data_global _amcsd_formula_title 'Ag Hg2 O4 P' loop_ _publ_author_name 'Masse R' 'Guitel J' 'Durif A' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 23 _journal_year 1978 _journal_page_first 369 _journal_page_last 373 _publ_section_title ; Structure cristalline du monophosphate Ag Hg2 P O4. Donnees cristallographiques sur Ag Hg2 As O4 _cod_database_code 1007029 ; _database_code_amcsd 0013359 _chemical_formula_sum 'Hg2 Ag P O4' _cell_length_a 9.256 _cell_length_b 8.614 _cell_length_c 6.152 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 490.506 _exptl_crystal_density_diffrn 8.179 _symmetry_space_group_name_H-M 'P b a m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,-z' '1/2-x,1/2+y,z' '1/2+x,1/2-y,-z' 'x,y,-z' '-x,-y,z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Hg1 0.03050 0.25148 0.21180 Ag1 0.35010 0.02920 0.00000 P1 0.28570 0.45560 0.50000 O1 0.19400 0.05000 0.28600 O2 0.13200 0.38400 0.50000 O3 0.40500 0.32600 0.50000