data_global
_amcsd_formula_title 'Na4 O18 P6 Pb'
loop_
_publ_author_name
'Averbuch-Pouchot M'
'Durif A'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 164 
_journal_year 1983
_journal_page_first 307
_journal_page_last 313
_publ_section_title
;
 Crystal structure of lead-tetrasodium trimetaphosphate: PbNa4(P3O9)2,
 Crystal data for Ba Na4 (P3 O9)2
 _cod_database_code 1007084
;
_database_code_amcsd 0010857
_chemical_formula_sum 'Pb Na4 P6 O18'
_cell_length_a 7.268
_cell_length_b 8.151
_cell_length_c 7.851
_cell_angle_alpha 121.52
_cell_angle_beta 102.06
_cell_angle_gamma 73.00
_cell_volume 378.259
_exptl_crystal_density_diffrn      3.393
_symmetry_space_group_name_H-M 'P -1'
loop_
_space_group_symop_operation_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_occupancy
Pb1   0.07970   0.19700   0.16961   0.50000
Na1   0.07970   0.19700   0.16961   0.50000
P1   0.23070   0.97910   0.67950   1.00000
P2   0.50460   0.77850   0.04640   1.00000
P3   0.76560   0.66710   0.32090   1.00000
Na2   0.17880   0.65750   0.17590   1.00000
Na3   0.50000   0.50000   0.50000   1.00000
O1   0.25250   0.77020   0.52050   1.00000
O2   0.07390   0.07080  -0.17890   1.00000
O3   0.43320   0.01150   0.80580   1.00000
O4   0.20620   0.11020   0.57450   1.00000
O5   0.29190   0.82130   0.01890   1.00000
O6   0.37320   0.34200   0.12890   1.00000
O7   0.26300   0.36520   0.51880   1.00000
O8   0.07800   0.47190  -0.18270   1.00000
O9   0.43680   0.31920   0.80940   1.00000