#------------------------------------------------------------------------------
#$Date: 2015-01-27 20:58:39 +0100 (Tue 27 de Jan de 2015) $
#$Revision: 130149 $
#$URL: svn://www.crystallography.net/cod/cif/1/00/60/1006038.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_1006038
loop_
_publ_author_name
'Salinas-Sanchez, A'
'Saez-Puche, R'
'Rodriguez-Carvajal, J'
'Martinez, J L'
_publ_section_title
;
Structural characterization of R₂BaNiO₅ (R=Tm and Yb): polymorphism
for R=Tm
;
_journal_coden_ASTM              SSCOA4
_journal_issue                   6
_journal_name_full               'Solid State Communications'
_journal_page_first              481
_journal_page_last               488
_journal_paper_doi               10.1016/0038-1098(91)90361-X
_journal_volume                  78
_journal_year                    1991
_chemical_formula_structural     'Yb2 Ba (Ni O5)'
_chemical_formula_sum            'Ba Ni O5 Yb2'
_chemical_name_systematic        'Diytterbium barium niccolate'
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      62
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.1583(2)
_cell_length_b                   5.64232(6)
_cell_length_c                   6.9545(1)
_cell_volume                     477.1
_refine_ls_R_factor_all          0.051
_cod_database_code               1006038
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
1/2+x,1/2-y,1/2-z
-x,1/2+y,-z
1/2-x,-y,1/2+z
-x,-y,-z
1/2-x,1/2+y,1/2+z
x,1/2-y,z
1/2+x,y,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
Ba1 Ba2+ 4 c 0.9038(3) 0.25 0.9250(6) 1. 0 d
Yb1 Yb3+ 4 c 0.2915(1) 0.25 0.1241(3) 1. 0 d
Yb2 Yb3+ 4 c 0.0744(2) 0.25 0.3994(2) 1. 0 d
Ni1 Ni2+ 4 c 0.6560(2) 0.25 0.6955(3) 1. 0 d
O1 O2- 8 d 0.4359(2) -0.0030(4) 0.1699(3) 1. 0 d
O2 O2- 8 d 0.2250(2) 0.5001(5) 0.3642(4) 1. 0 d
O3 O2- 4 c 0.1037(3) 0.25 0.0791(6) 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Ba2+ 2.000
Yb3+ 3.000
Ni2+ 2.000
O2- -2.000
