data_global
_chemical_name_mineral 'Volborthite'
loop_
_publ_author_name
'Kashaev A A'
'Rozhdestvenskaya I V'
'Bannova I I'
'Sapozhnikov A N'
'Glebova O D'
_journal_name_full 'Journal of Structural Chemistry'
_journal_volume 49 
_journal_year 2008
_journal_page_first 708
_journal_page_last 711
_publ_section_title
;
 Balance, uniformity, and asymmetry of the structure of volborthite
 Cu3(OH)2(V2O7)*2H2O
;
_database_code_amcsd 0018692
_chemical_compound_source 'not given'
_chemical_formula_sum 'Cu3 V2 O11 H6'
_cell_length_a 10.646
_cell_length_b 5.867
_cell_length_c 14.432
_cell_angle_alpha 90
_cell_angle_beta 95.19
_cell_angle_gamma 90
_cell_volume 897.728
_exptl_crystal_density_diffrn      3.511
_symmetry_space_group_name_H-M 'I 1 a 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  '1/2+x,-y,z'
  '+x,1/2-y,1/2+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Cu1   0.00000   0.74920   0.00000   0.00760
Cu2   0.24954   0.00000   0.49886   0.00630
Cu3   0.24380   0.49050   0.50135   0.00880
V1   0.00232   0.27380   0.87181   0.00610
V2   0.49457   0.77200   0.12562   0.00610
O1   0.57050   0.00980   0.08780   0.00870
O2  -0.06780   0.50210   0.91400   0.01400
O3   0.33890   0.74590   0.57610   0.00660
O4   0.15580   0.24390   0.42520   0.01330
O5   0.07720   0.46060   0.09970   0.01360
O6   0.42620   0.95320   0.89830   0.01140
O7   0.50110   0.79600   0.24830   0.01950
O-H1   0.15850   0.75170   0.93910   0.00980
O-H2   0.34380   0.25340   0.05610   0.00460
OW1   0.31930   0.22950   0.73750   0.03200
OW2   0.16880   0.75220   0.25860   0.05000
H1   0.66100   0.24700   0.37900   0.01700
H2   0.35200   0.24200   0.13800   0.01800
H3   0.85700   0.84800   0.28900   0.08400
H4   0.80800   0.86500   0.78100   0.03800
H5   0.62500   0.16700   0.20100   0.06300
H6   0.17000   0.62000   0.21500 ?