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#$Date: 2016-02-14 16:26:36 +0200 (Sun, 14 Feb 2016) $
#$Revision: 176435 $
#$URL: svn://www.crystallography.net/cod/cif/1/50/97/1509719.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_1509719
loop_
_publ_author_name
'Marazza, R.'
'Rossi, D.'
'Ferro, R.'
_publ_section_title
;
 Ternary R M2 X2 alloys of the rare earths with the precious metals and
 silicon (or germanium)
;
_journal_name_full               'Journal of the Less-Common Metals'
_journal_page_first              25
_journal_page_last               27
_journal_paper_doi               10.1016/0022-5088(85)90295-4
_journal_volume                  113
_journal_year                    1985
_chemical_formula_sum            'Ag2 Si2 Yb'
_chemical_name_systematic        'Ag2 Yb Si2'
_space_group_IT_number           139
_symmetry_space_group_name_Hall  '-I 4 2'
_symmetry_space_group_name_H-M   'I 4/m m m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   4.14
_cell_length_b                   4.14
_cell_length_c                   10.89
_cell_volume                     186.650
_citation_journal_id_ASTM        JCOMAH
_cod_data_source_file            silver2-3_194.cif
_cod_data_source_block           Ag2Si2Yb1
_cod_original_cell_volume        186.6502
_cod_original_formula_sum        'Ag2 Si2 Yb1'
_cod_database_code               1509719
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x,z
-x,-y,z
y,-x,z
x,-y,-z
y,x,-z
-x,y,-z
-y,-x,-z
-x,-y,-z
y,-x,-z
x,y,-z
-y,x,-z
-x,y,z
-y,-x,z
x,-y,z
y,x,z
x+1/2,y+1/2,z+1/2
-y+1/2,x+1/2,z+1/2
-x+1/2,-y+1/2,z+1/2
y+1/2,-x+1/2,z+1/2
x+1/2,-y+1/2,-z+1/2
y+1/2,x+1/2,-z+1/2
-x+1/2,y+1/2,-z+1/2
-y+1/2,-x+1/2,-z+1/2
-x+1/2,-y+1/2,-z+1/2
y+1/2,-x+1/2,-z+1/2
x+1/2,y+1/2,-z+1/2
-y+1/2,x+1/2,-z+1/2
-x+1/2,y+1/2,z+1/2
-y+1/2,-x+1/2,z+1/2
x+1/2,-y+1/2,z+1/2
y+1/2,x+1/2,z+1/2
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
Yb1 Yb 0 0 0 1 0.0
Ag1 Ag 0 0.5 0.25 1 0.0
Si1 Si 0 0 0.375 1 0.0
