#------------------------------------------------------------------------------ #$Date: 2015-01-27 21:58:39 +0200 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/01/10/1011026.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_1011026 loop_ _publ_author_name 'Ewing, F J' _publ_section_title 'The Crystal Structure of Lepidocrocite' _journal_coden_ASTM JCPSA6 _journal_name_full 'Journal of Chemical Physics' _journal_page_first 420 _journal_page_last 424 _journal_paper_doi 10.1063/1.1749692 _journal_volume 3 _journal_year 1935 _chemical_compound_source 'from Eiserfeld, Westerwald, Germany' _chemical_formula_structural 'Fe O (O H)' _chemical_formula_sum 'Fe H O2' _chemical_name_mineral Lepidocrocite _chemical_name_systematic 'Iron(III) oxide hydroxide' _space_group_IT_number 63 _symmetry_cell_setting orthorhombic _symmetry_Int_Tables_number 63 _symmetry_space_group_name_Hall '-A 2 2a' _symmetry_space_group_name_H-M 'A m a m' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 3.87 _cell_length_b 12.51 _cell_length_c 3.06 _cell_volume 148.1 _exptl_crystal_density_meas 4.07 _[local]_cod_chemical_formula_sum_orig 'H Fe O2' _cod_database_code 1011026 loop_ _symmetry_equiv_pos_as_xyz x,y,z -x,-y,z 1/2-x,y,z 1/2+x,-y,z -x,-y,-z x,y,-z 1/2+x,-y,-z 1/2-x,y,-z x,1/2+y,1/2+z -x,1/2-y,1/2+z 1/2-x,1/2+y,1/2+z 1/2+x,1/2-y,1/2+z -x,1/2-y,1/2-z x,1/2+y,1/2-z 1/2+x,1/2-y,1/2-z 1/2-x,1/2+y,1/2-z loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_calc_flag Fe1 Fe3+ 4 c 0.25 -0.322(1) 0. 1. 0 d O1 O2- 4 c 0.25 0.282(5) 0. 1. 0 d O2 O2- 4 c 0.25 0.075(5) 0. 1. 1 d H1 H1+ 4 c -1. -1. -1. 1. 0 dum loop_ _atom_type_symbol _atom_type_oxidation_number Fe3+ 3.000 O2- -2.000 H1+ 1.000