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#$Date: 2015-07-10 13:35:07 +0300 (Fri, 10 Jul 2015) $
#$Revision: 141849 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/52/16/1521636.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_1521636
loop_
_publ_author_name
'Mueller-Bunz, H.'
'Schleid, T.'
_publ_section_title
;
 Ueber die Oxidsilicate M2 O (Si O4) der schweren Lanthanoide (M = Dy -
 Lu) im A-Typ
;
_journal_name_full
'Zeitschrift fuer Anorganische und Allgemeine Chemie'
_journal_page_first              613
_journal_page_last               618
_journal_volume                  625
_journal_year                    1999
_chemical_formula_sum            'Er2 O5 Si'
_chemical_name_systematic        'Er2 O (Si O4)'
_space_group_IT_number           14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 105.952
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.9964
_cell_length_b                   6.8328
_cell_length_c                   6.6503
_cell_volume                     393.056
_citation_journal_id_ASTM        ZAACAB
_cod_data_source_file            Mueller-Bunz_ZAACAB_1999_890.cif
_cod_data_source_block           Er2O5Si1
_cod_original_cell_volume        393.0561
_cod_chemical_formula_sum_orig   'Er2 O5 Si1'
_cod_database_code               1521636
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,y+1/2,-z+1/2
-x,-y,-z
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
Er2 Er+3 0.52634 0.62536 0.23251 1 0.0
Er1 Er+3 0.12419 0.13855 0.43854 1 0.0
O1 O-2 0.2087 0.4285 0.6619 1 0.0
O2 O-2 0.1261 0.4499 0.2743 1 0.0
O4 O-2 0.1055 0.7829 0.4792 1 0.0
O5 O-2 0.386 0.3811 0.0616 1 0.0
Si1 Si+4 0.201 0.589 0.4735 1 0.0
O3 O-2 0.3857 0.6356 0.5073 1 0.0