data_9010366
_publ_section_title
;
 High-pressure structure and bonding in CaIrO3: the structure model of MgSiO3
 post-perovskite investigated with time-of-flight neutron powder diffraction
 Note: Ca(z) and O(y) changed to match normal structure
 Sample: P = 9.68 GPa
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1912
_journal_page_last               1918
_journal_paper_doi               10.2138/am.2007.2585
_journal_volume                  92
_journal_year                    2007
_chemical_formula_structural     CaIrO3
_chemical_formula_sum            'Ca Ir O3'
_space_group_IT_number           63
_symmetry_space_group_name_Hall  '-C 2c 2'
_symmetry_space_group_name_H-M   'C m c m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   3.1015
_cell_length_b                   9.6551
_cell_length_c                   7.2141
_cell_volume                     216.028
_diffrn_ambient_pressure         9.68e+06
_exptl_crystal_density_diffrn    8.618
_cod_database_code               9010366
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
1/2+x,1/2+y,z
x,-y,1/2+z
1/2+x,1/2-y,1/2+z
-x,y,1/2-z
1/2-x,1/2+y,1/2-z
-x,y,z
1/2-x,1/2+y,z
x,-y,-z
1/2+x,1/2-y,-z
x,y,1/2-z
1/2+x,1/2+y,1/2-z
-x,-y,1/2+z
1/2-x,1/2-y,1/2+z
-x,-y,-z
1/2-x,1/2-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 0.00000 0.24760 0.25000 0.00930
Ir 0.00000 0.00000 0.00000 0.01120
O1 0.00000 0.92423 0.25000 0.01260
O2 0.00000 0.63035 0.05110 0.00860
