#------------------------------------------------------------------------------
#$Date: 2009-11-23 07:50:56 +0200 (Mon, 23 Nov 2009) $
#$Revision: 903 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/9012532.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_9012532
loop_
_publ_author_name
'Idrestedt, I.'
'Brosset, C.'
_publ_section_title
;
 Structure of Si2N2O
 Locality: synthetic
;
_journal_name_full               'Acta Chemica Scandinavica'
_journal_page_first              1879
_journal_page_last               1886
_journal_volume                  18
_journal_year                    1964
_chemical_formula_sum            'N2 O Si2'
_chemical_name_mineral           Sinoite
_space_group_IT_number           36
_symmetry_space_group_name_Hall  'C 2c -2'
_symmetry_space_group_name_H-M   'C m c 21'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   8.843
_cell_length_b                   5.473
_cell_length_c                   4.835
_cell_volume                     234.003
_[local]_cod_data_source_file    12516.cif
_[local]_cod_data_source_block   global
_[local]_cod_chemical_formula_sum_orig 'Si2 N2 O'
loop_
_symmetry_equiv_pos_as_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,z
1/2-x,1/2+y,z
-x,-y,1/2+z
1/2-x,1/2-y,1/2+z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Si 0.17630 0.15090 0.28980 0.00532
N 0.21800 0.12100 0.64200 0.01950
O 0.00000 0.21400 0.23000 0.00443