data_global
_amcsd_formula_title 'Na1.5 O32 P4 W8'
loop_
_publ_author_name
'Benmmoussa A'
'Groult D'
'Labbe P'
'Raveau B'
_journal_name_full 'Acta Crystallographica, Section C'
_journal_volume 40 
_journal_year 1984
_journal_page_first 573
_journal_page_last 576
_publ_section_title
;
 Two New Members of a Series of Monoclinic Sodium Phosphate Tungsten
 Bronzes Nax P4 O8 (W O3)2m: Nax P4 W8 O32 (m=4) and
 Nax P4 W12 O44 (m=6)
 _cod_database_code 1001271
;
_database_code_amcsd 0009990
_chemical_formula_sum 'W2 P O8 Na.375'
_cell_length_a 17.788
_cell_length_b 5.277
_cell_length_c 6.607
_cell_angle_alpha 90
_cell_angle_beta 99.64
_cell_angle_gamma 90
_cell_volume 611.424
_exptl_crystal_density_diffrn      5.815
_symmetry_space_group_name_H-M 'P 1 21/a 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2-y,z'
  '1/2-x,1/2+y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
W1   0.20591   0.26064   0.14025   1.00000
W2   0.37481   0.25849   0.56011   1.00000
P1   0.06340   0.27400   0.71420   1.00000
O1   0.11050   0.24500   0.93080   1.00000
O2   0.08460   0.06700   0.57510   1.00000
O3   0.42660   0.04160   0.36890   1.00000
O4   0.47940   0.26840   0.74100   1.00000
O5   0.15050   0.48290   0.30210   1.00000
O6   0.16190  -0.02410   0.26420   1.00000
O7   0.28930   0.26180   0.36200   1.00000
O8   0.25720   0.03840   0.98500   1.00000
Na1   0.00800   0.22500   0.13900   0.37500
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
W1 0.00490 0.00446 0.00419 0.00002 -0.00010 0.00008
W2 0.00476 0.00383 0.00422 0.00011 0.00011 -0.00019