data_global
_amcsd_formula_title 'H4 N Ni O9 P3'
loop_
_publ_author_name
'Tordjman I'
'Tranqui D'
'Durif A'
'Averbuch M'
_journal_name_full 'Bulletin de la Societe Francaise de Mineralogie et de Cristallographie'
_journal_volume 91 
_journal_year 1968
_journal_page_first 242
_journal_page_last 246
_publ_section_title
;
 Structure cristalline du metaphosphate de nickel-ammonium rhomboedrique
 Ni N H4 (P O3)3. Donnees cristallographique sur les
 metaphosphates rhomboedriques du type M^II^ N H4 (P O3)3 (M^II^ = Ni,Co,Mg)
 _cod_database_code 1007049
;
_database_code_amcsd 0012128
_chemical_formula_sum 'Ni N P3 O9'
_cell_length_a 10.13
_cell_length_b 10.13
_cell_length_c 7.098
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 630.791
_exptl_crystal_density_diffrn      2.445
_symmetry_space_group_name_H-M 'R 3 2'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '2/3+x,1/3+y,1/3+z'
  '1/3+x,2/3+y,2/3+z'
  '-x,-x+y,-z'
  '2/3-x,1/3-x+y,1/3-z'
  '1/3-x,2/3-x+y,2/3-z'
  'y,x,-z'
  '2/3+y,1/3+x,1/3-z'
  '1/3+y,2/3+x,2/3-z'
  'x-y,-y,-z'
  '2/3+x-y,1/3-y,1/3-z'
  '1/3+x-y,2/3-y,2/3-z'
  '-y,x-y,z'
  '2/3-y,1/3+x-y,1/3+z'
  '1/3-y,2/3+x-y,2/3+z'
  '-x+y,-x,z'
  '2/3-x+y,1/3-x,1/3+z'
  '1/3-x+y,2/3-x,2/3+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Ni1   0.00000   0.00000   0.00000
N1   0.00000   0.00000   0.50000
P1   0.43000   0.00000   0.50000
O1   0.18900   0.09400   0.17300
O2   0.35500   0.00000   0.00000