 35911 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/01/1000110.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_1000110 _chemical_name_systematic 'Aluminium trifluoride - t' _chemical_formula_structural 'Al F3' _chemical_formula_sum 'Al F3' _publ_section_title ; t-AlF~3~: crystal structure determination from X-ray powder diffraction data. A new MX~3~ corner-sharing octahedra 3D network ; _space_group_IT_number 129 _symmetry_space_group_name_Hall '-P 4a 2a' _symmetry_space_group_name_H-M 'P 4/n m m :2' _[local]_cod_cif_authors_sg_H-M 'P 4/n m m Z' loop_ _publ_author_name 'Le Bail, A' 'Fourquet, J L' 'Bentrup, U' _journal_name_full 'Journal of Solid State Chemistry' _journal_coden_ASTM JSSCBI _journal_volume 100 _journal_year 1992 _journal_page_first 151 _journal_page_last 159 _cell_length_a 10.1843(3) _cell_length_b 10.1843(3) _cell_length_c 7.1738(2) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 744.1 _cell_formula_units_Z 16 _symmetry_cell_setting tetragonal loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '1/2-x,y,z' 'x,1/2-y,z' '1/2-x,1/2-y,z' 'y,x,z' '1/2-y,x,z' 'y,1/2-x,z' '1/2-y,1/2-x,z' '-x,-y,-z' '1/2+x,-y,-z' '-x,1/2+y,-z' '1/2+x,1/2+y,-z' '-y,-x,-z' '1/2+y,-x,-z' '-y,1/2+x,-z' '1/2+y,1/2+x,-z' loop_ _atom_type_symbol _atom_type_oxidation_number 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 Al1 Al3+ 4 d 0. 0. 0. 1. 0 d Al2 Al3+ 8 i 0.25 0.9135(2) 0.3287(3) 1. 0 d Al3 Al3+ 2 c 0.25 0.25 0.4121(4) 1. 0 d Al4 Al3+ 2 c 0.25 0.25 0.9082(4) 1. 0 d F1 F1- 16 k 0.6216(2) 0.0524(2) 0.8390(3) 1. 0 d F2 F1- 8 i 0.25 0.0781(3) 0.4105(4) 1. 0 d F3 F1- 8 j 0.1215(2) 0.1215(2) 0.9089(3) 1. 0 d F4 F1- 8 h 0.1267(2) 0.8733(2) 0.5 1. 0 d F5 F1- 4 f 0.75 0.25 0.2442(7) 1. 0 d F6 F1- 2 c 0.25 0.25 0.6633(7) 1. 0 d F7 F1- 2 c 0.25 0.25 0.1606(8) 1. 0 d loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_22 _atom_site_aniso_U_23 _atom_site_aniso_U_33 Al1 0.0131(9) 0.0043(15) -0.0008(8) 0.0131(9) -0.0008(8) 0.0163(15) Al2 0.0159(10) 0. 0. 0.0184(12) 0.0029(10) 0.0178(10) Al3 0.0137(15) 0. 0. 0.0137(15) 0. 0.0138(20) Al4 0.0124(11) 0. 0. 0.0124(11) 0. 0.0051(17) F1 0.0182(15) 0.002(1) -0.0001(11) 0.0174(14) 0.0044(11) 0.0154(12) F2 0.0315(21) 0. 0. 0.0275(23) -0.0006(18) 0.0176(20) F3 0.0205(14) -0.0006(14) 0.0027(10) 0.0205(14) 0.0027(10) 0.0143(19) F4 0.0261(18) -0.0069(18) 0.0014(10) 0.0261(18) 0.0014(10) 0.0124(18) F5 0.0083(30) 0. 0. 0.0184(32) 0. 0.0186(24) F6 0.0112(23) 0. 0. 0.0112(23) 0. 0.0301(33) F7 0.0142(23) 0. 0. 0.0142(23) 0. 0.0327(36) _refine_ls_R_factor_all 0.024 _cod_database_code 1000110