#------------------------------------------------------------------------------ #$Date: 2008-01-14 00:15:36 +0200 (Mon, 14 Jan 2008) $ #$Revision: 14 $ #$URL: file:///home/coder/svn-repositories/cod/cif/1/1008146.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_1008146 _chemical_name_systematic 'Calcium divanadium(III) oxide' _chemical_formula_structural 'Ca V2 O4' _chemical_formula_sum 'Ca O4 V2' _publ_section_title ; Structure des vanadite, chromite et ferrite monocalciques. ; loop_ _publ_author_name 'Bertaut, F' 'Blum, P' 'Magnano, G' _journal_name_full ; Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences (1884 - 1965) ; _journal_coden_ASTM COREAF _journal_volume 241 _journal_year 1955 _journal_page_first 757 _journal_page_last 759 _cell_length_a 10.66 _cell_length_b 9.2 _cell_length_c 3.01 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 295.2 _cell_formula_units_Z 4 _symmetry_space_group_name_H-M 'P b n m' _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,-y,1/2+z' '1/2+x,1/2-y,-z' '-x,-y,-z' '1/2+x,1/2-y,1/2+z' 'x,y,1/2-z' '1/2-x,1/2+y,z' loop_ _atom_type_symbol _atom_type_oxidation_number V3+ 3.000 Ca2+ 2.000 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 V1 V3+ 4 c 0.105 0.072 0.25 1. 0 d V2 V3+ 4 c -0.105 -0.428 0.25 1. 0 d Ca1 Ca2+ 4 c 0.346 0.241 0.25 1. 0 d O1 O2- 4 c -0.145 -0.209 0.25 1. 0 d O2 O2- 4 c 0. 0.383 0.25 1. 0 d O3 O2- 4 c 0.225 0.47 0.25 1. 0 d O4 O2- 4 c -0.413 -0.437 0.25 1. 0 d