#------------------------------------------------------------------------------ #$Date: 2015-01-27 21:58:39 +0200 (Tue, 27 Jan 2015) $ #$Revision: 130149 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/00/18/1001858.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_1001858 loop_ _publ_author_name 'Benmoussa, A' 'Borel, M M' 'Grandin, A' 'Leclaire, A' 'Raveau, B' _publ_section_title ; Structure of mixed-valent titanium silicophosphates, K Ti3 P6 Si2 O25 and Cs Ti3 P6 Si2 O25 ; _journal_coden_ASTM ACSCEE _journal_name_full 'Acta Crystallographica C (39,1983-)' _journal_page_first 936 _journal_page_last 938 _journal_volume 47 _journal_year 1991 _chemical_formula_structural 'Cs Ti3 (Si2 P6 O25)' _chemical_formula_sum 'Cs O25 P6 Si2 Ti3' _chemical_name_systematic ; Caesium titanium disilicohexaphosphate (1/3/1) ; _space_group_IT_number 163 _symmetry_cell_setting trigonal _symmetry_Int_Tables_number 163 _symmetry_space_group_name_Hall '-P 3 2c' _symmetry_space_group_name_H-M 'P -3 1 c' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_formula_units_Z 2 _cell_length_a 8.2145(6) _cell_length_b 8.2145(6) _cell_length_c 17.24899(100) _cell_volume 1008.0 _refine_ls_R_factor_all 0.034 _cod_database_code 1001858 loop_ _symmetry_equiv_pos_as_xyz x,y,z -y,x-y,z y-x,-x,z y,x,1/2+z -x,y-x,1/2+z x-y,-y,1/2+z -x,-y,-z y,y-x,-z x-y,x,-z -y,-x,1/2-z x,x-y,1/2-z y-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 Cs1 Cs1+ 2 c 0.3333 0.6667 0.25 1. 0 d Ti1 Ti4+ 4 f 0.3333 0.6667 0.02293(4) 1. 0 d Ti2 Ti4+ 2 d 0.6667 0.3333 0.25 1. 0 d P1 P5+ 12 i 0.38368(8) 0.3311(1) 0.10965(4) 1. 0 d Si1 Si4+ 4 e 0. 0. 0.09176(8) 1. 0 d O1 O2- 12 i 0.1147(3) 0.5926(3) 0.0906(1) 1. 0 d O2 O2- 12 i 0.8056(3) 0.2473(3) 0.4552(1) 1. 0 d O3 O2- 12 i 0.4789(3) 0.3420(4) 0.1861(1) 1. 0 d O4 O2- 2 b 0. 0. 0. 1. 0 d O5 O2- 12 i 0.0278(3) 0.8322(3) 0.1259(1) 1. 0 d loop_ _atom_type_symbol _atom_type_oxidation_number Cs1+ 1.000 Ti4+ 3.500 P5+ 5.000 Si4+ 4.000 O2- -2.000