#------------------------------------------------------------------------------ #$Date: 2015-01-27 21:58:39 +0200 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/88/1008829.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_1008829 loop_ _publ_author_name 'Levy, D' 'Barbier, J' _publ_section_title 'A sanidine feldspar analogue: K Fe Ge3 O8' _journal_coden_ASTM ACSCEE _journal_issue 8 _journal_name_full 'Acta Crystallographica C (39,1983-)' _journal_page_first 1 _journal_page_last 1 _journal_volume 54 _journal_year 1998 _chemical_formula_structural 'K Fe (Ge3 O8)' _chemical_formula_sum 'Fe Ge3 K O8' _chemical_name_systematic 'Potassium iron trigermanate' _space_group_IT_number 12 _symmetry_cell_setting monoclinic _symmetry_Int_Tables_number 12 _symmetry_space_group_name_Hall '-C 2y' _symmetry_space_group_name_H-M 'C 1 2/m 1' _cell_angle_alpha 90 _cell_angle_beta 115.867(1) _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 8.8978(3) _cell_length_b 13.7057(4) _cell_length_c 7.5532(2) _cell_volume 828.8 _refine_ls_R_factor_all 0.053 _cod_database_code 1008829 loop_ _symmetry_equiv_pos_as_xyz x,y,z x,-y,z -x,-y,-z -x,y,-z 1/2+x,1/2+y,z 1/2+x,1/2-y,z 1/2-x,1/2-y,-z 1/2-x,1/2+y,-z loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_22 _atom_site_aniso_U_23 _atom_site_aniso_U_33 Ge1 0.02300(15) -0.00664(10) 0.01084(10) 0.02721(15) -0.00368(9) 0.01810(13) Fe1 0.02300(15) -0.00664(10) 0.01084(10) 0.02721(15) -0.00368(9) 0.01810(13) Ge2 0.02142(14) -0.00114(9) 0.00925(10) 0.02167(13) 0.00040(9) 0.02121(13) Fe2 0.02142(14) -0.00114(9) 0.00925(10) 0.02167(13) 0.00040(9) 0.02121(13) K1 0.0265(4) 0. 0.0100(4) 0.0546(6) 0. 0.0410(5) O1 0.047(2) 0. 0.0211(13) 0.0354(14) 0. 0.0266(13) O2 0.0293(15) 0. 0.0104(14) 0.0266(13) 0. 0.051(2) O3 0.0436(15) -0.0261(14) 0.0310(13) 0.083(2) -0.0153(14) 0.0488(15) O4 0.0326(12) -0.0042(9) 0.0170(11) 0.0344(12) -0.011(1) 0.0570(15) O5 0.0468(14) 0.0098(11) 0.0037(9) 0.0489(14) 0.0001(9) 0.0230(9) 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 Ge1 Ge4+ 8 j 0.00486(4) 0.18228(2) 0.22320(4) 0.684(3) 0 d Fe1 Fe3+ 8 j 0.00486(4) 0.18228(2) 0.22320(4) 0.316(3) 0 d Ge2 Ge4+ 8 j 0.70010(4) 0.11704(2) 0.34405(4) 0.816(3) 0 d Fe2 Fe3+ 8 j 0.70010(4) 0.11704(2) 0.34405(4) 0.184(3) 0 d K1 K1+ 4 i 0.27560(13) 0. 0.1361(2) 1. 0 d O1 O2- 4 g 0. 0.1390(2) 0. 1. 0 d O2 O2- 4 i 0.6111(4) 0. 0.2836(5) 1. 0 d O3 O2- 8 j 0.8144(4) 0.1388(3) 0.2112(5) 1. 0 d O4 O2- 8 j 0.0198(3) 0.3097(2) 0.2588(4) 1. 0 d O5 O2- 8 j 0.1827(4) 0.1231(2) 0.4020(3) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Ge4+ 4.000 Fe3+ 3.000 K1+ 1.000 O2- -2.000