data_global _amcsd_formula_title 'CuHgClSe' loop_ _publ_author_name 'Guillo M' 'Mercey B' 'Labbe P' 'Deschanvres A' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 36 _journal_year 1980 _journal_page_first 2520 _journal_page_last 2523 _publ_section_title ; The Structure of Copper(I) Mercury(II) Chloride Selenide _cod_database_code 1001109 ; _database_code_amcsd 0009717 _chemical_formula_sum 'Hg Se Cu Cl' _cell_length_a 6.9444 _cell_length_b 12.7561 _cell_length_c 4.2526 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 376.710 _exptl_crystal_density_diffrn 6.675 _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 0.10824 0.26060 0.00000 Se1 0.33940 0.11180 0.00000 Cu1 0.24450 0.04610 0.50000 Cl1 0.35450 0.37670 0.50000 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Hg1 0.00860 0.00300 0.03730 0.00150 0.00000 0.00000 Se1 0.00740 0.00160 0.02630 -0.00020 0.00000 0.00000 Cu1 0.04320 0.00350 0.03550 -0.00580 0.00000 0.00000 Cl1 0.01110 0.00190 0.03400 0.00090 0.00000 0.00000