#------------------------------------------------------------------------------
#$Date: 2016-02-18 17:37:37 +0200 (Thu, 18 Feb 2016) $
#$Revision: 176729 $
#$URL: svn://www.crystallography.net/cod/cif/1/00/89/1008990.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_1008990
loop_
_publ_author_name
'Delapalme, A'
'Mulak, J'
'Blaise, A'
'Fournier, J M'
_publ_section_title
;
Np As2: Magnetic form factors and tentative crystal field model
;
_journal_coden_ASTM              JMMMDC
_journal_name_full               'Journal of Magnetism and Magnetic Materials'
_journal_page_first              117
_journal_page_last               121
_journal_paper_doi               10.1016/0304-8853(82)90017-8
_journal_volume                  30
_journal_year                    1982
_chemical_formula_structural     'Np As2'
_chemical_formula_sum            'As2 Np'
_chemical_name_systematic        'Neptunium arsenide (1/2)'
_space_group_IT_number           129
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P 4ab 2ab -1ab'
_symmetry_space_group_name_H-M   'P 4/n m m :1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   3.930(5)
_cell_length_b                   3.93
_cell_length_c                   8.137(5)
_cell_volume                     125.7
_cod_original_sg_symbol_H-M      'P 4/n m m S'
_cod_database_code               1008990
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,z
1/2+x,1/2+y,-z
1/2-x,1/2-y,-z
-x,y,z
x,-y,z
1/2-x,1/2+y,-z
1/2+x,1/2-y,-z
-y,x,-z
y,-x,-z
1/2-y,1/2+x,z
1/2+y,1/2-x,z
y,x,-z
-y,-x,-z
1/2+y,1/2+x,z
1/2-y,1/2-x,z
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
Np1 Np0 2 c 0. 0.5 0.281 1. 0 d
As1 As0 2 a 0. 0. 0. 1. 0 d
As2 As0 2 c 0. 0.5 0.639 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Np0 0.000
As0 0.000
