#------------------------------------------------------------------------------ #$Date: 2015-01-27 19:58:39 +0000 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: svn://www.crystallography.net/cod/cif/2/00/27/2002711.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_2002711 loop_ _publ_author_name 'Mueller-Buschbaum, Hk' 'Muenchau, S' _publ_section_title ; Ein Beitrag zur Kristallchemie von Ca Be Gd2 O5 und Ba Be Nd2 O5 ; _journal_name_full 'Journal of Alloys Compd.' _journal_page_first 175 _journal_page_last 178 _journal_paper_doi 10.1016/0925-8388(94)90031-0 _journal_volume 206 _journal_year 1994 _chemical_formula_structural 'Ca Be Gd2 O5' _chemical_formula_sum 'Be Ca Gd2 O5' _chemical_name_systematic 'Calcium beryllium digadolinium oxide' _space_group_IT_number 62 _symmetry_cell_setting orthorhombic _symmetry_Int_Tables_number 62 _symmetry_space_group_name_Hall '-P 2ac 2n' _symmetry_space_group_name_H-M 'P n m a' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 9.3190(29) _cell_length_b 7.0448(18) _cell_length_c 6.3956(14) _cell_volume 419.9 _refine_ls_R_factor_all 0.049 _cod_database_code 2002711 loop_ _symmetry_equiv_pos_as_xyz x,y,z 1/2+x,1/2-y,1/2-z -x,1/2+y,-z 1/2-x,-y,1/2+z -x,-y,-z 1/2-x,1/2+y,1/2+z x,1/2-y,z 1/2+x,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 Gd1 Gd3+ 4 c 0.9764(1) 0.25 0.5973(2) 1. 0 d Gd2 Gd3+ 8 d 0.8268(1) 0.0226(2) 0.0778(2) 0.5 0 d Ca1 Ca2+ 8 d 0.8268(1) 0.0226(2) 0.0778(2) 0.5 0 d Be1 Be2+ 4 c 0.1042(10) 0.25 0.1952(11) 1. 0 d O1 O2- 8 d 0.428(1) 0.943(1) 0.809(1) 1. 0 d O2 O2- 4 c 0.224(1) 0.25 0.668(1) 1. 0 d O3 O2- 4 c 0.279(1) 0.25 0.138(1) 1. 0 d O4 O2- 4 c 0.508(1) 0.25 0.522(1) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Gd3+ 3.000 Ca2+ 2.000 Be2+ 2.000 O2- -2.000