data_global _chemical_name_mineral 'Megawite' loop_ _publ_author_name 'Vegas A' 'Vallet-Regi M' 'Gonzalez-Calbet J M' 'Alario-Franco M A' _journal_name_full 'Acta Crystallographica, Section B' _journal_volume 42 _journal_year 1986 _journal_page_first 167 _journal_page_last 172 _publ_section_title ; The ASnO3 (A = Ca, Sr) perovskites ; _database_code_amcsd 0018625 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Ca Sn O3' _cell_length_a 5.532 _cell_length_b 5.681 _cell_length_c 7.906 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 248.464 _exptl_crystal_density_diffrn 5.528 _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 _atom_site_U_iso_or_equiv Ca -0.01310 0.05090 0.25000 0.00750 Sn 0.00000 0.50000 0.00000 0.00350 O1 0.09940 0.46150 0.25000 0.00700 O2 0.69920 0.29810 0.05140 0.00700