data_1001271
_chemical_name_systematic          'Sodium tungstate phosphate *'
_chemical_formula_structural       'Na1.5 P4 W8 O32'
_chemical_formula_sum              'Na1.5 O32 P4 W8'
_publ_section_title
;
Two New Members of a Series of Monoclinic Sodium Phosphate Tungsten
Bronzes Na~x~ P~4~ O~8~ (W O~3~)~2m~: Na~x~ P~4~ W~8~ O~32~ (m=4) and
Na~x~ P~4~ W~12~ O~44~ (m=6)
;
loop_
_publ_author_name
  'Benmmoussa, A'
  'Groult, D'
  'Labbe, Ph'
  'Raveau, B'
_journal_name_full                 'Acta Crystallographica C (39,1983-)'
_journal_coden_ASTM                ACSCEE
_journal_volume                    40
_journal_year                      1984
_journal_page_first                573
_journal_page_last                 576
_cell_length_a                     17.788(11)
_cell_length_b                     5.277(4)
_cell_length_c                     6.607(5)
_cell_angle_alpha                  90
_cell_angle_beta                   99.64(5)
_cell_angle_gamma                  90
_cell_volume                       611.4
_cell_formula_units_Z              1
_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
  W5+    5.313
  P5+    5.000
  O2-   -2.000
  Na1+   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
  W1    W5+    4 e 0.20591(1) 0.26064(11) 0.14025(5) 1.  0 d
  W2    W5+    4 e 0.37481(1) 0.25849(13) 0.56011(5) 1.  0 d
  P1    P5+    4 e 0.0634(1) 0.2740(5) 0.7142(3) 1.  0 d
  O1    O2-    4 e 0.1105(5) 0.245(3) 0.9308(14) 1.  0 d
  O2    O2-    4 e 0.0846(6) 0.067(2) 0.5751(18) 1.  0 d
  O3    O2-    4 e 0.4266(5) 0.0416(18) 0.3689(16) 1.  0 d
  O4    O2-    4 e 0.4794(4) 0.2684(17) 0.7410(11) 1.  0 d
  O5    O2-    4 e 0.1505(5) 0.4829(17) 0.3021(16) 1.  0 d
  O6    O2-    4 e 0.1619(5) -0.0241(16) 0.2642(14) 1.  0 d
  O7    O2-    4 e 0.2893(5) 0.2618(19) 0.3620(14) 1.  0 d
  O8    O2-    4 e 0.2572(5) 0.0384(17) 0.9850(15) 1.  0 d
  Na1   Na1+   4 e 0.008(2) 0.225(9) 0.139(7) 0.375  0 d
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_22
_atom_site_aniso_U_23
_atom_site_aniso_U_33
  W1    0.00490(8) 0.00002(10) -0.00010(1) 0.00446(11) 0.00008(2) 0.00419(11)
  W2    0.00476(8) 0.00011(12) 0.00011(7) 0.00383(11) -0.00019(12) 0.00422(11)
_refine_ls_R_factor_all            0.055