#------------------------------------------------------------------------------
#$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $
#$Revision: 19 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/1010124.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_1010124
_chemical_name_systematic          'Magnesium arsenide'
_chemical_formula_structural       'Mg3 As2'
_chemical_formula_sum              'As2 Mg3'
_publ_section_title                'Sugli arseniuri di magnesio e di zinco'
loop_
_publ_author_name
  'Natta, G'
  'Passerini, L'
_journal_name_full                 'Gazzetta Chimica Italiana'
_journal_coden_ASTM                GCITA9
_journal_volume                    58
_journal_year                      1928
_journal_page_first                541
_journal_page_last                 550
_cell_length_a                     6.1
_cell_length_b                     6.1
_cell_length_c                     6.1
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  90
_cell_volume                       227.0
_cell_formula_units_Z              2
_exptl_crystal_density_meas        3.16
_symmetry_space_group_name_H-M     'P 42 3 2'
_symmetry_Int_Tables_number        208
_symmetry_cell_setting             cubic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  'y,z,x'
  'z,x,y'
  '1/2-x,1/2-z,1/2-y'
  '1/2-y,1/2-x,1/2-z'
  '1/2-z,1/2-y,1/2-x'
  '-x,y,-z'
  '-y,z,-x'
  '-z,x,-y'
  '1/2+x,1/2-z,1/2+y'
  '1/2+y,1/2-x,1/2+z'
  '1/2+z,1/2-y,1/2+x'
  'x,-y,-z'
  'y,-z,-x'
  'z,-x,-y'
  '1/2-x,1/2+z,1/2+y'
  '1/2-y,1/2+x,1/2+z'
  '1/2-z,1/2+y,1/2+x'
  '-x,-y,z'
  '-y,-z,x'
  '-z,-x,y'
  '1/2+x,1/2+z,1/2-y'
  '1/2+y,1/2+x,1/2-z'
  '1/2+z,1/2+y,1/2-x'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Mg2+   2.000
  As3-  -3.000
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
  Mg1   Mg2+   6 d 0. 0.5 0.5 1.  0 d
  As1   As3-   4 b 0.25 0.25 0.25 1.  0 d