#------------------------------------------------------------------------------
#$Date: 2024-05-02 12:48:35 +0200 (Thu 02 de May de 2024) $
#$Revision: 291455 $
#$URL: svn://www.crystallography.net/cod/cif/9/00/74/9007445.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_9007445
loop_
_publ_author_name
'Boyko, E. R.'
'Wisnyi, L. G.'
_publ_section_title
;
 The optical properties and structures of CaO*2Al2O3 and SrO*2Al2O3
;
_journal_name_full               'Acta Crystallographica'
_journal_page_first              444
_journal_page_last               445
_journal_paper_doi               10.1107/S0365110X58001183
_journal_volume                  11
_journal_year                    1958
_chemical_compound_source        Synthetic
_chemical_formula_structural     SrO*2(Al2O3)
_chemical_formula_sum            'Al4 O7 Sr'
_space_group_IT_number           15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 106.502
_cell_angle_gamma                90
_cell_length_a                   13.04
_cell_length_b                   9.01
_cell_length_c                   5.55
_cell_formula_units_Z            4
_cell_volume                     625.213
_database_code_amcsd             0009209
_exptl_crystal_density_diffrn    3.267
_cod_original_formula_sum        'Sr Al4 O7'
_cod_database_code               9007445
_amcsd_formula_title             SrO*2(Al2O3)
loop_
_space_group_symop_operation_xyz
x,y,z
1/2+x,1/2+y,z
x,-y,1/2+z
1/2+x,1/2-y,1/2+z
-x,y,1/2-z
1/2-x,1/2+y,1/2-z
-x,-y,-z
1/2-x,1/2-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Sr 0.00000 0.81000 0.25000
Al1 0.16900 0.08600 0.29500
Al2 0.12200 0.44100 0.25700
O1 0.00000 0.52600 0.25000
O2 0.11700 0.04800 0.54400
O3 0.12700 0.26000 0.17500
O4 0.18800 0.44700 0.59800
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0009209
