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#$Date: 2014-07-12 11:06:43 +0300 (Sat, 12 Jul 2014) $
#$Revision: 120115 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/00/99/9009961.cif $
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#
# 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_9009961
loop_
_publ_author_name
'Pudovkina, Z. V.'
'Chernitsova, N. M.'
'Pyatenko, Y. A.'
_publ_section_title
;
 Refinement of the crystalline structure of prosopite, CaAl2F4(OH)4
;
_journal_name_full               'Journal of Structural Chemistry'
_journal_page_first              345
_journal_page_last               347
_journal_volume                  14
_journal_year                    1973
_chemical_formula_sum            'Al2 Ca F4 H4 O4'
_chemical_name_mineral           Prosopite
_space_group_IT_number           15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 95.0
_cell_angle_gamma                90
_cell_length_a                   6.76
_cell_length_b                   11.12
_cell_length_c                   7.32
_cell_volume                     548.159
_exptl_crystal_density_diffrn    2.885
_[local]_cod_chemical_formula_sum_orig 'Ca Al2 F4 (O4 H4)'
_cod_database_code               9009961
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
1/2+x,1/2+y,z
x,-y,1/2+z
1/2+x,1/2-y,1/2+z
-x,y,1/2-z
1/2-x,1/2+y,1/2-z
-x,-y,-z
1/2-x,1/2-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Ca 0.00000 0.46060 0.25000 0.00849
Al1 0.25000 0.25000 0.00000 0.00722
Al2 0.00000 0.14070 0.25000 0.00697
F1 0.07610 0.38100 0.96250 0.01115
F2 0.18180 0.02440 0.28190 0.01191
O-H1 0.19980 0.26320 0.24390 0.00747
O-H2 0.02310 0.15340 0.99710 0.00811
_journal_paper_doi 10.1007/BF00739481