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#$Date: 2024-04-18 18:56:43 +0300 (Thu, 18 Apr 2024) $
#$Revision: 291269 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/00/23/9002346.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_9002346
loop_
_publ_author_name
'Jacobsen, S. D.'
'Smyth, J. R.'
'Swope, R. J.'
'Sheldon, R. I.'
_publ_section_title
;
 Two proton positions in the very strong hydrogen bond of serandite,
 NaMn2[Si3O8(OH)]
 Sample: X-ray
;
_journal_name_full               'American Mineralogist'
_journal_page_first              745
_journal_page_last               752
_journal_volume                  85
_journal_year                    2000
_chemical_formula_sum            'H Mn1.933 Na O9 Si3'
_chemical_name_mineral           Serandite
_space_group_IT_number           2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_cell_angle_alpha                90.492
_cell_angle_beta                 94.085
_cell_angle_gamma                102.775
_cell_length_a                   7.7185
_cell_length_b                   6.9064
_cell_length_c                   6.7624
_cell_formula_units_Z            2
_cell_volume                     350.557
_database_code_amcsd             0002430
_exptl_crystal_density_diffrn    3.396
_cod_original_formula_sum        'Na Mn1.933 Si3 H O9'
_cod_database_code               9002346
loop_
_space_group_symop_operation_xyz
x,y,z
-x,-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Na 0.55614 0.25385 0.35237 1.00000 ?
Mn1 0.85219 0.59405 0.13637 0.94400 ?
Mn2 0.84956 0.08396 0.13308 0.98900 ?
Si1 0.21589 0.40239 0.34113 1.00000 ?
Si2 0.20581 0.95249 0.35090 1.00000 ?
Si3 0.45398 0.73904 0.14312 1.00000 ?
H 0.17900 0.62100 0.53300 1.00000 0.06400
O1 0.66327 0.79612 0.11507 1.00000 ?
O2 0.32289 0.70965 0.94371 1.00000 ?
O3 0.18070 0.49542 0.55276 1.00000 ?
O4 0.15867 0.84596 0.55620 1.00000 ?
O5 0.06121 0.39059 0.16778 1.00000 ?
O6 0.05273 0.89324 0.17232 1.00000 ?
O7 0.40696 0.53359 0.27366 1.00000 ?
O8 0.39617 0.90570 0.28860 1.00000 ?
O9 0.26035 0.19025 0.39346 1.00000 ?
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0002430
