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#$Date: 2024-05-06 10:39:41 +0300 (Mon, 06 May 2024) $
#$Revision: 291735 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/00/96/9009666.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_9009666
loop_
_publ_author_name
'Gualtieri, A. F.'
_publ_section_title
;
 Accuracy of XRPD QPA using the combined Rietveld-RIR method
;
_journal_name_full               'Journal of Applied Crystallography'
_journal_page_first              267
_journal_page_last               278
_journal_paper_doi               10.1107/S002188989901643X
_journal_volume                  33
_journal_year                    2000
_chemical_compound_source        'Baveno, Novara, Italy'
_chemical_formula_sum            'O2 Si'
_chemical_name_mineral           Quartz
_space_group_IT_number           152
_symmetry_space_group_name_Hall  'P 31 2"'
_symmetry_space_group_name_H-M   'P 31 2 1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   4.9158
_cell_length_b                   4.9158
_cell_length_c                   5.4091
_cell_formula_units_Z            3
_cell_volume                     113.199
_database_code_amcsd             0012866
_exptl_crystal_density_diffrn    2.644
_cod_original_formula_sum        'Si O2'
_cod_database_code               9009666
loop_
_space_group_symop_operation_xyz
x,y,z
y,x,-z
-y,x-y,1/3+z
-x,-x+y,1/3-z
-x+y,-x,2/3+z
x-y,-y,2/3-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Si 0.53030 0.00000 0.33333 0.02200
O 0.14620 0.41420 -0.11900 0.01900
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0012866
