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#$Date: 2015-01-27 21:58:39 +0200 (Tue, 27 Jan 2015) $
#$Revision: 130149 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/00/60/1006054.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_1006054
loop_
_publ_author_name
'Salinas-Sanchez, A'
'Garcia-Munoz, J L'
'Rodriguez-Carvajal, J'
'Saez-Puche, R'
'Martinez, J L'
_publ_section_title
;
Structural characterization of R~2~BaCuO~5~
(R=Y,Lu,Yb,Tm,Er,Ho,Dy,Gd,Eu and Sm) oxides by X-ray and neutron
diffraction
;
_journal_coden_ASTM              JSSCBI
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              201
_journal_page_last               211
_journal_paper_doi               10.1016/0022-4596(92)90094-C
_journal_volume                  100
_journal_year                    1992
_chemical_formula_structural     'Er2 Ba Cu O5'
_chemical_formula_sum            'Ba Cu Er2 O5'
_chemical_name_systematic        'Dierbium barium copper oxide'
_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                   12.1423(2)
_cell_length_b                   5.6459(1)
_cell_length_c                   7.1072(1)
_cell_volume                     487.2
_refine_ls_R_factor_all          0.064
_cod_database_code               1006054
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 0.9057(4) 0.25 0.9307(7) 1. 0 d
Er1 Er3+ 4 c 0.2885(2) 0.25 0.1171(4) 1. 0 d
Er2 Er3+ 4 c 0.0743(3) 0.25 0.3965(4) 1. 0 d
Cu1 Cu2+ 4 c 0.6599(3) 0.25 0.7123(4) 1. 0 d
O1 O2- 8 d 0.4333(2) -0.0076(6) 0.1661(3) 1. 0 d
O2 O2- 8 d 0.2283(2) 0.5024(7) 0.3571(4) 1. 0 d
O3 O2- 4 c 0.1008(3) 0.25 0.0832(6) 1. 0 d
loop_
_atom_type_symbol
_atom_type_oxidation_number
Ba2+ 2.000
Er3+ 3.000
Cu2+ 2.000
O2- -2.000