#------------------------------------------------------------------------------ #$Date: 2016-02-19 16:29:56 +0200 (Fri, 19 Feb 2016) $ #$Revision: 176759 $ #$URL: file:///home/coder/svn-repositories/cod/cif/2/00/27/2002769.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_2002769 loop_ _publ_author_name 'Mueller-Buschbaum, Hk' 'Werner, J-P' _publ_section_title ; Synthese und Kristallstruktur von Pb2 Ln Al3 O8 (Ln= Eu, Gd) ; _journal_name_full ; Zeitschrift fuer Naturforschung, Teil B. Anorganische Chemie, Organische Chemie (42,1987-) ; _journal_page_first 883 _journal_page_last 887 _journal_volume 51 _journal_year 1996 _chemical_formula_structural 'Al3 Eu Pb2 O8' _chemical_formula_sum 'Al3 Eu O8 Pb2' _chemical_name_systematic 'Trialuminium europium dilead octaoxide' _space_group_IT_number 224 _symmetry_cell_setting cubic _symmetry_space_group_name_Hall '-P 4bc 2bc 3' _symmetry_space_group_name_H-M 'P n -3 m :2' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 9.4578(5) _cell_length_b 9.4578(5) _cell_length_c 9.4578(5) _cell_volume 846.0 _refine_ls_R_factor_all 0.0778 _cod_original_sg_symbol_H-M 'P n -3 m Z' _cod_database_code 2002769 loop_ _symmetry_equiv_pos_as_xyz x,y,z x,1/2-y,1/2-z 1/2-x,y,1/2-z 1/2-x,1/2-y,z x,z,y x,1/2-z,1/2-y 1/2-x,z,1/2-y 1/2-x,1/2-z,y y,z,x 1/2-y,1/2-z,x y,1/2-z,1/2-x 1/2-y,z,1/2-x z,y,x 1/2-z,1/2-y,x z,1/2-y,1/2-x 1/2-z,y,1/2-x z,x,y 1/2-z,x,1/2-y 1/2-z,1/2-x,y z,1/2-x,1/2-y y,x,z 1/2-y,x,1/2-z 1/2-y,1/2-x,z y,1/2-x,1/2-z -x,-y,-z -x,1/2+y,1/2+z 1/2+x,-y,1/2+z 1/2+x,1/2+y,-z -x,-z,-y -x,1/2+z,1/2+y 1/2+x,-z,1/2+y 1/2+x,1/2+z,-y -y,-z,-x 1/2+y,1/2+z,-x -y,1/2+z,1/2+x 1/2+y,-z,1/2+x -z,-y,-x 1/2+z,1/2+y,-x -z,1/2+y,1/2+x 1/2+z,-y,1/2+x -z,-x,-y 1/2+z,-x,1/2+y 1/2+z,1/2+x,-y -z,1/2+x,1/2+y -y,-x,-z 1/2+y,-x,1/2+z 1/2+y,1/2+x,-z -y,1/2+x,1/2+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 Pb1 0.01792(5) 0.00038(6) 0.00038(6) 0.01792(5) 0.00038(6) 0.01792(5) Eu1 0.01285(8) -0.00229(10) 0.00229(10) 0.01285(8) 0.00229(10) 0.01285(8) Al1 0.0094(4) -0.0006(6) 0. 0.0094(4) 0. 0.0051(6) O1 0.0169(10) -0.0012(13) -0.0012(13) 0.0169(10) -0.0012(13) 0.0169(10) O2 0.048(2) -0.0068(14) -0.0068(14) 0.020(1) 0.0118(14) 0.020(1) 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 Pb1 Pb2+ 8 e 0.38342(2) 0.38342(2) 0.38342(2) 1. 0 d Eu1 Eu3+ 4 b 0.5 0.5 0. 1. 0 d Al1 Al3+ 12 f 0.25 0.75 0. 1. 0 d O1 O2- 8 e 0.8572(4) 0.8572(4) 0.8572(4) 1. 0 d O2 O2- 24 k 0.2379(6) 0.5938(3) 0.5938(3) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Pb2+ 2.000 Eu3+ 3.000 Al3+ 3.000 O2- -2.000