#------------------------------------------------------------------------------ #$Date: 2016-02-16 14:49:47 +0200 (Tue, 16 Feb 2016) $ #$Revision: 176465 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/00/41/9004137.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided the American Mineralogist Crystal Structure Database, # http://rruff.geo.arizona.edu/AMS/amcsd.php # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_9004137 loop_ _publ_author_name 'Meagher, E. P.' 'Lager, G. A.' _publ_section_title ; Polyhedral thermal expansion in the TiO2 polymorphs: Refinement of the crystal structures of rutile and brookite at high temperature Sample at 25 degrees C ; _journal_name_full 'The Canadian Mineralogist' _journal_page_first 77 _journal_page_last 85 _journal_volume 17 _journal_year 1979 _chemical_formula_sum 'O2 Ti' _chemical_name_mineral Brookite _space_group_IT_number 61 _symmetry_space_group_name_Hall '-P 2ac 2ab' _symmetry_space_group_name_H-M 'P b c a' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_length_a 9.174 _cell_length_b 5.449 _cell_length_c 5.138 _cell_volume 256.844 _exptl_crystal_density_diffrn 4.131 _cod_original_formula_sum 'Ti O2' _cod_database_code 9004137 loop_ _symmetry_equiv_pos_as_xyz x,y,z x,1/2-y,1/2+z -x,1/2+y,1/2-z 1/2-x,1/2+y,z 1/2+x,1/2-y,-z 1/2+x,y,1/2-z 1/2-x,-y,1/2+z -x,-y,-z loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Ti 0.00554 0.00572 0.00294 0.00000 0.00024 -0.00028 O1 0.00725 0.00677 0.00348 -0.00101 0.00167 -0.00113 O2 0.00298 0.01143 0.00588 0.00152 0.00119 0.00184 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ti 0.12890 0.09720 0.86280 O1 0.00950 0.14910 0.18350 O2 0.23140 0.11100 0.53660