data_2300039
_journal_name_full  'Journal of Applied Crystallography'
_journal_year  2003
_journal_volume  36
_journal_page_first  1361
_journal_page_last  1367
_chemical_formula_sum  "Ni2 O7 P2"
_chemical_formula_weight  291.36
_symmetry_cell_setting  monoclinic
_symmetry_space_group_name_H-M  "B 21/c"
loop_
_symmetry_equiv_pos_site_id
_symmetry_equiv_pos_as_xyz
  1 +x,+y,+z
  2 -x,+y+1/2,-z+1/2
  -1 -x,-y,-z
  -2 +x,-y+1/2,+z+1/2
  101 +x+1/2,+y,+z+1/2
  102 -x+1/2,+y+1/2,-z
  -101 -x+1/2,-y,-z+1/2
  -102 +x+1/2,-y+1/2,+z
_cell_length_a  13.1459(16)
_cell_length_b  8.2711(11)
_cell_length_c  8.9714(11)
_cell_angle_alpha  90.0
_cell_angle_beta  104.949(9)
_cell_angle_gamma  90.0
_cell_volume  942.45276
_cell_formula_units_Z  8
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_thermal_displace_type
_atom_site_occupancy
_atom_site_type_symbol
  NI1 0.35256 0.07453 0.02695 0.027(6) Uiso 1.0 NI
  NI2 0.11614 0.92621 -0.00027 0.027(6) Uiso 1.0 NI
  P3 0.47678 0.7379 0.20844 0.026(9) Uiso 1.0 P
  P4 0.21345 0.27121 0.19917 0.026(9) Uiso 1.0 P
  O5 0.11981 0.3445 0.25335 -0.002(9) Uiso 1.0 O
  O6 0.19421 0.71279 0.15698 -0.002(9) Uiso 1.0 O
  O7 0.43667 0.27553 0.1447 -0.002(9) Uiso 1.0 O
  O8 0.20975 0.11397 0.1072 -0.002(9) Uiso 1.0 O
  O9 0.50919 0.60492 0.11089 -0.002(9) Uiso 1.0 O
  O10 0.25663 0.40816 0.11784 -0.002(9) Uiso 1.0 O
  O11 0.43818 0.89372 0.11792 -0.002(9) Uiso 1.0 O