#------------------------------------------------------------------------------
#$Date: 2014-07-11 17:35:18 +0300 (Fri, 11 Jul 2014) $
#$Revision: 120071 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/51/15/1511515.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_1511515
loop_
_publ_author_name
'Brosset, C.'
'Magnusson, B.'
_publ_section_title
;
 The Silicon - Boron System
;
_journal_name_full               'Nature (London)'
_journal_page_first              54
_journal_page_last               55
_journal_volume                  187
_journal_year                    1960
_chemical_formula_sum            'B4 Si'
_chemical_name_systematic        'Si B4'
_space_group_IT_number           166
_symmetry_space_group_name_Hall  '-R 3 2"'
_symmetry_space_group_name_H-M   'R -3 m :H'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            9
_cell_length_a                   6.319
_cell_length_b                   6.319
_cell_length_c                   12.713
_cell_volume                     439.618
_citation_journal_id_ASTM        NATUAS
_[local]_cod_data_source_file    boron4-x_145.cif
_[local]_cod_data_source_block   B4Si1
_[local]_cod_chemical_formula_sum_orig 'B4 Si1'
_cod_original_cell_volume        439.6179
_cod_database_code               1511515
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x-y,z
-x+y,-x,z
y,x,-z
-x,-x+y,-z
x-y,-y,-z
-x,-y,-z
y,-x+y,-z
x-y,x,-z
-y,-x,z
x,x-y,z
-x+y,y,z
x+2/3,y+1/3,z+1/3
-y+2/3,x-y+1/3,z+1/3
-x+y+2/3,-x+1/3,z+1/3
y+2/3,x+1/3,-z+1/3
-x+2/3,-x+y+1/3,-z+1/3
x-y+2/3,-y+1/3,-z+1/3
-x+2/3,-y+1/3,-z+1/3
y+2/3,-x+y+1/3,-z+1/3
x-y+2/3,x+1/3,-z+1/3
-y+2/3,-x+1/3,z+1/3
x+2/3,x-y+1/3,z+1/3
-x+y+2/3,y+1/3,z+1/3
x+1/3,y+2/3,z+2/3
-y+1/3,x-y+2/3,z+2/3
-x+y+1/3,-x+2/3,z+2/3
y+1/3,x+2/3,-z+2/3
-x+1/3,-x+y+2/3,-z+2/3
x-y+1/3,-y+2/3,-z+2/3
-x+1/3,-y+2/3,-z+2/3
y+1/3,-x+y+2/3,-z+2/3
x-y+1/3,x+2/3,-z+2/3
-y+1/3,-x+2/3,z+2/3
x+1/3,x-y+2/3,z+2/3
-x+y+1/3,y+2/3,z+2/3
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
Si1 Si 0 0 0.19 1 0.0
B1 B 0.11 0.89 0.87 0.833 0.0
B2 B 0.1667 0.8333 0.02 1 0.0
B3 B 0 0 0 1 0.0
Si2 Si 0.11 0.89 0.87 0.167 0.0
_journal_paper_doi 10.1038/187054a0