data_global
_amcsd_formula_title 'SrSi2O5'
loop_
_publ_author_name
'Kojitani H'
'Kido M'
'Akaogi M'
_journal_name_full 'Physics and Chemistry of Minerals'
_journal_volume 32 
_journal_year 2005
_journal_page_first 290
_journal_page_last 294
_publ_section_title
;
 Rietveld analysis of a new high-pressure strontium silicate SrSi2O5
 BaGe2O5 III-type structure
;
_database_code_amcsd 0008965
_chemical_formula_sum 'Sr Si2 O5'
_cell_length_a 5.2389
_cell_length_b 9.2803
_cell_length_c 13.4406
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 653.463
_exptl_crystal_density_diffrn      4.549
_symmetry_space_group_name_H-M 'C m c a'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,1/2-y,1/2+z'
  '1/2+x,-y,1/2+z'
  '-x,1/2+y,1/2-z'
  '1/2-x,+y,1/2-z'
  '-x,y,z'
  '1/2-x,1/2+y,z'
  'x,-y,-z'
  '1/2+x,1/2-y,-z'
  'x,1/2+y,1/2-z'
  '1/2+x,+y,1/2-z'
  '-x,1/2-y,1/2+z'
  '1/2-x,-y,1/2+z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Sr   0.00000   0.34040   0.08270   0.01710
Si1   0.00000   0.67530   0.18210   0.01026
Si2   0.00000   0.00580   0.13770   0.00380
O1   0.00000   0.51480   0.24800   0.01938
O2   0.00000   0.83200   0.10290 ?
O3   0.25000   0.24270   0.25000   0.00836
O4   0.25170   0.08960   0.09650   0.00532