#------------------------------------------------------------------------------
#$Date: 2009-11-18 16:56:34 +0200 (Wed, 18 Nov 2009) $
#$Revision: 858 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/1008183.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_1008183
_chemical_name_systematic          'Copper silver trihydrogenbis(arsenate)'
_chemical_formula_structural       'Cu Ag H3 (As O4)2'
_chemical_formula_sum            'Ag As2 Cu H3 O8'
_[local]_cod_chemical_formula_sum_orig 'H3 Ag As2 Cu O8'
_publ_section_title
;
Structure Cristalline d'un Orthoarseniate Acide Mixte de Cuivre(II)-
Argent: Cu Ag H~3~ (As O~4~)~2~
;
loop_
_publ_author_name
  'Boudjada, A'
  'Masse, R'
  'Guitel, J C'
_journal_name_full                 'Acta Crystallographica B (24,1968-38,1982)'
_journal_coden_ASTM                ACBCAR
_journal_volume                    38
_journal_year                      1982
_journal_page_first                710
_journal_page_last                 713
_cell_length_a                     9.716(3)
_cell_length_b                     7.704(3)
_cell_length_c                     9.209(3)
_cell_angle_alpha                  90
_cell_angle_beta                   103.73(2)
_cell_angle_gamma                  90
_cell_volume                       669.6
_cell_formula_units_Z              4
_symmetry_space_group_name_H-M     'P 1 21/a 1'
_symmetry_Int_Tables_number        14
_symmetry_cell_setting             monoclinic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '1/2-x,1/2+y,-z'
  '-x,-y,-z'
  '1/2+x,1/2-y,z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Ag1+   1.000
  As5+   5.000
  Cu2+   2.000
  O2-   -2.000
  H1+    1.000
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
  Ag1   Ag1+   4 e 0.97033(9) 0.7515(1) 0.22363(8) 1.  0 d
  As1   As5+   4 e 0.82207(9) 0.3032(1) 0.07017(9) 1.  0 d
  As2   As5+   4 e 0.29450(9) 0.5092(1) 0.47073(9) 1.  0 d
  Cu1   Cu2+   4 e 0.4918(1) 0.1780(1) 0.4048(1) 1.  0 d
  O1    O2-    4 e 0.9224(7) 0.1193(9) 0.0798(8) 1.  0 d
  O2    O2-    4 e 0.8782(7) 0.4346(9) 0.2157(6) 1.  0 d
  O3    O2-    4 e 0.6559(6) 0.2344(8) 0.0430(7) 1.  0 d
  O4    O2-    4 e 0.8461(7) 0.4005(8) -0.0893(6) 1.  0 d
  O5    O2-    4 e 0.3471(7) 0.4693(9) 0.6622(7) 1.  0 d
  O6    O2-    4 e 0.3393(7) 0.3441(8) 0.3768(7) 1.  0 d
  O7    O2-    4 e 0.1157(6) 0.5283(8) 0.4270(6) 1.  0 d
  O8    O2-    4 e 0.3764(6) 0.6938(8) 0.4405(7) 1.  3 d
  H1    H1+    4 e -1. -1. -1. 3.  0 dum
_refine_ls_R_factor_all            0.031