#------------------------------------------------------------------------------ #$Date: 2016-02-18 17:37:37 +0200 (Thu, 18 Feb 2016) $ #$Revision: 176729 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/70/1007068.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_1007068 loop_ _publ_author_name 'Eymond, S' 'Durif, A' 'Martin, C' _publ_section_title ; Structure cristalline du monoarseniate de nickelbaryum: Ba Ni~2~ (As O~4~)~2~ ; _journal_coden_ASTM CHDCAQ _journal_name_full ; Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, Serie C, Sciences Chimiques (1966-) ; _journal_page_first 1694 _journal_page_last 1696 _journal_volume 268 _journal_year 1969 _chemical_formula_structural 'Ba Ni2 (As O4)2' _chemical_formula_sum 'As2 Ba Ni2 O8' _chemical_name_systematic 'Barium dinickel arsenate' _space_group_IT_number 148 _symmetry_cell_setting trigonal _symmetry_space_group_name_Hall '-R 3' _symmetry_space_group_name_H-M 'R -3 :H' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_formula_units_Z 3 _cell_length_a 4.945(5) _cell_length_b 4.945(5) _cell_length_c 23.61(2) _cell_volume 500.0 _refine_ls_R_factor_all 0.106 _cod_original_sg_symbol_H-M 'R -3 H' _cod_database_code 1007068 loop_ _symmetry_equiv_pos_as_xyz x,y,z -y,x-y,z y-x,-x,z -x,-y,-z y,y-x,-z x-y,x,-z 1/3+x,2/3+y,2/3+z 2/3+x,1/3+y,1/3+z 1/3-y,2/3+x-y,2/3+z 2/3-y,1/3+x-y,1/3+z 1/3-x+y,2/3-x,2/3+z 2/3-x+y,1/3-x,1/3+z 1/3-x,2/3-y,2/3-z 2/3-x,1/3-y,1/3-z 1/3+y,2/3-x+y,2/3-z 2/3+y,1/3-x+y,1/3-z 1/3+x-y,2/3+x,2/3-z 2/3+x-y,1/3+x,1/3-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+ 3 a 0. 0. 0. 1. 0 d As1 As5+ 6 c 0. 0. 0.427 1. 0 d Ni1 Ni2+ 6 c 0. 0. 0.167 1. 0 d O1 O2- 6 c 0. 0. 0.355 1. 0 d O2 O2- 18 f 0.328 0.328 0.113 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Ba2+ 2.000 As5+ 5.000 Ni2+ 2.000 O2- -2.000