data_global _chemical_name_mineral 'Kobyashevite' loop_ _publ_author_name 'Strandberg H' 'Langer V' 'Johansson L G' _journal_name_full 'Acta Chemica Scandinavica' _journal_volume 49 _journal_year 1995 _journal_page_first 5 _journal_page_last 10 _publ_section_title ; Structure of Cu2.5(OH)3SO4*2H2O: a novel corrosion product of copper ; _database_code_amcsd 0018667 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Cu5 S2 O18 H14' _cell_length_a 6.064 _cell_length_b 11.012 _cell_length_c 5.490 _cell_angle_alpha 102.68 _cell_angle_beta 92.43 _cell_angle_gamma 92.06 _cell_volume 356.956 _exptl_crystal_density_diffrn 3.182 _symmetry_space_group_name_H-M 'P -1' loop_ _space_group_symop_operation_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_U_iso_or_equiv Cu1 0.00000 0.00000 0.00000 0.01013 Cu2 0.50000 0.00000 0.00000 0.01013 Cu3 0.75100 -0.00280 0.50440 0.01001 Cu4 0.50000 0.50000 0.00000 0.01520 S 0.82340 0.27770 0.28690 0.01013 O1 0.76800 0.14500 0.24500 0.01140 O2 0.96500 0.29600 0.08700 0.01520 O3 0.62100 0.34500 0.27800 0.01393 O4 0.93800 0.32100 0.53100 0.01773 O-H1 0.73600 -0.09300 0.83400 0.01773 O-H2 0.50100 0.08400 0.70700 0.00633 O-H3 0.00600 0.08100 0.71100 0.01393 Wat1 0.22500 0.49200 0.14800 0.01900 Wat2 0.38800 0.36100 -0.29600 0.02026