#------------------------------------------------------------------------------
#$Date: 2016-02-18 16:37:37 +0100 (jue 18 de feb de 2016) $
#$Revision: 176729 $
#$URL: svn://www.crystallography.net/cod/cif/1/51/15/1511517.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_1511517
loop_
_publ_author_name
'Kiessling, R.'
_publ_section_title
;
 The borides of tantalum
;
_journal_name_full
'Acta Chemica Scandinavica (1-27,1973-42,1988)'
_journal_page_first              603
_journal_page_last               615
_journal_paper_doi               10.3891/acta.chem.scand.03-0603
_journal_volume                  3
_journal_year                    1949
_chemical_formula_sum            'B4 Ta3'
_chemical_name_systematic        'Ta3 B4'
_space_group_IT_number           71
_symmetry_space_group_name_Hall  '-I 2 2'
_symmetry_space_group_name_H-M   'I m m m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   3.29
_cell_length_b                   14
_cell_length_c                   3.13
_cell_volume                     144.168
_citation_journal_id_ASTM        ACSAA4
_cod_data_source_file            boron4-x_147.cif
_cod_data_source_block           B4Ta3
_cod_original_cell_volume        144.1678
_cod_database_code               1511517
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,z
x,-y,-z
-x,y,-z
-x,-y,-z
x,y,-z
-x,y,z
x,-y,z
x+1/2,y+1/2,z+1/2
-x+1/2,-y+1/2,z+1/2
x+1/2,-y+1/2,-z+1/2
-x+1/2,y+1/2,-z+1/2
-x+1/2,-y+1/2,-z+1/2
x+1/2,y+1/2,-z+1/2
-x+1/2,y+1/2,z+1/2
x+1/2,-y+1/2,z+1/2
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
Ta1 Ta+4 0.5 0.5 0 1 0.0
B1 B-3 0 0.375 0 1 0.0
Ta2 Ta+4 0 0.18 0 1 0.0
B2 B-3 0 0.444 0.5 1 0.0
