#------------------------------------------------------------------------------
#$Date: 2008-04-03 11:11:48 +0100 (Thu, 03 Apr 2008) $
#$Revision: 326 $
#$URL: svn://www.crystallography.net/cod/cif/2/2101347.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_2101347
loop_
_publ_author_name
'Baldinozzi, G.'
'Sciau, Ph.'
'Pinot, M.'
'Grebille, D.'
_publ_section_title
;
 Crystal structure of the antiferroelectric perovskite Pb~2~MgWO~6~
;
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              668
_journal_page_last               673
_journal_volume                  51
_journal_year                    1995
_chemical_formula_sum            'Mg1 O6 Pb2 W1'
_chemical_formula_weight         718.54
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n -21'
_symmetry_space_group_name_H-M   'P m c n'
_cell_angle_alpha                90.0
_cell_angle_beta                 90.0
_cell_angle_gamma                90.0
_cell_formula_units_Z            4
_cell_length_a                   7.9440(4)
_cell_length_b                   5.6866(3)
_cell_length_c                   11.4059(5)
_cell_volume                     515.30(10)
_diffrn_radiation_type           Cu
_diffrn_radiation_wavelength     1.54184
_exptl_crystal_density_diffrn    9.26
_[local]_cod_data_source_file    du0393.cif
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Pb 0.0032(4) -.2196(2) 0.14220(10)
Mg 0.25 0.7519(9) 0.3772(4)
W 0.25 0.2577 0.1161(2)
O(1) 0.4907(4) 0.2365(4) 0.1314(2)
O(2) 0.25 0.0133(12) 0.0027(6)
O(3) 0.25 0.4991(17) 0.0103(5)
O(4) 0.25 -0.0153(15) 0.2370(4)
O(5) 0.25 0.4745(15) 0.2491(5)