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#$Date: 2016-11-14 04:19:24 +0200 (Mon, 14 Nov 2016) $
#$Revision: 188422 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/00/16/1001660.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_1001660
loop_
_publ_author_name
'Baldinozzi, G.'
'Sciau, Ph.'
'Pinot, M.'
'Grebille, D.'
_publ_section_title
;
Crystal structure of the antiferroelectric perovskite Pb2 Mg W O6
;
_journal_coden_ASTM              ASBSDK
_journal_issue                   5
_journal_name_full               'Acta Crystallographica B (39,1983-)'
_journal_page_first              668
_journal_page_last               673
_journal_paper_doi               10.1107/S0108768194014047
_journal_volume                  51
_journal_year                    1995
_chemical_formula_structural     'Pb2 Mg (W O6)'
_chemical_formula_sum            'Mg O6 Pb2 W'
_chemical_name_systematic        'Dilead magnesium tungstate - I'
_space_group_IT_number           225
_symmetry_cell_setting           cubic
_symmetry_Int_Tables_number      225
_symmetry_space_group_name_Hall  '-F 4 2 3'
_symmetry_space_group_name_H-M   'F m -3 m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.0058(4)
_cell_length_b                   8.0058(4)
_cell_length_c                   8.0058(4)
_cell_volume                     513.1
_refine_ls_R_factor_all          0.029
_cod_database_code               1001660
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
y,z,x
z,x,y
x,z,y
y,x,z
z,y,x
x,-y,-z
y,-z,-x
z,-x,-y
x,-z,-y
y,-x,-z
z,-y,-x
-x,y,-z
-y,z,-x
-z,x,-y
-x,z,-y
-y,x,-z
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-x,-y,z
-y,-z,x
-z,-x,y
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-y,-x,z
-z,-y,x
-x,-y,-z
-y,-z,-x
-z,-x,-y
-x,-z,-y
-y,-x,-z
-z,-y,-x
-x,y,z
-y,z,x
-z,x,y
-x,z,y
-y,x,z
-z,y,x
x,-y,z
y,-z,x
z,-x,y
x,-z,y
y,-x,z
z,-y,x
x,y,-z
y,z,-x
z,x,-y
x,z,-y
y,x,-z
z,y,-x
x,1/2+y,1/2+z
1/2+x,y,1/2+z
1/2+x,1/2+y,z
y,1/2+z,1/2+x
1/2+y,z,1/2+x
1/2+y,1/2+z,x
z,1/2+x,1/2+y
1/2+z,x,1/2+y
1/2+z,1/2+x,y
x,1/2+z,1/2+y
1/2+x,z,1/2+y
1/2+x,1/2+z,y
y,1/2+x,1/2+z
1/2+y,x,1/2+z
1/2+y,1/2+x,z
z,1/2+y,1/2+x
1/2+z,y,1/2+x
1/2+z,1/2+y,x
x,1/2-y,1/2-z
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1/2+x,1/2-y,-z
y,1/2-z,1/2-x
1/2+y,-z,1/2-x
1/2+y,1/2-z,-x
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1/2+z,-x,1/2-y
1/2+z,1/2-x,-y
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1/2+x,-z,1/2-y
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1/2-y,1/2+x,-z
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1/2-z,y,1/2-x
1/2-z,1/2+y,-x
-x,1/2-y,1/2+z
1/2-x,-y,1/2+z
1/2-x,1/2-y,z
-y,1/2-z,1/2+x
1/2-y,-z,1/2+x
1/2-y,1/2-z,x
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1/2-z,-x,1/2+y
1/2-z,1/2-x,y
-x,1/2-z,1/2+y
1/2-x,-z,1/2+y
1/2-x,1/2-z,y
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1/2-y,1/2-x,z
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1/2-z,-y,1/2+x
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-x,1/2-y,1/2-z
1/2-x,-y,1/2-z
1/2-x,1/2-y,-z
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1/2-y,-z,1/2-x
1/2-y,1/2-z,-x
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1/2-z,-x,1/2-y
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1/2-x,1/2+y,z
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y,1/2-z,1/2+x
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x,1/2+y,1/2-z
1/2+x,y,1/2-z
1/2+x,1/2+y,-z
y,1/2+z,1/2-x
1/2+y,z,1/2-x
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z,1/2+x,1/2-y
1/2+z,x,1/2-y
1/2+z,1/2+x,-y
x,1/2+z,1/2-y
1/2+x,z,1/2-y
1/2+x,1/2+z,-y
y,1/2+x,1/2-z
1/2+y,x,1/2-z
1/2+y,1/2+x,-z
z,1/2+y,1/2-x
1/2+z,y,1/2-x
1/2+z,1/2+y,-x
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
Pb1 Pb2+ 96 k 0.2729(7) 0.2729(7) 0.25 0.0833 0 d
Mg1 Mg2+ 4 b 0.5 0.5 0.5 1. 0 d
W1 W6+ 4 a 0. 0. 0. 1. 0 d
O1 O2- 192 l 0.2398(1) 0.0229(7) 0.004(5) 0.125 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Pb2+ 2.000
Mg2+ 2.000
W6+ 6.000
O2- -2.000
