#------------------------------------------------------------------------------
#$Date: 2016-02-18 16:37:37 +0100 (Thu 18 de Feb de 2016) $
#$Revision: 176729 $
#$URL: svn://www.crystallography.net/cod/cif/1/00/85/1008531.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_1008531
loop_
_publ_author_name
'Isnard, O'
'Miraglia, S'
'Soubeyroux, J L'
'Fruchart, D'
'Pannetier, J'
_publ_section_title
;
Neutron powder diffraction study of Pr₂Fe₁₇ and Pr₂Fe₁₇N~2.9~
;
_journal_coden_ASTM              PRBMDO
_journal_name_full
;
Physical Review, Serie 3. B - Condensed Matter (18,1978-)
;
_journal_page_first              2920
_journal_page_last               2926
_journal_paper_doi               10.1103/PhysRevB.45.2920
_journal_volume                  45
_journal_year                    1992
_chemical_formula_structural     'Pr2 Fe17 N2.92'
_chemical_formula_sum            'Fe17 N2.92 Pr2'
_chemical_name_systematic        'Praseodymium iron nitride (2/17/2.9)'
_space_group_IT_number           166
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-R 3 2"'
_symmetry_space_group_name_H-M   'R -3 m :H'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            3
_cell_length_a                   8.817(1)
_cell_length_b                   8.817(1)
_cell_length_c                   12.692(1)
_cell_volume                     854.5
_refine_ls_R_factor_all          0.044
_cod_original_sg_symbol_H-M      'R -3 m H'
_cod_database_code               1008531
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x-y,z
y-x,-x,z
-y,-x,z
x,x-y,z
y-x,y,z
-x,-y,-z
y,y-x,-z
x-y,x,-z
y,x,-z
-x,y-x,-z
x-y,-y,-z
1/3+x,2/3+y,2/3+z
2/3+x,1/3+y,1/3+z
1/3-y,2/3+x-y,2/3+z
2/3-y,1/3+x-y,1/3+z
1/3-x+y,2/3-x,2/3+z
2/3-x+y,1/3-x,1/3+z
1/3-y,2/3-x,2/3+z
2/3-y,1/3-x,1/3+z
1/3+x,2/3+x-y,2/3+z
2/3+x,1/3+x-y,1/3+z
1/3-x+y,2/3+y,2/3+z
2/3-x+y,1/3+y,1/3+z
1/3-x,2/3-y,2/3-z
2/3-x,1/3-y,1/3-z
1/3+y,2/3-x+y,2/3-z
2/3+y,1/3-x+y,1/3-z
1/3+x-y,2/3+x,2/3-z
2/3+x-y,1/3+x,1/3-z
1/3+y,2/3+x,2/3-z
2/3+y,1/3+x,1/3-z
1/3-x,2/3-x+y,2/3-z
2/3-x,1/3-x+y,1/3-z
1/3+x-y,2/3-y,2/3-z
2/3+x-y,1/3-y,1/3-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
Pr1 Pr0 6 c 0. 0. 0.3446(6) 1. 0 d
Fe1 Fe0 6 c 0. 0. 0.0948(3) 1. 0 d
Fe2 Fe0 9 d 0.5 0. 0.5 1. 0 d
Fe3 Fe0 18 f 0.2827(1) 0. 0. 1. 0 d
Fe4 Fe0 18 h 0.5064(1) 0.4936(1) 0.1520(1) 1. 0 d
N1 N0 9 e 0.5 0. 0. 0.973(8) 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Pr0 0.000
Fe0 0.000
N0 0.000
