#------------------------------------------------------------------------------
#$Date: 2013-03-28 18:17:04 +0200 (Thu, 28 Mar 2013) $
#$Revision: 77586 $
#$URL: svn://www.crystallography.net/cod/cif/1/01/11/1011159.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_1011159
loop_
_publ_author_name
'Machatschki, F'
_publ_section_title              'Kristallstruktur von Tiefquarz'
_journal_coden_ASTM              FMRLAL
_journal_name_full               'Fortschritte der Mineralogie'
_journal_page_first              45
_journal_page_last               47
_journal_volume                  20
_journal_year                    1936
_chemical_formula_structural     'Si O2'
_chemical_formula_sum            'O2 Si'
_chemical_name_mineral           'Quartz low'
_chemical_name_systematic        'Silicon oxide'
_symmetry_cell_setting           trigonal
_symmetry_Int_Tables_number      154
_symmetry_space_group_name_H-M   'P 32 2 1 S'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            3
_cell_length_a                   4.91
_cell_length_b                   4.91
_cell_length_c                   5.4
_cell_volume                     112.7
_exptl_crystal_density_meas      2.66
_cod_database_code               1011159
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
y,x,2/3-z
-y,x-y,2/3+z
-x,y-x,1/3-z
y-x,-x,1/3+z
x-y,-y,-z
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_attached_hydrogens
_atom_site_calc_flag
Si1 Si4+ 3 a 0.469(3) 0. 0. 1. 0 d
O1 O2- 6 c 0.403(6) 0.253(6) 0.122(6) 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Si4+ 4.000
O2- -2.000
