#------------------------------------------------------------------------------
#$Date: 2024-05-16 09:36:09 +0300 (Thu, 16 May 2024) $
#$Revision: 291877 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/01/19/9011958.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_9011958
loop_
_publ_author_name
'Hawthorne, F. C.'
_publ_section_title
;
 The crystal structure of tancoite
;
_journal_name_full
'Tschermaks Mineralogische und Petrographische Mitteilungen'
_journal_page_first              121
_journal_page_last               135
_journal_volume                  31
_journal_year                    1983
_chemical_formula_sum            'Al H2 Li Na2 O9 P2'
_chemical_name_mineral           Tancoite
_space_group_IT_number           54
_symmetry_space_group_name_Hall  '-P 2bc 2b'
_symmetry_space_group_name_H-M   'P b c b'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   6.948
_cell_length_b                   14.089
_cell_length_c                   14.065
_cell_formula_units_Z            8
_cell_volume                     1376.828
_database_code_amcsd             0015695
_exptl_crystal_density_diffrn    2.777
_cod_original_formula_sum        'H2 Na2 Li Al P2 O9'
_cod_database_code               9011958
loop_
_space_group_symop_operation_xyz
x,y,z
-x,1/2+y,z
x,1/2-y,-z
x,1/2+y,1/2-z
-x,1/2-y,1/2+z
x,-y,1/2+z
-x,y,1/2-z
-x,-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
H2 0.58700 0.70400 0.13200 0.01267
Na1 0.50000 0.00000 0.00000 0.02786
Na2 0.50000 0.51430 0.25000 0.02786
Na3 0.02470 0.25000 0.00000 0.01646
Na4 0.00000 0.24790 0.25000 0.02660
Li 0.26140 0.87160 0.12580 0.03673
Al1 0.00000 0.00000 0.00000 0.00418
Al2 0.00000 0.50220 0.25000 0.00709
P1 0.27550 0.36750 0.12710 0.00823
P2 0.26330 0.64160 0.12000 0.00621
O1 0.18520 0.09450 0.28630 0.00887
O2 0.17760 0.40330 0.22020 0.00760
O3 0.18290 0.59140 0.03400 0.01520
O4 0.16430 0.59680 0.54200 0.00887
O5 0.26410 0.25870 0.12930 0.01621
O6 0.19680 0.74550 0.12000 0.01494
O7 0.48090 0.40500 0.12700 0.01798
O8 0.48280 0.63300 0.12110 0.01545
O9 0.11400 0.00310 0.12170 0.00861
H1 0.18400 0.06500 0.14700 0.01267
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0015695
