data_global _amcsd_formula_title 'H2 Hg4 N O8 P' loop_ _publ_author_name 'Durif A' 'Tordjman I' 'Masse R' 'Guitel J' _journal_name_full 'Journal of Solid State Chemistry' _journal_volume 24 _journal_year 1978 _journal_page_first 101 _journal_page_last 105 _publ_section_title ; Structure cristalline du nitro-phosphate mercureux: Hg4PO4NO3(H2O) _cod_database_code 1007021 ; _database_code_amcsd 0013361 _chemical_formula_sum 'Hg4 P N O8' _cell_length_a 18.38 _cell_length_b 8.258 _cell_length_c 5.952 _cell_angle_alpha 90 _cell_angle_beta 91.2 _cell_angle_gamma 90 _cell_volume 903.209 _exptl_crystal_density_diffrn 7.173 _symmetry_space_group_name_H-M 'P 1 21/n 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Hg1 0.77047 0.53980 0.03700 Hg2 0.43128 0.91710 0.82540 Hg3 0.54060 0.80110 0.31170 Hg4 0.76661 -0.00040 0.06480 P1 0.36470 0.72020 0.23800 N1 0.37300 0.24500 0.24000 O1 0.09800 0.20400 0.49600 O2 0.42000 0.71700 0.43700 O3 0.18600 0.07300 0.24200 O4 0.17900 0.38400 0.25900 O5 0.34400 0.24600 0.04800 O6 0.34000 0.23100 0.41300 O7 0.44400 0.26000 0.23900 O8 0.43800 0.46200 0.71200