#------------------------------------------------------------------------------ #$Date: 2009-11-16 03:43:51 +0200 (Mon, 16 Nov 2009) $ #$Revision: 853 $ #$URL: file:///home/coder/svn-repositories/cod/cif/9/9000603.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_9000603 _space_group_IT_number 141 _symmetry_space_group_name_Hall '-I 4bd 2' _symmetry_space_group_name_H-M 'I 41/a m d :2' _[local]_cod_cif_authors_sg_H-M 'I 41/a m d' loop_ _publ_author_name 'O'Keeffe M' 'Bovin J O' _publ_section_title ; The crystal structure of paramelaconite, Cu4O3 ; _journal_name_full 'American Mineralogist' _journal_page_first 180 _journal_page_last 185 _journal_volume 63 _journal_year 1978 _chemical_formula_sum 'Cu4 O3' _chemical_name_mineral Paramelaconite _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_length_a 5.837 _cell_length_b 5.837 _cell_length_c 9.932 _cell_volume 338.389 loop_ _symmetry_equiv_pos_as_xyz x,y,z 1/2+x,1/2+y,1/2+z 1/4-y,3/4-x,1/4+z 3/4-y,1/4-x,3/4+z 1/4+y,3/4+x,1/4-z 3/4+y,1/4+x,3/4-z 1/4+y,3/4-x,1/4-z 3/4+y,1/4-x,3/4-z 1/4-y,3/4+x,1/4+z 3/4-y,1/4+x,3/4+z 1/2+x,-y,1/2+z +x,1/2-y,+z 1/2-x,y,1/2-z -x,1/2+y,-z 1/2+x,y,1/2-z +x,1/2+y,-z 1/2-x,-y,1/2+z -x,1/2-y,+z 1/4+y,1/4+x,3/4+z 3/4+y,3/4+x,1/4+z 1/4-y,1/4-x,3/4-z 3/4-y,3/4-x,1/4-z 1/4-y,1/4+x,3/4-z 3/4-y,3/4+x,1/4-z 1/4+y,1/4-x,3/4+z 3/4+y,3/4-x,1/4+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 _atom_site_U_iso_or_equiv Cu1 0.00000 0.00000 0.00000 ? Cu2 0.00000 0.00000 0.50000 ? O1 0.00000 0.25000 0.11730 0.01013 O2 0.00000 0.25000 0.37500 0.00887 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 Cu1 0.01139 0.01605 0.01049 0.00000 0.00000 -0.00675 Cu2 0.00949 0.00656 0.00150 0.00000 0.00000 0.00029