#------------------------------------------------------------------------------
#$Date: 2015-07-14 00:28:39 +0200 (Tue 14 de Jul de 2015) $
#$Revision: 151292 $
#$URL: svn://www.crystallography.net/cod/cif/1/52/87/1528705.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_1528705
loop_
_publ_author_name
'Lukaszewicz, K.'
_publ_section_title
;
 The Crystal Structure of Magnesium Pyroarsenate, Mg2 As2 O7
;
_journal_name_full
;
Bulletin de l'Academie Polonaise des Sciences, Serie des Sciences Chimiques
;
_journal_page_first              361
_journal_page_last               364
_journal_volume                  11
_journal_year                    1963
_chemical_formula_sum            'As2 Mg2 O7'
_chemical_name_systematic        'Mg2 As2 O7'
_space_group_IT_number           12
_symmetry_space_group_name_Hall  '-C 2y'
_symmetry_space_group_name_H-M   'C 1 2/m 1'
_cell_angle_alpha                90
_cell_angle_beta                 103.88
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   6.584
_cell_length_b                   8.507
_cell_length_c                   4.761
_cell_volume                     258.878
_citation_journal_id_ASTM        BAPCAQ
_cod_data_source_file            Lukaszewicz_BAPCAQ_1963_346.cif
_cod_data_source_block           As2Mg2O7
_cod_original_cell_volume        258.8775
_cod_database_code               1528705
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,y,-z
-x,-y,-z
x,-y,z
x+1/2,y+1/2,z
-x+1/2,y+1/2,-z
-x+1/2,-y+1/2,-z
x+1/2,-y+1/2,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
O3 O-2 0.23 0.165 0.708 1 0.0
As1 As+5 0.23 0 0.892 1 0.0
O2 O-2 0.406 0 0.239 1 0.0
O1 O-2 0 0 0 1 0.0
Mg1 Mg+2 0 0.303 0.5 1 0.0
