# generated using pymatgen data_Ba2AlTlCr2O7 _symmetry_space_group_name_H-M 'P 1' _cell_length_a 3.83182900 _cell_length_b 3.83182900 _cell_length_c 13.28359900 _cell_angle_alpha 90.00000000 _cell_angle_beta 90.00000000 _cell_angle_gamma 90.00000000 _symmetry_Int_Tables_number 1 _chemical_formula_structural Ba2AlTlCr2O7 _chemical_formula_sum 'Ba2 Al1 Tl1 Cr2 O7' _cell_volume 195.04193489 _cell_formula_units_Z 1 loop_ _symmetry_equiv_pos_site_id _symmetry_equiv_pos_as_xyz 1 'x, y, z' loop_ _atom_site_type_symbol _atom_site_label _atom_site_symmetry_multiplicity _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Ba Ba0 1 0.00000000 0.00000000 0.19845600 1.0 Ba Ba1 1 0.00000000 0.00000000 0.80154400 1.0 Al Al2 1 0.00000000 0.00000000 0.50000000 1.0 Tl Tl3 1 0.50000000 0.50000000 0.00000000 1.0 Cr Cr4 1 0.50000000 0.50000000 0.37111600 1.0 Cr Cr5 1 0.50000000 0.50000000 0.62888400 1.0 O O6 1 0.50000000 0.50000000 0.22492600 1.0 O O7 1 0.50000000 0.00000000 0.40646400 1.0 O O8 1 0.00000000 0.50000000 0.40646400 1.0 O O9 1 0.00000000 0.50000000 0.59353600 1.0 O O10 1 0.00000000 0.00000000 0.00000000 1.0 O O11 1 0.50000000 0.00000000 0.59353600 1.0 O O12 1 0.50000000 0.50000000 0.77507400 1.0