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#$Date: 2016-02-13 20:28:24 +0100 (Sat 13 de Feb de 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/2/31/03/2310329.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# 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_2310329
loop_
_publ_author_name
'Oganov, A. P.'
'Price, G. D.'
'Brodholt, J. P.'
_publ_section_title
;
 Theoretical investigation of metastable Al₂SiO₅ polymorphs
;
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section A'
_journal_page_first              548
_journal_page_last               557
_journal_paper_doi               10.1107/S0108767301007644
_journal_volume                  57
_journal_year                    2001
_chemical_formula_sum            'Al2 O5 Si'
_chemical_name_systematic        'Al2 (Si O4) O'
_space_group_IT_number           58
_symmetry_space_group_name_Hall  '-P 2 2n'
_symmetry_space_group_name_H-M   'P n n m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.679
_cell_length_b                   7.727
_cell_length_c                   5.666
_cell_volume                     336.196
_citation_journal_id_ASTM        ACACEQ
_cod_data_source_file            Oganov_ACACEQ_2001_871.cif
_cod_data_source_block           Al2O5Si1
_cod_original_cell_volume        336.1957
_cod_original_formula_sum        'Al2 O5 Si1'
_cod_database_code               2310329
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,z
x+1/2,-y+1/2,-z+1/2
-x+1/2,y+1/2,-z+1/2
-x,-y,-z
x,y,-z
-x-1/2,y-1/2,z-1/2
x-1/2,-y-1/2,z-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
O3 O-2 0.0941 0.4106 0 1 0.0
O2 O-2 0.412 0.3714 0 1 0.0
O1 O-2 0.4555 0.3511 0.5 1 0.0
Al2 Al+3 0.3605 0.1395 0.5 1 0.0
O4 O-2 0.2262 0.1451 0.2305 1 0.0
Al1 Al+3 0 0 0.2472 1 0.0
Si1 Si+4 0.2304 0.255 0 1 0.0
