#------------------------------------------------------------------------------
#$Date: 2008-01-14 00:15:36 +0200 (Mon, 14 Jan 2008) $
#$Revision: 14 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/1008843.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_1008843
_chemical_name_systematic          'Dimagnesium nickel tetradeuteride'
_chemical_formula_structural       'Mg2 Ni D4'
_chemical_formula_sum              'D4 Mg2 Ni'
_publ_section_title
;
Etude structurale du systeme Mg2 Ni - H2: II - La variete haute
temperature de Mg2 Ni H4 de symetrie cubique
;
loop_
_publ_author_name
  'Soubeyroux, J L'
  'Fruchart, D'
  'Mikou, A'
  'Pezat, M'
  'Darriet, B'
  'Hagenmuller, P'
_journal_name_full                 'Materials Research Bulletin'
_journal_coden_ASTM                MRBUAC
_journal_volume                    19
_journal_year                      1984
_journal_page_first                969
_journal_page_last                 978
_cell_length_a                     6.5247(3)
_cell_length_b                     6.5247(3)
_cell_length_c                     6.5247(3)
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  90
_cell_volume                       277.8
_cell_formula_units_Z              4
_symmetry_space_group_name_H-M     'F m -3 m'
_symmetry_Int_Tables_number        225
_symmetry_cell_setting             cubic
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'
  '-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,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'
  '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'
  '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'
  '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'
  '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'
  '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'
  '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'
  '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'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Mg0    0.000
  Ni0    0.000
  D0     0.000
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   Mg0    8 c 0.25 0.25 0.25 1.  0 d
  Ni1   Ni0    4 a 0. 0. 0. 1.  0 d
  D1    D0    48 h 0.215(4) 0.215 0. 0.08  0 d
  D2    D0    24 e 0.195(4) 0. 0. 0.507  0 d
loop_
_atom_site_aniso_label
_atom_site_aniso_B_11
_atom_site_aniso_B_12
_atom_site_aniso_B_13
_atom_site_aniso_B_22
_atom_site_aniso_B_23
_atom_site_aniso_B_33
  D1    8.5(1) 0. 0. 7.4(5) 10.4(7) 7.4(5)
  D2    5. 0. 0. 5. 0. 5.
_refine_ls_R_factor_all            0.083