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#$Date: 2016-02-14 16:26:36 +0200 (Sun, 14 Feb 2016) $
#$Revision: 176435 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/00/60/1006022.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_1006022
loop_
_publ_author_name
'Paulus, E F'
'Yehia, I'
'Fuess, H'
'Rodriguez, J'
'Vogt, T'
'Stroebel, J'
'Klauda, M'
'Saemann-Ischenko, G'
_publ_section_title
;
Crystal structure refinement of Nd~2-x~Ce~x~CuO~4~ (x=.05-.30) by x-ray
(295K) and neutron (1.5K) powder diffraction
;
_journal_coden_ASTM              SSCOA4
_journal_issue                   11
_journal_name_full               'Solid State Communications'
_journal_page_first              791
_journal_page_last               795
_journal_paper_doi               10.1016/0038-1098(90)90172-8
_journal_volume                  73
_journal_year                    1990
_chemical_formula_structural     'Nd1.70 Ce.30 Cu O4'
_chemical_formula_sum            'Ce0.3 Cu Nd1.7 O4'
_chemical_name_systematic
;
Neodymium cerium copper oxide (1.70/.30/1/4)
;
_space_group_IT_number           139
_symmetry_cell_setting           tetragonal
_symmetry_Int_Tables_number      139
_symmetry_space_group_name_Hall  '-I 4 2'
_symmetry_space_group_name_H-M   'I 4/m m m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   3.94616(8)
_cell_length_b                   3.94616(8)
_cell_length_c                   12.0441(4)
_cell_volume                     187.6
_refine_ls_R_factor_all          0.0267
_cod_original_formula_sum        'Ce.3 Cu Nd1.7 O4'
_cod_database_code               1006022
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,z
-x,y,z
x,-y,z
-y,x,z
y,-x,z
y,x,z
-y,-x,z
-x,-y,-z
x,y,-z
x,-y,-z
-x,y,-z
y,-x,-z
-y,x,-z
-y,-x,-z
y,x,-z
1/2+x,1/2+y,1/2+z
1/2-x,1/2-y,1/2+z
1/2-x,1/2+y,1/2+z
1/2+x,1/2-y,1/2+z
1/2-y,1/2+x,1/2+z
1/2+y,1/2-x,1/2+z
1/2+y,1/2+x,1/2+z
1/2-y,1/2-x,1/2+z
1/2-x,1/2-y,1/2-z
1/2+x,1/2+y,1/2-z
1/2+x,1/2-y,1/2-z
1/2-x,1/2+y,1/2-z
1/2+y,1/2-x,1/2-z
1/2-y,1/2+x,1/2-z
1/2-y,1/2-x,1/2-z
1/2+y,1/2+x,1/2-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
Nd1 Nd3+ 4 e 0. 0. 0.3544(2) 0.85 0 d
Ce1 Ce3+ 4 e 0. 0. 0.3544(2) 0.15 0 d
Cu1 Cu2+ 2 a 0. 0. 0. 1. 0 d
O1 O2- 4 c 0. 0.5 0. 1. 0 d
O2 O2- 4 d 0. 0.5 0.25 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Nd3+ 3.000
Ce3+ 3.000
Cu2+ 2.000
O2- -2.000