#------------------------------------------------------------------------------ #$Date: 2013-05-06 00:33:07 +0300 (Mon, 06 May 2013) $ #$Revision: 85286 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/04/1000477.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_1000477 loop_ _publ_author_name 'Mercier, N' 'Leblanc, M' _publ_section_title ; Crystal growth and structures of rare earth fluorocarbonates: II. Structures of zhonghuacerite Ba2 Ce (C O3)3 F. Correlations between huanghoite, cebaite and zhonghuacerite type structures ; _journal_coden_ASTM EJSCE5 _journal_name_full ; European Journal of Solid State Inorganic Chemistry ; _journal_page_first 207 _journal_page_last 216 _journal_volume 30 _journal_year 1993 _chemical_compound_source 'synthetic 993 K, 200 MPa for 24 H' _chemical_formula_structural 'Ba2 Ce (C O3)3 F' _chemical_formula_sum 'Ba2 C3 Ce F O9' _[local]_cod_chemical_formula_sum_orig 'Ba2 Ce F O9' _chemical_name_mineral 'Zhonghuacerite (Ce)' _chemical_name_systematic 'Dibarium cerium tricarbonate fluoride' _symmetry_cell_setting monoclinic _symmetry_Int_Tables_number 11 _symmetry_space_group_name_H-M 'P 1 21/m 1' _cell_angle_alpha 90 _cell_angle_beta 106.45(2) _cell_angle_gamma 90 _cell_formula_units_Z 2 _cell_length_a 13.365(3) _cell_length_b 5.097(1) _cell_length_c 6.638(1) _cell_volume 433.7 _refine_ls_R_factor_all 0.019 _cod_database_code 1000477 loop_ _symmetry_equiv_pos_as_xyz x,y,z -x,1/2+y,-z -x,-y,-z x,1/2-y,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 Ba1 Ba2+ 2 e 0.0751(1) 0.25 0.2903(1) 1. 0 d Ba2 Ba2+ 2 e 0.4166(1) 0.25 0.6906(1) 1. 0 d Ce2 Ce3+ 2 e 0.7613(1) 0.25 -0.0119(1) 1. 0 d F1 F1- 2 e 0.9277(2) 0.25 0.9108(5) 1. 0 d C1 C4+ 2 e 0.7267(3) 0.25 0.5124(7) 1. 0 d C2 C4+ 2 e 0.4278(3) 0.25 0.1735(7) 1. 0 d C3 C4+ 2 e 0.1276(3) 0.25 0.7960(7) 1. 0 d O1 O2- 2 e 0.1836(3) 0.25 -0.0086(5) 1. 0 d O2 O2- 2 e 0.7010(3) 0.25 0.3109(6) 1. 0 d O3 O2- 2 e 0.4907(3) 0.25 0.3569(6) 1. 0 d O4 O2- 4 f 0.3981(2) 0.0312(5) 0.0760(4) 1. 0 d O5 O2- 4 f 0.2631(2) 0.9668(5) 0.3845(4) 1. 0 d O6 O2- 4 f 0.8959(2) -0.0294(5) 0.2976(4) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Ba2+ 2.000 Ce3+ 3.000 F1- -1.000 C4+ 4.000 O2- -2.000