#------------------------------------------------------------------------------
#$Date: 2016-01-01 12:46:07 +0100 (vie 01 de ene de 2016) $
#$Revision: 172099 $
#$URL: svn://www.crystallography.net/cod/cif/1/54/09/1540918.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_1540918
loop_
_publ_author_name
'Schoenberg, N.'
_publ_section_title
;
 An X-ray investigation on ternary phases in the Ta-Me-N systems (Me= Ti,
 Cr, Mn, Fe, Co, Ni)
;
_journal_name_full
'Acta Chemica Scandinavica (1-27,1973-42,1988)'
_journal_page_first              213
_journal_page_last               220
_journal_volume                  8
_journal_year                    1954
_chemical_formula_sum            'Co2 Ta4'
_chemical_name_systematic        'Co2 Ta4 N5'
_space_group_IT_number           189
_symmetry_space_group_name_Hall  'P -6 -2'
_symmetry_space_group_name_H-M   'P -6 2 m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            2
_cell_length_a                   5.161
_cell_length_b                   5.161
_cell_length_c                   10.3
_cell_volume                     237.594
_citation_journal_id_ASTM        ACSAA4
_cod_data_source_file            Schoenberg_ACSAA4_1954_418.cif
_cod_data_source_block           Co2Ta4
_cod_database_code               1540918
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x+y,-x,-z
-y,x-y,z
x,y,-z
-x+y,-x,z
-y,x-y,-z
y,x,z
x-y,-y,-z
-x,-x+y,z
y,x,-z
x-y,-y,z
-x,-x+y,-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
Ta2 Ta 0.333 0 0 1 0.0
Ta3 Ta 0.667 0 0.5 1 0.0
Ta1 Ta 0 0 0.25 1 0.0
Co1 Co 0.3333 0.6667 0.25 1 0.0
