#------------------------------------------------------------------------------
#$Date: 2015-09-28 14:31:51 +0100 (Mon, 28 Sep 2015) $
#$Revision: 158726 $
#$URL: svn://www.crystallography.net/cod/cif/1/53/27/1532748.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_1532748
loop_
_publ_author_name
'Will, G.'
'Ploog, K.'
_publ_section_title
;
 Crystal structure of I-tetragonal boron
;
_journal_name_full               'Nature (London)'
_journal_page_first              406
_journal_page_last               408
_journal_volume                  251
_journal_year                    1974
_chemical_formula_sum            'C2 B50'
_chemical_name_systematic        'B48 B2 C2'
_space_group_IT_number           134
_symmetry_space_group_name_Hall  'P 4n 2 -1n'
_symmetry_space_group_name_H-M   'P 42/n n m :1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            1
_cell_length_a                   8.722
_cell_length_b                   8.722
_cell_length_c                   5.08
_cell_volume                     386.452
_citation_journal_id_ASTM        NATUAS
_cod_data_source_file            Will_NATUAS_1974_68.cif
_cod_data_source_block           C2B50
_cod_cif_authors_sg_Hall         '-P 4ac 2bc (x-1/4,y+1/4,z-1/4)'
_cod_original_cell_volume        386.4523
_cod_database_code               1532748
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y+1/2,x+1/2,z+1/2
-x,-y,z
y+1/2,-x+1/2,z+1/2
x,-y,-z
y+1/2,x+1/2,-z+1/2
-x,y,-z
-y+1/2,-x+1/2,-z+1/2
-x+1/2,-y+1/2,-z+1/2
y,-x,-z
x+1/2,y+1/2,-z+1/2
-y,x,-z
-x+1/2,y+1/2,z+1/2
-y,-x,z
x+1/2,-y+1/2,z+1/2
y,x,z
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
B6 B 0 0.5 0.8557 0.098 0.0
B3 B 0.1227 0.1227 0.3798 1 0.0
B5 B 0.433 0 0 0.128 0.0
B4 B 0.2474 0.2474 0.5849 1 0.0
B7 B 0 0 0 0.112 0.0
B1 B 0.3259 0.089 0.399 1 0.0
C1 C 0 0 0.5 0.908 0.0
B2 B 0.226 0.0806 0.0873 1 0.0