#------------------------------------------------------------------------------
#$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $
#$Revision: 19 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/9008586.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_9008586
_chemical_name 'Neptunium-beta'
loop_
_publ_author_name
'Wyckoff R W G'
_journal_name_full "Crystal Structures"
_journal_volume 1
_journal_year 1963
_journal_page_first 7
_journal_page_last 83
_publ_section_title
;
 Second edition. Interscience Publishers, New York, New York
 Sample is stable between 551 K and 843 K
 Note: T = 586 K
;
_chemical_formula_sum 'Np'
_cell_length_a 4.897
_cell_length_b 4.897
_cell_length_c 3.388
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 81.246
_symmetry_space_group_name_H-M 'P 4 21 2'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  'y,x,-z'
  '1/2-y,1/2+x,z'
  '1/2-x,1/2+y,-z'
  '-x,-y,z'
  '-y,-x,-z'
  '1/2+y,1/2-x,z'
  '1/2+x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Np1   0.00000   0.00000   0.00000
Np2   0.00000   0.50000  -0.37500