data_9004905
_chemical_name 'Cu2V2O7'
loop_
_publ_author_name
'Krivovichev S V'
'Filatov S K'
'Cherepansky P N'
'Armbruster T'
'Pankratova O Y'
_journal_name_full "The Canadian Mineralogist"
_journal_volume 43
_journal_year 2005
_journal_page_first 671
_journal_page_last 677
_publ_section_title
;
 The crystal structure of gamma-Cu2V2O7 and its comparison to blossite
 (alpha-Cu2V2O7) and ziesite (beta-Cu2V2O7)
;
_chemical_formula_sum 'Cu2 V2 O7'
_cell_length_a 5.0873
_cell_length_b 5.8233
_cell_length_c 9.4020
_cell_angle_alpha 99.780
_cell_angle_beta 97.253
_cell_angle_gamma 97.202
_cell_volume 269.201
_symmetry_space_group_name_H-M 'P -1'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_Uiso_or_equiv
Cu1   0.26344   0.15492   0.51698   0.01280
Cu2   0.28090   0.14584   0.00655   0.01260
V1   0.16373  -0.32508   0.21877   0.00950
V2   0.28516  -0.26957   0.69728   0.00910
O1   0.08850  -0.10780   0.60230   0.01180
O2   0.41450  -0.17740   0.34980   0.01410
O3   0.04860  -0.12930   0.11950   0.01330
O4   0.38460  -0.12480   0.87740   0.01230
O5   0.10510  -0.55500   0.68910   0.01450
O6   0.54980  -0.31360   0.61760   0.01230
O7   0.26370  -0.54290   0.10960   0.01950