#------------------------------------------------------------------------------ #$Date: 2008-01-26 14:05:32 +0100 (Sat, 26 Jan 2008) $ #$Revision: 19 $ #$URL: svn://www.crystallography.net/cod/cif/1/1001748.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_1001748 _chemical_name_systematic ; Strontium divanadium(III) oxide bis(phosphate(V)) ; _chemical_formula_structural 'Sr V2 O (P O4)2' _chemical_formula_sum 'O9 P2 Sr V2' _publ_section_title ; The V(III) monophosphate series A V2 O (P O4)2 with A = Cd, Ca, Sr: structure and magnetism ; loop_ _publ_author_name 'Boudin, S' 'Grandin, A' 'Labbe, Ph' 'Provost, J' 'Raveau, B' _journal_name_full 'Journal of Solid State Chemistry' _journal_coden_ASTM JSSCBI _journal_volume 127 _journal_year 1996 _journal_page_first 325 _journal_page_last 330 _cell_length_a 14.220(1) _cell_length_b 6.5138(6) _cell_length_c 7.5166(8) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 696.2 _cell_formula_units_Z 4 _symmetry_space_group_name_H-M 'P n m a' _symmetry_Int_Tables_number 62 _symmetry_cell_setting orthorhombic 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_type_symbol _atom_type_oxidation_number Sr2+ 2.000 V3+ 3.000 P5+ 5.000 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 Sr1 Sr2+ 4 c 0.21944(8) 0.25 0.1229(2) 1. 0 d V1 V3+ 4 c 0.3821(1) 0.75 0.1532(3) 1. 0 d V2 V3+ 4 a 0. 0.5 0. 1. 0 d P1 P5+ 4 c 0.1892(2) 0.75 0.1119(4) 1. 0 d P2 P5+ 4 c 0.4389(2) 0.25 0.1450(4) 1. 0 d O1 O2- 8 d 0.3744(4) 0.437(1) 0.1372(8) 1. 0 d O2 O2- 4 c 0.2648(6) 0.75 -0.032(1) 1. 0 d O3 O2- 4 c 0.4864(6) 0.75 -0.005(1) 1. 0 d O4 O2- 4 c 0.2496(6) 0.75 0.281(1) 1. 0 d O5 O2- 4 c 0.4452(5) 0.75 0.376(1) 1. 0 d O6 O2- 4 c -0.0111(6) 0.25 0.171(1) 1. 0 d O7 O2- 8 d 0.1266(4) 0.5607(9) 0.1026(8) 1. 0 d _refine_ls_R_factor_all 0.039