data_Cr2O3
_chemical_name_systematic 'Chromium oxide'
_chemical_formula_structural 'Cr2 O3'
loop_
_publ_author_name
'Newnham, R.E.'
'de Haan, Y.M.'
_cell_length_a 4.95898
_cell_length_b 4.95898
_cell_length_c 13.5959
_cell_angle_alpha 90.0
_cell_angle_beta 90.0
_cell_angle_gamma 120.0
_cell_formula_units_Z 6
_symmetry_space_group_name_H-M 'R -3 c'
_symmetry_Int_Tables_number 167
loop_
_atom_type_symbol
_atom_type_oxidation_number
Cr3+ 3
O2- -2
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
Cr1 Cr3+ 12 c 0     0 0.3475 1.0
O1  O2-  18 e 0.306 0 0.25   1.0


