#------------------------------------------------------------------------------ #$Date: 2009-11-18 16:56:34 +0200 (Wed, 18 Nov 2009) $ #$Revision: 858 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1001715.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_1001715 _chemical_name_systematic ; Sodium molybdenum tungsten oxide phosphate (0.75/1.17/0.83/3/2) ; _chemical_formula_structural 'Na0.75 (Mo1.17 W0.83 O3) (P O4)2' _chemical_formula_sum 'Mo1.17 Na0.75 O11 P2 W0.83' _[local]_cod_chemical_formula_sum_orig 'Mo1.17 Na.75 O11 P2 W.83' _publ_section_title ; A mixed-valent molybdenotungsten monophosphate with a tunnel structure : Nax (Mo, W)2 O3 (P O4)2 ; loop_ _publ_author_name 'Leclaire, A' 'Borel, M M' 'Chardon, J' 'Raveau, B' _journal_name_full 'Journal of Solid State Chemistry' _journal_coden_ASTM JSSCBI _journal_volume 120 _journal_year 1995 _journal_page_first 353 _journal_page_last 357 _cell_length_a 7.200(1) _cell_length_b 6.369(1) _cell_length_c 9.123(1) _cell_angle_alpha 90 _cell_angle_beta 106.29(1) _cell_angle_gamma 90 _cell_volume 401.6 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'P 1 21/m 1' _symmetry_Int_Tables_number 11 _symmetry_cell_setting monoclinic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,1/2+y,-z' '-x,-y,-z' 'x,1/2-y,z' loop_ _atom_type_symbol _atom_type_oxidation_number W6+ 6.000 Mo6+ 6.000 Mo5+ 5.000 P5+ 5.000 Na1+ 1.000 O2- -2.000 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 W1 W6+ 2 e 0.1099(1) 0.25 0.20000(9) 0.58 0 d Mo1 Mo6+ 2 e 0.1099(1) 0.25 0.20000(9) 0.42 0 d W2 W6+ 2 e 0.3115(1) 0.25 0.6345(1) 0.25 0 d Mo2 Mo5+ 2 e 0.3115(1) 0.25 0.6345(1) 0.75 0 d P1 P5+ 2 e 0.4117(5) 0.75 0.6106(4) 1. 0 d P2 P5+ 2 e 0.0167(5) 0.75 0.1738(4) 1. 0 d Na1 Na1+ 4 f 0.481(5) 0.594(5) 0.959(4) 0.1875 0 d Na2 Na1+ 4 f 0.391(5) 0.496(5) 0.018(4) 0.1875 0 d O1 O2- 2 e 0.864(1) 0.25 0.128(1) 1. 0 d O2 O2- 2 e 0.132(1) 0.25 0.394(1) 1. 0 d O3 O2- 4 f 0.149(1) 0.556(1) 0.184(1) 1. 0 d O4 O2- 2 e 0.144(1) 0.25 -0.026(1) 1. 0 d O5 O2- 2 e 0.419(1) 0.25 0.247(1) 1. 0 d O6 O2- 2 e 0.454(2) 0.25 0.816(1) 1. 0 d O7 O2- 2 e 0.067(1) 0.25 0.690(1) 1. 0 d O8 O2- 4 f 0.283(1) 0.557(1) 0.607(1) 1. 0 d O9 O2- 2 e 0.523(1) 0.25 0.535(1) 1. 0 d _refine_ls_R_factor_all 0.046