#------------------------------------------------------------------------------ #$Date: 2008-01-14 00:15:36 +0200 (Mon, 14 Jan 2008) $ #$Revision: 14 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1000079.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_1000079 _chemical_name_systematic 'Potassium dioxovanadium hydrogenphosphate' _chemical_formula_structural 'K (V O2) (H P O4)' _chemical_formula_sum 'H K O6 P V' _publ_section_title ; Crystal structure of A(VO~2~)(HPO~4~)(A=NH~4~^+^,K^+^, Rb^+^) solved from X-ray powder diffraction ; loop_ _publ_author_name 'Amoros, P' 'Beltran-Porter, D' 'Le Bail, A' 'Ferey, G' 'Villeneuve, G' _journal_name_full ; European Journal of Solid State Inorganic Chemistry ; _journal_coden_ASTM EJSCE5 _journal_volume 25 _journal_year 1988 _journal_page_first 599 _journal_page_last 607 _cell_length_a 6.7550(3) _cell_length_b 9.1026(4) _cell_length_c 17.0808(6) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1050.3 _cell_formula_units_Z 8 _symmetry_space_group_name_H-M 'P b c a' _symmetry_Int_Tables_number 61 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '1/2+x,1/2-y,-z' '-x,1/2+y,1/2-z' '1/2-x,-y,1/2+z' '-x,-y,-z' '1/2-x,1/2+y,z' 'x,1/2-y,1/2+z' '1/2+x,y,1/2-z' loop_ _atom_type_symbol _atom_type_oxidation_number K1+ 1.000 V5+ 5.000 P5+ 5.000 O2- -2.000 H1+ 1.000 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 K1 K1+ 8 b 0.2766(3) 0.8124(2) 0.1005(1) 1. 0 d V1 V5+ 8 b 0.0175(3) 0.9483(3) 0.7606(1) 1. 0 d P1 P5+ 8 b 0.8074(4) 0.8876(3) 0.5959(2) 1. 0 d O1 O2- 8 b 0.8803(5) 0.7432(5) 0.5552(3) 1. 0 d O2 O2- 8 b 0.7606(6) 0.0034(6) 0.5289(2) 1. 0 d O3 O2- 8 b 0.1076(7) 0.8657(5) 0.8561(3) 1. 0 d O4 O2- 8 b 0.4824(7) 0.9537(5) 0.8496(2) 1. 0 d O5 O2- 8 b -0.0199(7) 0.8815(4) 0.2246(3) 1. 0 d O6 O2- 8 b 0.2152(7) 0.1054(4) 0.2238(3) 1. 0 d H1 H1+ 8 ? -1. -1. -1. 1. 0 dum _refine_ls_R_factor_all 0.043