data_global _amcsd_formula_title 'Cs2 P2 Si' loop_ _publ_author_name 'Eisenmann B' 'Klein J' _journal_name_full 'Journal of the Less-Common Metals' _journal_volume 175 _journal_year 1991 _journal_page_first 109 _journal_page_last 117 _publ_section_title ; SiS2-isostrukturelle Anionen (SiP2^2-^),(GeAs2^2-^) und (SnAs2^2-^) in Alkaliverbindungen _cod_database_code 1008522 ; _database_code_amcsd 0016415 _chemical_formula_sum 'Cs2 Si P2' _cell_length_a 14.127 _cell_length_b 7.462 _cell_length_c 6.196 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 653.156 _exptl_crystal_density_diffrn 3.619 _symmetry_space_group_name_H-M 'I b a m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' 'x,-y,1/2+z' '1/2+x,1/2-y,+z' '-x,y,1/2-z' '1/2-x,1/2+y,-z' '-x,y,1/2+z' '1/2-x,1/2+y,+z' 'x,-y,1/2-z' '1/2+x,1/2-y,-z' 'x,y,-z' '1/2+x,1/2+y,1/2-z' '-x,-y,z' '1/2-x,1/2-y,1/2+z' '-x,-y,-z' '1/2-x,1/2-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Cs1 0.35110 0.33640 0.00000 Si1 0.50000 0.00000 0.25000 P1 0.08730 0.34800 0.00000 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 Cs1 0.02770 0.02810 0.02710 0.00760 0.00000 0.00000 Si1 0.01840 0.01380 0.01230 0.00000 0.00000 0.00000 P1 0.02050 0.01740 0.01940 0.00750 0.00000 0.00000