#------------------------------------------------------------------------------
#$Date: 2008-03-10 10:25:41 +0200 (Mon, 10 Mar 2008) $
#$Revision: 255 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/9004138.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_9004138
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 280 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            'Ti O2'
_chemical_name_mineral           Brookite
_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                   9.175
_cell_length_b                   5.459
_cell_length_c                   5.149
_cell_volume                     257.895
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_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Ti 0.12900 0.09850 0.86270
O1 0.00960 0.14900 0.18320
O2 0.23120 0.11180 0.53580
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 0.01237 0.00981 0.00645 -0.00051 0.00024 0.00000
O1 0.01066 0.13150 0.00833 -0.00203 0.00168 -0.00199
O2 0.01279 0.01329 0.00739 0.00203 0.00096 0.00114