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#$Date: 2016-02-13 21:28:24 +0200 (Sat, 13 Feb 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/1/54/20/1542007.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_1542007
loop_
_publ_author_name
'Maksimov, B.A.'
'Ilyukhin, V.V.'
'Kharitonov, Yu.A.'
'Belov, N.V.'
_publ_section_title
;
 Crystal structure of yttrium oxyorthosilicate Y2 O3 Si O2 and Y2 Si O5.
 Dual function of yttrium
;
_journal_name_full               Kristallografiya
_journal_page_first              926
_journal_page_last               933
_journal_volume                  15
_journal_year                    1970
_chemical_formula_sum            'O5 Si Y2'
_chemical_name_systematic        'Y2 (Si O4) O'
_space_group_IT_number           15
_symmetry_space_group_name_Hall  '-I 2ya'
_symmetry_space_group_name_H-M   'I 1 2/a 1'
_cell_angle_alpha                90
_cell_angle_beta                 102.65
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   10.41
_cell_length_b                   6.721
_cell_length_c                   12.49
_cell_volume                     852.658
_citation_journal_id_ASTM        KRISAJ
_cod_data_source_file            Maksimov_KRISAJ_1970_226.cif
_cod_data_source_block           O5Si1Y2
_cod_original_cell_volume        852.6581
_cod_original_sg_symbol_Hall     '-C 2yc (x+z,y,-x)'
_cod_original_formula_sum        'O5 Si1 Y2'
_cod_database_code               1542007
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x+1/2,y,-z
-x,-y,-z
x-1/2,-y,z
x+1/2,y+1/2,z+1/2
-x+1,y+1/2,-z+1/2
-x+1/2,-y+1/2,-z+1/2
x,-y+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
O2 O-2 0.446 -0.002 0.089 1 0.0
O3 O-2 0.468 -0.157 0.298 1 0.0
Si1 Si+4 0.373 -0.093 0.181 1 0.0
O1 O-2 0.3 -0.287 0.118 1 0.0
O5 O-2 0.382 0.398 -0.015 1 0.0
O4 O-2 0.263 0.071 0.203 1 0.0
Y1 Y+3 0.306 0.378 0.141 1 0.0
Y2 Y+3 0.429 -0.257 -0.037 1 0.0
