data_global _chemical_name_mineral 'Maghemite' loop_ _publ_author_name 'Solano E' 'Frontera C' 'Puig T' 'Obradors X' 'Ricart S' 'Ros J' _journal_name_full 'Journal of Applied Crystallography' _journal_volume 47 _journal_year 2014 _journal_page_first 414 _journal_page_last 420 _publ_section_title ; Neutron and X-ray diffraction study of ferrite nanocrystals obtained by microwave-assisted growth. A structural comparison with the thermal synthetic route ; _database_code_amcsd 0020517 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Fe2.645 O3.99' _cell_length_a 8.3364 _cell_length_b 8.3364 _cell_length_c 8.3364 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 579.343 _exptl_crystal_density_diffrn 4.851 _symmetry_space_group_name_H-M 'P 43 3 2' loop_ _space_group_symop_operation_xyz 'x,y,z' '-z,1/2+x,1/2-y' '-y,1/2+z,1/2-x' '-x,1/2+y,1/2-z' '3/4-x,1/4+z,3/4+y' '3/4-z,1/4+y,3/4+x' '3/4-y,1/4+x,3/4+z' '1/4-x,1/4-z,1/4-y' '1/4-z,1/4-y,1/4-x' '1/4-y,1/4-x,1/4-z' '1/2-z,-x,1/2+y' '1/2-y,-z,1/2+x' '1/2-x,-y,1/2+z' '1/2+z,1/2-x,-y' '1/2+y,1/2-z,-x' '1/2+x,1/2-y,-z' '3/4+x,3/4-z,1/4+y' '3/4+z,3/4-y,1/4+x' '3/4+y,3/4-x,1/4+z' '1/4+x,3/4+z,3/4-y' '1/4+z,3/4+y,3/4-x' '1/4+y,3/4+x,3/4-z' 'z,x,y' 'y,z,x' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Fe1 -0.00440 -0.00440 -0.00440 1.00000 Fe2 0.62500 0.62500 0.62500 0.35000 Fe3 0.12500 0.36690 0.88310 0.98000 O1 0.38170 0.38170 0.38170 0.99000 O2 0.38170 0.87360 0.88190 1.00000