#------------------------------------------------------------------------------
#$Date: 2016-02-13 21:28:24 +0200 (Sat, 13 Feb 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/1/53/80/1538064.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_1538064
loop_
_publ_author_name
'Hanic, F.'
'Sumichrast, L.'
_publ_section_title
;
 Alpha-beta phase transition in quartz
;
_journal_name_full               Silikaty
_journal_page_first              1
_journal_page_last               9
_journal_volume                  18
_journal_year                    1974
_chemical_formula_sum            'O2 Si'
_chemical_name_systematic        'Si O2'
_space_group_IT_number           154
_symmetry_space_group_name_Hall  'P 32 2"'
_symmetry_space_group_name_H-M   'P 32 2 1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            3
_cell_length_a                   4.91304
_cell_length_b                   4.91304
_cell_length_c                   5.40463
_cell_volume                     112.979
_citation_journal_id_ASTM        SIKTAN
_cod_data_source_file            Hanic_SIKTAN_1974_1188.cif
_cod_data_source_block           O2Si1
_cod_original_cell_volume        112.9789
_cod_original_formula_sum        'O2 Si1'
_cod_database_code               1538064
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x-y,z+2/3
-x+y,-x,z+1/3
y,x,-z
-x,-x+y,-z+2/3
x-y,-y,-z+1/3
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
O1 O-2 0.4169 0.2659 0.1196 1 0.0
Si1 Si+4 0.4687 0 0.6667 1 0.0
