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#$Date: 2016-02-13 20:28:24 +0100 (Sat 13 de Feb de 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/2/10/64/2106461.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2106461
loop_
_publ_author_name
'Wang, Y.'
'Calvert, L.D.'
'Taylor, J.B.'
'Gabe, E.J.'
_publ_section_title
;
 Europium arsenic oxide Eu4 As2 O . A filled La2 Sb structure and its
 relation to the K2 Ni F4 and Ge Te U types
;
_journal_name_full               'Acta Crystallographica B (24,1968-38,1982)'
_journal_page_first              3122
_journal_page_last               3125
_journal_volume                  33
_journal_year                    1977
_chemical_formula_sum            'As2 Eu4 O'
_chemical_name_systematic        'Eu4 As2 O'
_space_group_IT_number           139
_symmetry_space_group_name_Hall  '-I 4 2'
_symmetry_space_group_name_H-M   'I 4/m m m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   4.7924
_cell_length_b                   4.7924
_cell_length_c                   16.1933
_cell_volume                     371.913
_citation_journal_id_ASTM        ACBCAR
_cod_data_source_file            Wang_ACBCAR_1977_699.cif
_cod_data_source_block           As2Eu4O1
_cod_original_cell_volume        371.9131
_cod_original_formula_sum        'As2 Eu4 O1'
_cod_database_code               2106461
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x,z
-x,-y,z
y,-x,z
x,-y,-z
y,x,-z
-x,y,-z
-y,-x,-z
-x,-y,-z
y,-x,-z
x,y,-z
-y,x,-z
-x,y,z
-y,-x,z
x,-y,z
y,x,z
x+1/2,y+1/2,z+1/2
-y+1/2,x+1/2,z+1/2
-x+1/2,-y+1/2,z+1/2
y+1/2,-x+1/2,z+1/2
x+1/2,-y+1/2,-z+1/2
y+1/2,x+1/2,-z+1/2
-x+1/2,y+1/2,-z+1/2
-y+1/2,-x+1/2,-z+1/2
-x+1/2,-y+1/2,-z+1/2
y+1/2,-x+1/2,-z+1/2
x+1/2,y+1/2,-z+1/2
-y+1/2,x+1/2,-z+1/2
-x+1/2,y+1/2,z+1/2
-y+1/2,-x+1/2,z+1/2
x+1/2,-y+1/2,z+1/2
y+1/2,x+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
O1 O-2 0 0 0.5 1 0.0
As1 As-3 0 0 0.1356 1 0.0
Eu2 Eu+2 0 0 0.3261 1 0.0
Eu1 Eu+2 0 0.5 0 1 0.0
