data_global _amcsd_formula_title 'Ca O4 V2' loop_ _publ_author_name 'Bertaut F' 'Blum P' 'Magnano G' _journal_name_full 'Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences' _journal_volume 241 _journal_year 1955 _journal_page_first 757 _journal_page_last 759 _publ_section_title ; Structure des vanadite, chromite et ferrite monocalciques. _cod_database_code 1008146 ; _database_code_amcsd 0016086 _chemical_formula_sum 'V2 Ca O4' _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 295.197 _exptl_crystal_density_diffrn 4.634 _symmetry_space_group_name_H-M 'P b n m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,y,1/2-z' '-x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' '1/2-x,1/2+y,z' '1/2+x,1/2-y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z V1 0.10500 0.07200 0.25000 V2 -0.10500 -0.42800 0.25000 Ca1 0.34600 0.24100 0.25000 O1 -0.14500 -0.20900 0.25000 O2 0.00000 0.38300 0.25000 O3 0.22500 0.47000 0.25000 O4 -0.41300 -0.43700 0.25000