#------------------------------------------------------------------------------
#$Date: 2008-01-13 22:15:36 +0000 (Sun, 13 Jan 2008) $
#$Revision: 14 $
#$URL: svn://www.crystallography.net/cod/cif/9/9009777.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_9009777
_chemical_name 'Bi4O7'
loop_
_publ_author_name
'Dinnebier R E'
'Ibberson R M'
'Ehrenberg H'
'Jansen M'
_journal_name_full "Journal of Solid State Chemistry"
_journal_volume 163
_journal_year 2002
_journal_page_first 332
_journal_page_last 339
_publ_section_title
;
 The crystal structures of the binary valence compound Bi3BiO7 and isotypic
 Bi3SbO7 as determined by high resolution X-ray and neutron powder diffraction
;
_chemical_formula_sum 'Bi4 O7'
_cell_length_a 6.7253
_cell_length_b 6.9950
_cell_length_c 7.7961
_cell_angle_alpha 72.566
_cell_angle_beta 88.842
_cell_angle_gamma 76.925
_cell_volume 340.390
_symmetry_space_group_name_H-M 'P -1'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_Uiso_or_equiv
Bi1+3   0.72930   0.48500   0.62530   0.01300
Bi2+3   0.26150   0.49300  -0.12130   0.01000
Bi3+5   0.00000   0.00000   0.00000   0.00700
Bi4+3   0.48480   0.00420   0.25690   0.01300
Bi5+5   0.00000   0.00000   0.50000   0.01000
O1   0.10800   0.68400   0.04000   0.01300
O2   0.89100   0.32100   0.36400   0.01000
O3   0.10500  -0.08700   0.27400   0.00800
O4   0.52500   0.65700   0.37200 ?
O5   0.28700   0.07000   0.52100   0.01700
O6   0.28500   0.04000  -0.05700   0.01400
O7   0.47200   0.36500   0.19500   0.00800