data_global
_amcsd_formula_title 'B4 Ni7 O16 U'
loop_
_publ_author_name
'Gasperin M'
_journal_name_full 'Acta Crystallographica, Section C'
_journal_volume 45 
_journal_year 1989
_journal_page_first 981
_journal_page_last 983
_publ_section_title
;
 Synthese et structure du tetraborouranate de nickel, Ni7 B4 U O16
 _cod_database_code 1001392
;
_database_code_amcsd 0010077
_chemical_formula_sum 'U Ni7 B4 O16'
_cell_length_a 5.861
_cell_length_b 20.200
_cell_length_c 4.501
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 532.883
_exptl_crystal_density_diffrn      5.909
_symmetry_space_group_name_H-M 'P m n n'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2-z'
  '1/2-x,1/2-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2-z'
  '-x,y,z'
  'x,-y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
U1   0.00000   0.00000   0.00000
Ni1   0.00000   0.50000   0.00000
Ni2   0.00000   0.26280   0.49960
Ni3   0.24880   0.12890   0.49800
B1   0.00000   0.58740   0.55280
B2   0.00000   0.19210   0.05100
O1   0.19810   0.20500   0.20410
O2   0.00000   0.17650   0.74550
O3   0.00000   0.34660   0.27460
O4   0.29110   0.05100   0.78460
O5   0.00000   0.07040   0.28560
O6   0.00000   0.58590   0.24990