data_1509927
_publ_section_title
;
 Synthesis of two new metallic alkali metal silver selenides, K2 Ag12
 Se7.11 and Rb Ag5 Se3, from supercritical ethylenediamine
;
_journal_name_full               'Journal of Solid State Chemistry'
_journal_page_first              287
_journal_page_last               296
_journal_paper_doi               10.1006/jssc.1999.8130
_journal_volume                  144
_journal_year                    1999
_chemical_formula_sum            'Ag5 Rb Se3'
_chemical_name_systematic        'Rb Ag5 Se3'
_space_group_IT_number           125
_symmetry_space_group_name_Hall  '-P 4a 2b'
_symmetry_space_group_name_H-M   'P 4/n b m :2'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   6.0814
_cell_length_b                   6.0814
_cell_length_c                   11.112
_cell_volume                     410.960
_citation_journal_id_ASTM        JSSCBI
_[local]_cod_data_source_file    silver3-x_220.cif
_[local]_cod_data_source_block   Ag5Rb1Se3
_[local]_cod_chemical_formula_sum_orig 'Ag5 Rb1 Se3'
_cod_original_cell_volume        410.9598
_cod_database_code               1509927
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y+1/2,x,z
-x+1/2,-y+1/2,z
y,-x+1/2,z
x,-y+1/2,-z
y,x,-z
-x+1/2,y,-z
-y+1/2,-x+1/2,-z
-x,-y,-z
y-1/2,-x,-z
x-1/2,y-1/2,-z
-y,x-1/2,-z
-x,y-1/2,z
-y,-x,z
x-1/2,-y,z
y-1/2,x-1/2,z
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Se2 Se-2 0.25 0.25 0.3236 1 0.0
Ag2 Ag+1 -0.4539 0.0461 0.1901 1 0.0
Rb1 Rb+1 0.75 0.25 0.5 1 0.0
Se1 Se-2 0.75 0.25 0 1 0.0
Ag1 Ag+1 0.25 0.25 0 1 0.0
