data_global _amcsd_formula_title 'H Na S' loop_ _publ_author_name 'West C' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 88 _journal_year 1934 _journal_page_first 97 _journal_page_last 115 _publ_section_title ; The Crystal Structures of Some Alkali Hydrosulfides and Monosulfides. _cod_database_code 1010251 ; _database_code_amcsd 0017182 _chemical_formula_sum 'Na S' _cell_length_a 3.99 _cell_length_b 3.99 _cell_length_c 3.99 _cell_angle_alpha 68.08 _cell_angle_beta 68.08 _cell_angle_gamma 68.08 _cell_volume 52.610 _exptl_crystal_density_diffrn 1.738 _symmetry_space_group_name_H-M 'R -3 m' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-z,-y' '-z,-x,-y' 'y,x,z' 'y,z,x' '-z,-y,-x' '-x,-y,-z' 'x,z,y' 'z,x,y' '-y,-x,-z' '-y,-z,-x' 'z,y,x' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Na1 0.00000 0.00000 0.00000 S1 0.50000 0.50000 0.50000