#------------------------------------------------------------------------------ #$Date: 2015-01-27 21:58:39 +0200 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/01/1000153.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_1000153 loop_ _publ_author_name 'Le Bail, A' 'Laval, J-P' _publ_section_title ; Synthesis and crystal structure of $-alpha-(Ba2 Zr F8) and Pb2 Zr F8 determined ab initio from synchrotron and neutron powder diffraction data ; _journal_coden_ASTM EJSCE5 _journal_name_full ; European Journal of Solid State Inorganic Chemistry ; _journal_page_first 357 _journal_page_last 372 _journal_paper_doi 10.1016/S0992-4361(98)80432-3 _journal_volume 35 _journal_year 1998 _chemical_formula_structural 'Ba2 Zr F8' _chemical_formula_sum 'Ba2 F8 Zr' _chemical_name_systematic 'Dibarium zirconium fluoride - $-alpha' _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 9.7472(2) _cell_length_b 5.6173(1) _cell_length_c 11.8995(3) _cell_volume 651.5 _refine_ls_R_factor_all 0.02 _cod_database_code 1000153 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 Ba1 Ba2+ 4 c 0.8613(2) 0.25 0.9407(1) 1. 0 d Ba2 Ba2+ 4 c 0.4454(2) 0.25 0.1603(1) 1. 0 d Zr1 Zr4+ 4 c 0.2430(2) 0.25 0.8595(2) 1. 0 d F1 F1- 8 d 0.0966(7) 0.5100(12) 0.8623(7) 1. 0 d F2 F1- 8 d 0.1394(7) 0.9811(13) 0.4655(5) 1. 0 d F3 F1- 8 d 0.3423(4) 0.4894(13) 0.7543(7) 1. 0 d F4 F1- 4 c 0.1495(12) 0.25 0.0304(8) 1. 0 d F5 F1- 4 c 0.1313(12) 0.25 0.6911(8) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Ba2+ 2.000 Zr4+ 4.000 F1- -1.000