#------------------------------------------------------------------------------
#$Date: 2016-02-13 21:28:24 +0200 (Sat, 13 Feb 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/1/52/11/1521197.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_1521197
loop_
_publ_author_name
'Ichikawa, M.'
'Gustafsson, T.'
'Tsuchida, T.'
'Olovsson, I.'
_publ_section_title
;
 Powder neutron-diffraction profile analysis of zero-dimensional H-bonded
 crystal H Cr O2
;
_journal_name_full               'Journal of Physics and Chemistry of Solids'
_journal_page_first              1875
_journal_page_last               1880
_journal_volume                  60
_journal_year                    1999
_chemical_formula_sum            'Cr H O2'
_chemical_name_systematic        'H Cr O2'
_space_group_IT_number           166
_symmetry_space_group_name_Hall  '-R 3 2"'
_symmetry_space_group_name_H-M   'R -3 m :H'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            3
_cell_length_a                   2.9763
_cell_length_b                   2.9763
_cell_length_c                   13.3503
_cell_volume                     102.418
_citation_journal_id_ASTM        JPCSAW
_cod_data_source_file            Ichikawa_JPCSAW_1999_220.cif
_cod_data_source_block           H1Cr1O2
_cod_original_cell_volume        102.4177
_cod_original_formula_sum        'H1 Cr1 O2'
_cod_database_code               1521197
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x-y,z
-x+y,-x,z
y,x,-z
-x,-x+y,-z
x-y,-y,-z
-x,-y,-z
y,-x+y,-z
x-y,x,-z
-y,-x,z
x,x-y,z
-x+y,y,z
x+2/3,y+1/3,z+1/3
-y+2/3,x-y+1/3,z+1/3
-x+y+2/3,-x+1/3,z+1/3
y+2/3,x+1/3,-z+1/3
-x+2/3,-x+y+1/3,-z+1/3
x-y+2/3,-y+1/3,-z+1/3
-x+2/3,-y+1/3,-z+1/3
y+2/3,-x+y+1/3,-z+1/3
x-y+2/3,x+1/3,-z+1/3
-y+2/3,-x+1/3,z+1/3
x+2/3,x-y+1/3,z+1/3
-x+y+2/3,y+1/3,z+1/3
x+1/3,y+2/3,z+2/3
-y+1/3,x-y+2/3,z+2/3
-x+y+1/3,-x+2/3,z+2/3
y+1/3,x+2/3,-z+2/3
-x+1/3,-x+y+2/3,-z+2/3
x-y+1/3,-y+2/3,-z+2/3
-x+1/3,-y+2/3,-z+2/3
y+1/3,-x+y+2/3,-z+2/3
x-y+1/3,x+2/3,-z+2/3
-y+1/3,-x+2/3,z+2/3
x+1/3,x-y+2/3,z+2/3
-x+y+1/3,y+2/3,z+2/3
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
Cr1 Cr+3 0 0 0 1 0.0
H1 H+1 0 0 0.495 0.5 0.0
O1 O-2 0 0 0.40762 1 0.0
