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#$Date: 2024-05-02 13:48:35 +0300 (Thu, 02 May 2024) $
#$Revision: 291455 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/00/79/9007986.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided the American Mineralogist Crystal Structure Database,
# http://rruff.geo.arizona.edu/AMS/amcsd.php
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_9007986
loop_
_publ_author_name
'Deng, B.'
'Ibers, J. A.'
_publ_section_title
;
 Dicerium disilicate, Ce2[Si2O7]
;
_journal_name_full               'Acta Crystallographica, Section E'
_journal_page_first              i76
_journal_page_last               i78
_journal_paper_doi               10.1107/S1600536805011049
_journal_volume                  61
_journal_year                    2005
_chemical_formula_sum            'Ce2 O7 Si2'
_chemical_name_mineral           Percleveite-(Ce)
_space_group_IT_number           76
_symmetry_space_group_name_Hall  'P 4w'
_symmetry_space_group_name_H-M   'P 41'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   6.7964
_cell_length_b                   6.7964
_cell_length_c                   24.7282
_cell_formula_units_Z            8
_cell_volume                     1142.222
_database_code_amcsd             0010444
_exptl_crystal_density_diffrn    5.215
_cod_original_formula_sum        'Ce2 Si2 O7'
_cod_database_code               9007986
loop_
_space_group_symop_operation_xyz
x,y,z
-y,x,1/4+z
-x,-y,1/2+z
y,-x,3/4+z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Ce1 0.11721 0.23463 0.12562 0.00974
Ce2 0.16750 0.51956 0.36782 0.00966
Ce3 0.33539 0.08110 0.26563 0.00948
Ce4 0.69879 0.23761 0.01578 0.01020
Si1 0.23320 0.15050 0.00002 0.00850
Si2 0.29430 0.00530 0.39499 0.00890
Si3 0.37840 0.25980 0.49333 0.00860
Si4 0.59450 0.30350 0.15184 0.00810
O1 0.04040 0.15330 0.21830 0.01180
O2 0.03970 0.45610 0.59850 0.01270
O3 0.05530 0.28390 0.02470 0.00920
O4 0.12120 0.56620 0.19100 0.01040
O5 0.13300 0.15020 0.36750 0.01130
O6 0.18650 0.20840 0.67230 0.01090
O7 0.23690 0.44070 0.47360 0.01180
O8 0.24310 0.12540 0.53430 0.01070
O9 0.32760 0.42920 0.27560 0.00890
O10 0.38260 0.10880 0.05070 0.01240
O11 0.42860 0.13890 0.17110 0.01090
O12 0.48050 0.48480 0.12480 0.01250
O13 0.71590 0.37080 0.20800 0.01190
O14 0.74870 0.18450 0.11320 0.01060
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0010444
