data_global _amcsd_formula_title 'Na2Se(H2O)5' loop_ _publ_author_name 'Bedlivy D' 'Preisinger A' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 121 _journal_year 1965 _journal_page_first 131 _journal_page_last 144 _publ_section_title ; Die kristallstruktur von Na2S*5H2O, Na2Se*5H2O und Na2Te*5H2O ; _database_code_amcsd 0010616 _chemical_formula_sum 'Na2 Se (O5 H10)' _cell_length_a 6.569 _cell_length_b 12.873 _cell_length_c 8.912 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 753.623 _exptl_crystal_density_diffrn 1.895 _symmetry_space_group_name_H-M 'C m c m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '-x,y,1/2-z' '1/2-x,1/2+y,1/2-z' '-x,y,z' '1/2-x,1/2+y,z' 'x,-y,-z' '1/2+x,1/2-y,-z' 'x,y,1/2-z' '1/2+x,1/2+y,1/2-z' '-x,-y,1/2+z' '1/2-x,1/2-y,1/2+z' '-x,-y,-z' '1/2-x,1/2-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Na1 0.00000 0.00000 0.00000 Na2 0.50000 0.04500 0.75000 Se 0.00000 0.31100 0.75000 Wat1 0.00000 0.08000 0.25000 Wat2 0.26000 0.12100 0.57500