data_global
_amcsd_formula_title 'As2 Rb2 Sn'
loop_
_publ_author_name
'Eisenmann B'
'Klein J'
_journal_name_full 'Journal of the Less-Common Metals'
_journal_volume 175 
_journal_year 1991
_journal_page_first 109
_journal_page_last 117
_publ_section_title
;
 SiS2-isostrukturelle Anionen (SiP2^2-^),(GeAs2^2-^) und
 (SnAs2^2-^) in Alkaliverbindungen
 _cod_database_code 1008521
;
_database_code_amcsd 0016414
_chemical_formula_sum 'Rb2 Sn As2'
_cell_length_a 13.974
_cell_length_b 7.454
_cell_length_c 6.942
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 723.094
_exptl_crystal_density_diffrn      4.037
_symmetry_space_group_name_H-M 'I b a m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,-z'
  '-x,y,1/2+z'
  '1/2-x,1/2+y,+z'
  'x,-y,1/2-z'
  '1/2+x,1/2-y,-z'
  'x,y,-z'
  '1/2+x,1/2+y,1/2-z'
  '-x,-y,z'
  '1/2-x,1/2-y,1/2+z'
  '-x,-y,-z'
  '1/2-x,1/2-y,1/2-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Rb1   0.35420   0.34170   0.00000
Sn1   0.50000   0.00000   0.25000
As1   0.10270   0.31890   0.00000
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Rb1 0.02130 0.01830 0.02900 0.00400 0.00000 0.00000
Sn1 0.00590 0.00410 0.00360 0.00000 0.00000 0.00000
As1 0.01280 0.01530 0.00770 0.00940 0.00000 0.00000