#------------------------------------------------------------------------------
#$Date: 2009-05-13 19:45:18 +0100 (Wed, 13 May 2009) $
#$Revision: 720 $
#$URL: svn://www.crystallography.net/cod/cif/1/1010669.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_1010669
_chemical_name_systematic          'Dodecatungstosilicic acid 24-hydrate'
_chemical_formula_structural       'H4 Si W12 O40 (H2 O)24'
_chemical_formula_sum              'H52 O64 Si W12'
_publ_section_title
;
Untersuchungen ueber das Kristallgitter von Heteropoly-saeuren und
deren Salzen
;
loop_
_publ_author_name                  'Kraus, O'
_journal_name_full
;
Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik,
Kristallchemie (-144,1977)
;
_journal_coden_ASTM                ZEKGAX
_journal_volume                    91
_journal_year                      1935
_journal_page_first                402
_journal_page_last                 409
_cell_length_a                     12.98
_cell_length_b                     12.98
_cell_length_c                     18.52
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  90
_cell_volume                       3120.3
_cell_formula_units_Z              2
_exptl_crystal_density_meas        3.7
_symmetry_space_group_name_H-M     'P 4/m n c'
_symmetry_Int_Tables_number        128
_symmetry_cell_setting             tetragonal
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-x,-y,z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2+z'
  '-y,x,z'
  'y,-x,z'
  '1/2+y,1/2+x,1/2+z'
  '1/2-y,1/2-x,1/2+z'
  '-x,-y,-z'
  'x,y,-z'
  '1/2-x,1/2+y,1/2-z'
  '1/2+x,1/2-y,1/2-z'
  'y,-x,-z'
  '-y,x,-z'
  '1/2-y,1/2-x,1/2-z'
  '1/2+y,1/2+x,1/2-z'