data_global _amcsd_formula_title 'AgBiSe2' loop_ _publ_author_name 'Geller S' 'Wernick J H' _journal_name_full 'Acta Crystallographica' _journal_volume 12 _journal_year 1959 _journal_page_first 46 _journal_page_last 54 _publ_section_title ; Ternary semiconducting compounds with sodium chloride-like structure: AgSbSe2, AgSbTe2, AgBiS2, AgBiSe2 Sample: quenched from T = 240 C ; _database_code_amcsd 0009216 _chemical_formula_sum 'Ag Bi Se2' _cell_length_a 7.022 _cell_length_b 7.022 _cell_length_c 7.022 _cell_angle_alpha 34.50 _cell_angle_beta 34.50 _cell_angle_gamma 34.50 _cell_volume 99.098 _exptl_crystal_density_diffrn 7.956 _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 Ag 0.00000 0.00000 0.00000 Bi 0.50000 0.50000 0.50000 Se 0.26000 0.26000 0.26000