#------------------------------------------------------------------------------ #$Date: 2012-02-28 17:44:07 +0200 (Tue, 28 Feb 2012) $ #$Revision: 35913 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/00/41/9004139.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_9004139 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 425 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 9.191 _cell_length_b 5.463 _cell_length_c 5.157 _cell_volume 258.935 _exptl_crystal_density_diffrn 4.098 _[local]_cod_chemical_formula_sum_orig 'Ti O2' _cod_database_code 9004139 _amcsd_database_code AMCSD#0005122 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 0.01541 0.01225 0.00808 -0.00051 0.00096 0.00014 O1 0.01455 0.01603 0.01064 -0.00305 0.00264 -0.00228 O2 0.01541 0.01799 0.00943 0.00382 0.00240 0.00214 loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ti 0.12890 0.09920 0.86280 O1 0.00980 0.14900 0.18380 O2 0.23120 0.11160 0.53620