data_global _amcsd_formula_title 'CaTi2O4' loop_ _publ_author_name 'Yamanaka T' 'Uchida A' 'Nakamoto Y' _journal_name_full 'American Mineralogist' _journal_volume 93 _journal_year 2008 _journal_page_first 1874 _journal_page_last 1881 _publ_section_title ; Structural transition of post-spinel phases CaMn2O4, CaFe2O4, and CaTi2O4 under high pressures up to 80 GPa Note: Pressure = 80 GPa ; _database_code_amcsd 0004769 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Ca Ti2 O4' _cell_length_a 9.086 _cell_length_b 9.335 _cell_length_c 8.585 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 728.161 _exptl_crystal_density_diffrn 5.469 _symmetry_space_group_name_H-M 'B b m m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,y,1/2+z' '-x,1/2+y,z' '1/2-x,1/2+y,1/2+z' 'x,1/2-y,-z' '1/2+x,1/2-y,1/2-z' 'x,y,-z' '1/2+x,y,1/2-z' '-x,-y,z' '1/2-x,-y,1/2+z' 'x,1/2-y,z' '1/2+x,1/2-y,1/2+z' '-x,1/2+y,-z' '1/2-x,1/2+y,1/2-z' '-x,-y,-z' '1/2-x,-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ca1 0.38100 0.25000 0.00000 Ca2 0.11800 0.75000 0.16600 Ti1 0.12700 0.06400 0.00000 Ti2 0.37200 0.93500 0.16670 O11 0.50000 0.00000 0.00000 O12 0.00000 0.00000 0.16670 O21 0.05900 0.25000 0.00000 O22 0.44000 0.75000 0.16600 O31 0.23000 -0.10600 0.00000 O32 0.26900 0.39300 0.16670