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#$Date: 2016-02-13 14:50:18 +0200 (Sat, 13 Feb 2016) $
#$Revision: 176428 $
#$URL: svn://www.crystallography.net/cod/cif/1/54/15/1541582.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_1541582
loop_
_publ_author_name
'Shirasuka, K.'
'Yanagida, H.'
'Yamaguchi, G.'
_publ_section_title
;
 The Preparation of η Alumina and its Structure
;
_journal_coden_ASTM              YGKSA4
_journal_issue                   976
_journal_name_full               'Journal of the Ceramic Association, Japan'
_journal_page_first              610
_journal_page_last               613
_journal_paper_doi               10.2109/jcersj1950.84.976_610
_journal_volume                  84
_journal_year                    1976
_chemical_formula_sum            'Al2.66 O4'
_space_group_IT_number           227
_symmetry_space_group_name_Hall  'F 4d 2 3 -1d'
_symmetry_space_group_name_H-M   'F d -3 m :1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.906
_cell_length_b                   7.906
_cell_length_c                   7.906
_cell_volume                     494.163
_citation_journal_id_ASTM        YGKSA4
_cod_duplicate_entry             1200015
_cod_data_source_file            Shirasuka_YGKSA4_1976_601.cif
_cod_data_source_block           Al10.6666O15.9999
_cod_original_cell_volume        494.1633
_cod_original_sg_symbol_Hall     '-F 4vw 2vw 3 (x+1/8,y+1/8,z+1/8)'
_cod_original_formula_sum        'Al10.6666 O15.9999'
_cod_original_formula_units_Z    4
_cod_database_code               1541582
loop_
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x,y,z
-y+1/4,x+1/4,z+1/4
-x,-y+1/2,z+1/2
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y+3/4,x+1/4,-z+3/4
-x,y,-z
-y+1/4,-x+1/4,-z+1/4
z,x,y
-x+1/4,z+1/4,y+1/4
-z,-x+1/2,y+1/2
x+3/4,-z+1/4,y+3/4
z,-x+1/2,-y+1/2
x+3/4,z+1/4,-y+3/4
-z,x,-y
-x+1/4,-z+1/4,-y+1/4
y,z,x
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z+1/4,y+3/4,-x+3/4
-y+1/2,z+1/2,-x
-z+1/4,-y+3/4,-x+3/4
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y,z+1/2,x+1/2
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-z+3/4,y+3/4,x+5/4
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x+1/4,y+1/4,-z+1/4
-y-1/2,x+1/2,-z
-x+1/4,y+1/4,z+1/4
-y-1/2,-x+1/2,z
x+1/4,-y+3/4,z+3/4
y,x+1/2,z+1/2
-z+1/4,-x+3/4,-y+3/4
x,-z+1/2,-y+1/2
z+1/4,x+1/4,-y+1/4
-x-1/2,z+1/2,-y
-z+1/4,x+1/4,y+1/4
-x-1/2,-z+1/2,y
z+1/4,-x+3/4,y+3/4
x,z+1/2,y+1/2
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-y-1/4,z+3/4,x+1/4
-z,-y,x
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z,y,x
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-z,y+1/2,-x+1/2
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x+1/2,y,z+1/2
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z+1/2,y-1/2,x
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x+3/4,y+1/4,-z-1/4
-y,x+1/2,-z-1/2
-x+3/4,y+1/4,z-1/4
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z+3/4,x+1/4,-y-1/4
-x,z+1/2,-y-1/2
-z+3/4,x+1/4,y-1/4
-x,-z+1/2,y-1/2
z+3/4,-x+3/4,y+1/4
x+1/2,z+1/2,y
-y+3/4,-z+3/4,-x+1/4
-y+1/4,z+3/4,x-1/4
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y+1/4,-z+1/4,x+1/4
z+1/2,y,x-1/2
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-z+1/2,y+1/2,-x
z,-y+1/2,-x-1/2
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Al1 Al+3 0.25 0.25 0.25 0.252 0.0
Al2 Al+3 0.25 0 0 0.04 0.0
Al3 Al+3 0.625 0.625 0.625 0.284 0.0
Al4 Al+3 0.125 0.125 0.125 0.136 0.0
O1 O-2 0.37 0.37 0.37 0.5 0.0
