data_2000656
_publ_section_title
;
 Structure of Sr₂Bi₂O₅ from X-ray and neutron powder diffraction
 data
;
_journal_issue                   8
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1380
_journal_page_last               1382
_journal_paper_doi               10.1107/S0108270192000581
_journal_volume                  48
_journal_year                    1992
_chemical_formula_sum            'Bi2 O5 Sr2'
_chemical_formula_weight         673.20
_symmetry_cell_setting           orthorhombic
_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_formula_units_Z            2
_cell_length_a                   3.8268(2)
_cell_length_b                   14.3142(6)
_cell_length_c                   6.1724(4)
_cell_volume                     338.11(3)
_diffrn_radiation_probe          neutron
_diffrn_radiation_type           neutron
_diffrn_radiation_wavelength     2.57171(7)
_exptl_crystal_density_diffrn    6.6390(10)
_exptl_crystal_F_000             120.26
_[local]_cod_data_source_file    mu0273.cif
_[local]_cod_data_source_block   mu0273a
_cod_original_cell_volume        338.11(2)
_cod_database_code               2000656
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Sr .0 .18970(10) .25
Bi .0 .43780(10) .25
O1 .0 .34050(10) .4882(3)
O2 .0 .9898(4) .25
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
Sr O1 2.6120(10)
Sr O1 2.5420(10)
Sr O2 2.861(6)
Bi O1 2.025(2)
Bi O2 2.053(2)
