data_global
_amcsd_formula_title 'H10 Hf K4 O21'
loop_
_publ_author_name
'Tranqui D'
'Boyer P'
'Laugier J'
'Vulliet P'
_journal_name_full 'Acta Crystallographica, Section B'
_journal_volume 33 
_journal_year 1977
_journal_page_first 3126
_journal_page_last 3133
_publ_section_title
;
 Structure cristalline du tetrakisoxalatohafniate de potassium
 pentahydrate  K4 Hf (C2 O4)4 (H2 O)5
 _cod_database_code 1008018
;
_database_code_amcsd 0015966
_chemical_formula_sum 'Hf K4 O21 C8'
_cell_length_a 10.640
_cell_length_b 12.350
_cell_length_c 15.940
_cell_angle_alpha 90
_cell_angle_beta 94.27
_cell_angle_gamma 90
_cell_volume 2088.766
_exptl_crystal_density_diffrn      2.439
_symmetry_space_group_name_H-M 'P 1 21/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,1/2+z'
  '-x,1/2+y,1/2-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Hf1   0.76273   0.34876   0.17271
K1   0.12726   0.34486   0.24721
K2   0.01702   0.22821   0.51150
K3   0.50892   0.06103   0.30899
K4   0.39160   0.32650   0.40996
O1   0.63788   0.38921   0.27242
O2   0.87488   0.35036   0.29234
O3   0.88647   0.39037   0.42764
O4   0.62873   0.43314   0.40704
O5   0.56678   0.36980   0.11623
O6   0.76234   0.31897   0.03836
O7   0.65421   0.31489  -0.08427
O8   0.44291   0.37740  -0.00339
O9   0.93910   0.42186   0.13714
O10   0.74013   0.52285   0.16299
O11   0.82155   0.68276   0.13010
O12   0.03915   0.56884   0.09761
O13   0.90743   0.22115   0.16452
O14   0.67786   0.19200   0.19308
O15   0.70332   0.01329   0.20501
O16   0.95776   0.04939   0.18800
C1   0.68637   0.40347   0.34949
C2   0.82980   0.37886   0.36056
C3   0.54439   0.36146   0.03653
C4   0.65975   0.32883  -0.01118
C5   0.94762   0.52157   0.12290
C6   0.82844   0.58467   0.14013
C7   0.88430   0.12425   0.18171
C8   0.74065   0.10400   0.19579
O17   0.17197   0.42795   0.46924
O18   0.18617   0.15217   0.14905
O19   0.22442   0.40628   0.08490
O20   0.39409   0.25709   0.24569
O21   0.45955   0.13587   0.07610