#------------------------------------------------------------------------------
#$Date: 2008-01-14 00:15:36 +0200 (Mon, 14 Jan 2008) $
#$Revision: 14 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/1006026.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_1006026
_chemical_name_systematic          'Dineodymium nickel oxide'
_chemical_formula_structural       'Nd2 Ni O4'
_chemical_formula_sum              'Nd2 Ni O4'
_publ_section_title
;
Structural phase transitions and three-dimensional magnetic ordering in
the Nd~2~NiO~4~ oxide
;
loop_
_publ_author_name
  'Rodriguez-Carvajal, J'
  'Fernandez-Diaz, M T'
  'Martinez, J L'
  'Fernandez, F'
  'Saez-Puche, R'
_journal_name_full                 'Europhysics Letters'
_journal_coden_ASTM                EULEEJ
_journal_volume                    11
_journal_year                      1990
_journal_page_first                261
_journal_page_last                 268
_cell_length_a                     5.37325(9)
_cell_length_b                     5.5913(1)
_cell_length_c                     12.0976(2)
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  90
_cell_volume                       363.5
_cell_formula_units_Z              4
_symmetry_space_group_name_H-M     'B m a b'
_symmetry_Int_Tables_number        64
_symmetry_cell_setting             orthorhombic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  'x,-y,-z'
  'x,1/2+y,1/2-z'
  'x,1/2-y,1/2+z'
  '-x,-y,-z'
  '-x,y,z'
  '-x,1/2-y,1/2+z'
  '-x,1/2+y,1/2-z'
  '1/2+x,y,1/2+z'
  '1/2+x,-y,1/2-z'
  '1/2+x,1/2+y,-z'
  '1/2+x,1/2-y,z'
  '1/2-x,-y,1/2-z'
  '1/2-x,y,1/2+z'
  '1/2-x,1/2-y,z'
  '1/2-x,1/2+y,-z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Ni2+   2.000
  Nd3+   3.000
  O2-   -2.000
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
  Ni1   Ni2+   4 a 0. 0. 0. 1.  0 d
  Nd1   Nd3+   8 f 0. -0.0173(3) 0.3630(1) 1.  0 d
  O1    O2-    8 e 0.25 0.25 -0.0177(2) 1.  0 d
  O2    O2-    8 f 0. 0.0652(3) 0.1806(2) 1.  0 d
_refine_ls_R_factor_all            0.0646