data_global _chemical_name_mineral 'Letovicite' loop_ _publ_author_name 'Leclaire A' 'Ledesert M' 'Monier J' 'Daoud A' 'Damak M' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 41 _journal_year 1985 _journal_page_first 209 _journal_page_last 213 _publ_section_title ; Structure du disulfate acide de triammonium. Une redetermination. Relations des chaines de liaisons hydrogene avec la morphologie et la conductivite eletrique _cod_database_code 1001784 ; _database_code_amcsd 0009806 _chemical_formula_sum 'S2 N3 O8 H13' _cell_length_a 15.435 _cell_length_b 5.865 _cell_length_c 10.1696 _cell_angle_alpha 90 _cell_angle_beta 101.829 _cell_angle_gamma 90 _cell_volume 901.065 _exptl_crystal_density_diffrn 1.823 _symmetry_space_group_name_H-M 'C 1 2/c 1' 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' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy S1 0.11418 0.21828 0.46135 1.00000 N1 0.50000 0.23039 0.25000 1.00000 N2 0.19893 0.27573 0.15266 1.00000 O1 0.01415 0.18463 0.44256 1.00000 O2 0.15024 0.22318 0.60589 1.00000 O3 0.12909 0.43451 0.39838 1.00000 O4 0.14906 0.02625 0.39784 1.00000 H1 -0.00100 0.04700 0.47900 0.50000 H2 0.47600 0.15000 0.19100 1.00000 H3 0.46100 0.30400 0.27600 1.00000 H4 0.18600 0.28400 0.22800 1.00000 H5 0.19300 0.15300 0.11300 1.00000 H6 0.25700 0.31000 0.16400 1.00000 H7 0.17500 0.38900 0.11200 1.00000