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#$Date: 2016-02-18 13:08:31 +0200 (Thu, 18 Feb 2016) $
#$Revision: 176725 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/00/74/9007498.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_9007498
loop_
_publ_author_name
'Kirfel, A.'
'Eichhorn, K.'
_publ_section_title
;
 Accurate structure analysis with synchrotron radiation.
 The electron density in Al2O3 and Cu2O
 Locality: synthetic
;
_journal_name_full               'Acta Crystallographica, Section A'
_journal_page_first              271
_journal_page_last               284
_journal_volume                  46
_journal_year                    1990
_chemical_formula_sum            'Al2 O3'
_chemical_name_mineral           Corundum
_space_group_IT_number           167
_symmetry_space_group_name_Hall  '-R 3 2"c'
_symmetry_space_group_name_H-M   'R -3 c :H'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   4.7570
_cell_length_b                   4.7570
_cell_length_c                   12.9877
_cell_volume                     254.524
_exptl_crystal_density_diffrn    3.991
_cod_original_sg_symbol_H-M      'R -3 c'
_cod_database_code               9007498
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
2/3+x,1/3+y,1/3+z
1/3+x,2/3+y,2/3+z
x,x-y,1/2+z
2/3+x,1/3+x-y,5/6+z
1/3+x,2/3+x-y,1/6+z
y,x,1/2-z
2/3+y,1/3+x,5/6-z
1/3+y,2/3+x,1/6-z
-x+y,y,1/2+z
2/3-x+y,1/3+y,5/6+z
1/3-x+y,2/3+y,1/6+z
-x,-x+y,1/2-z
2/3-x,1/3-x+y,5/6-z
1/3-x,2/3-x+y,1/6-z
-y,-x,1/2+z
2/3-y,1/3-x,5/6+z
1/3-y,2/3-x,1/6+z
x-y,-y,1/2-z
2/3+x-y,1/3-y,5/6-z
1/3+x-y,2/3-y,1/6-z
y,-x+y,-z
2/3+y,1/3-x+y,1/3-z
1/3+y,2/3-x+y,2/3-z
-x+y,-x,z
2/3-x+y,1/3-x,1/3+z
1/3-x+y,2/3-x,2/3+z
-x,-y,-z
2/3-x,1/3-y,1/3-z
1/3-x,2/3-y,2/3-z
-y,x-y,z
2/3-y,1/3+x-y,1/3+z
1/3-y,2/3+x-y,2/3+z
x-y,x,-z
2/3+x-y,1/3+x,1/3-z
1/3+x-y,2/3+x,2/3-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
Al 0.00259 0.00259 0.00276 0.00129 0.00000 0.00000
O 0.00292 0.00325 0.00334 0.00146 0.00040 0.00079
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Al 0.00000 0.00000 0.35218
O 0.30625 0.00000 0.25000