#------------------------------------------------------------------------------
#$Date: 2010-01-30 15:59:17 +0200 (Sat, 30 Jan 2010) $
#$Revision: 966 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/1011144.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_1011144
_chemical_name_systematic          'Antimony phyllo-tetraoxotantalate'
_chemical_name_mineral             'Stibiotantalite'
_chemical_compound_source          'from Mesa Grande, California'
_chemical_formula_structural       'Sb (Ta O4)'
_chemical_formula_sum              'O4 Sb Ta'
_publ_section_title
;
Ueber den Bau des wahren Antimontetroxyds und des damit isomorphen
Stibiotantalits, Sb Ta O4
;
loop_
_publ_author_name                  'Dihlstroem, K'
_journal_name_full
;
Zeitschrift fuer Anorganische und Allgemeine Chemie
;
_journal_coden_ASTM                ZAACAB
_journal_volume                    239
_journal_year                      1938
_journal_page_first                57
_journal_page_last                 64
_cell_length_a                     4.916
_cell_length_b                     5.542
_cell_length_c                     11.78
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  90
_cell_volume                       320.9
_cell_formula_units_Z              4
_exptl_crystal_density_meas        7.3
_symmetry_space_group_name_H-M     'P n a 21'
_symmetry_Int_Tables_number        33
_symmetry_cell_setting             orthorhombic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-x,-y,1/2+z'
  '1/2-x,1/2+y,1/2+z'
  '1/2+x,1/2-y,z'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Sb3+   3.000
  Ta5+   5.000
  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
  Sb1   Sb3+   4 a -0.04 0. 0. 1.  0 d
  Ta1   Ta5+   4 a 0. 0.375 0.25 1.  0 d
  O1    O2-    4 a 0.16 0.33 0.09 1.  0 d
  O2    O2-    4 a 0.75 0.12 0.17 1.  0 d
  O3    O2-    4 a 0.25 0.12 0.33 1.  0 d
  O4    O2-    4 a 0.84 0.33 0.41 1.  0 d
_cod_database_code 1011144