#------------------------------------------------------------------------------
#$Date: 2016-02-18 17:37:37 +0200 (Thu, 18 Feb 2016) $
#$Revision: 176729 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/01/12/1011298.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_1011298
loop_
_publ_author_name
'Elander, M'
'Haegg, G'
'Westgren, A'
_publ_section_title              'The crystal structure of Cu2 Sb and Fe2 As'
_journal_coden_ASTM              ARKGBK
_journal_name_full               'Arkiv foer Kemi, Mineralogi och Geologi, B'
_journal_page_first              1
_journal_page_last               6
_journal_volume                  12
_journal_year                    1935
_chemical_formula_structural     'Fe2 As'
_chemical_formula_sum            'As Fe2'
_chemical_name_systematic        'Iron arsenide (2/1)'
_space_group_IT_number           129
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P 4ab 2ab -1ab'
_symmetry_space_group_name_H-M   'P 4/n m m :1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   3.627
_cell_length_b                   3.627
_cell_length_c                   5.973
_cell_volume                     78.6
_cod_original_sg_symbol_H-M      'P 4/n m m S'
_cod_database_code               1011298
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,z
1/2+x,1/2+y,-z
1/2-x,1/2-y,-z
-x,y,z
x,-y,z
1/2-x,1/2+y,-z
1/2+x,1/2-y,-z
-y,x,-z
y,-x,-z
1/2-y,1/2+x,z
1/2+y,1/2-x,z
y,x,-z
-y,-x,-z
1/2+y,1/2+x,z
1/2-y,1/2-x,z
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_attached_hydrogens
_atom_site_calc_flag
Fe1 Fe0 2 a 0. 0. 0. 1. 0 d
Fe2 Fe0 2 c 0. 0.5 0.33 1. 0 d
As1 As0 2 c 0. 0.5 -0.265 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Fe0 0.000
As0 0.000