data_global _chemical_name_mineral 'Erythrosiderite' loop_ _publ_author_name 'Schultz A J' 'Carlin R L' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 51 _journal_year 1995 _journal_page_first 43 _journal_page_last 47 _publ_section_title ; Single-crystal pulsed neutron diffraction structure of the antiferromagnet K2[FeCl5(H2O)] with and without applied pressure Sample: P = .1 MPa Sample: T = 15 K ; _database_code_amcsd 0010299 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'K2 Fe Cl5 O H2' _cell_length_a 13.452 _cell_length_b 9.631 _cell_length_c 7.003 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 907.282 _exptl_crystal_density_diffrn 2.411 _symmetry_space_group_name_H-M 'P n m a' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-z' '1/2+x,y,1/2-z' '1/2-x,-y,1/2+z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z K 0.35380 0.00230 0.85400 Fe 0.11410 0.25000 0.80610 Cl1 0.21860 0.25000 0.07850 Cl2 0.25250 0.25000 0.60430 Cl3 0.00620 0.25000 0.53260 Cl4 0.10447 0.00376 0.81410 O -0.00880 0.25000 0.98390 H -0.03500 0.33140 0.04410 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 K 0.00890 0.00790 0.00970 0.00040 -0.00140 0.00030 Fe 0.00620 0.00430 0.00610 0.00000 0.00100 0.00000 Cl1 0.00700 0.00870 0.00670 0.00000 -0.00140 0.00000 Cl2 0.00530 0.00690 0.00680 0.00000 0.00100 0.00000 Cl3 0.00680 0.00770 0.00820 0.00000 -0.00140 0.00000 Cl4 0.00770 0.00530 0.00950 0.00010 0.00200 0.00040 O 0.01020 0.00710 0.01320 0.00000 0.00670 0.00000 H 0.03500 0.01700 0.03300 0.00300 0.00700 -0.00760