#------------------------------------------------------------------------------
#$Date: 2010-01-30 13:59:17 +0000 (Sat, 30 Jan 2010) $
#$Revision: 966 $
#$URL: svn://www.crystallography.net/cod/cif/2/2002528.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_2002528
_chemical_name_systematic          'Copper ytterbium ditungsten octaoxide'
_chemical_formula_structural       'Cu Yb W2 O8'
_chemical_formula_sum              'Cu O8 W2 Yb'
_publ_section_title
;
Ein Beitrag zur Kristallstruktur von Cu Y W2 O8, Cu Ho W2 O8 und Cu Yb
W2 O8
;
loop_
_publ_author_name
  'Mueller-Buschbaum, Hk'
  'Krueger, T'
_journal_name_full
;
Zeitschrift fuer Anorganische und Allgemeine Chemie
;
_journal_volume                    607
_journal_year                      1992
_journal_page_first                52
_journal_page_last                 56
_cell_length_a                     9.948(2)
_cell_length_b                     5.824(2)
_cell_length_c                     5.008(1)
_cell_angle_alpha                  90
_cell_angle_beta                   93.36(3)
_cell_angle_gamma                  90
_cell_volume                       289.7
_cell_formula_units_Z              2
_symmetry_space_group_name_H-M     'P 1 2/n 1'
_symmetry_Int_Tables_number        13
_symmetry_cell_setting             monoclinic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-x,-y,-z'
  '1/2-x,y,1/2-z'
  '1/2+x,-y,1/2+z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Cu1+   1.000
  W6+    6.000
  Yb3+   3.000
  O2-   -2.000
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
  Cu1   Cu1+   2 f 0.25 0.2754(11) 0.75 1.  0 d
  W1    W6+    4 g 0.0141(1) 0.1798(2) 0.2510(2) 1.  0 d
  Yb1   Yb3+   2 e 0.25 0.6952(3) 0.25 1.  0 d
  O1    O2-    4 g 0.8863(20) 0.3672(34) 0.0965(38) 1.  0 d
  O2    O2-    4 g 0.4039(21) 0.8884(34) 0.0529(39) 1.  0 d
  O3    O2-    4 g 0.8875(21) 0.9175(35) 0.0329(39) 1.  0 d
  O4    O2-    4 g 0.3655(20) 0.3767(34) 0.0957(39) 1.  0 d
_refine_ls_R_factor_all            0.048
_cod_database_code 2002528