#------------------------------------------------------------------------------
#$Date: 2009-11-20 13:07:27 +0200 (Fri, 20 Nov 2009) $
#$Revision: 893 $
#$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
loop_
_publ_author_name
'Wyckoff R W G'
_publ_section_title
;
 Second edition. Interscience Publishers, New York, New York
 Sample is stable between 551 K and 843 K
 Note: T = 586 K
;
_journal_name_full               'Crystal Structures'
_journal_page_first              7
_journal_page_last               83
_journal_volume                  1
_journal_year                    1963
_chemical_formula_sum            Np
_chemical_name_mineral           Neptunium-beta
_symmetry_space_group_name_H-M   'P 4 21 2'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   4.897
_cell_length_b                   4.897
_cell_length_c                   3.388
_cell_volume                     81.246
_diffrn_ambient_temperature      586
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