#------------------------------------------------------------------------------
#$Date: 2024-04-18 17:56:43 +0200 (jue 18 de abr de 2024) $
#$Revision: 291269 $
#$URL: svn://www.crystallography.net/cod/cif/9/00/00/9000044.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_9000044
loop_
_publ_author_name
'Forman, S. A.'
'Peacock, M. A.'
_publ_section_title
;
 Crystal structure of rickardite, Cu4-xTe2
;
_journal_name_full               'American Mineralogist'
_journal_page_first              441
_journal_page_last               451
_journal_volume                  34
_journal_year                    1949
_chemical_formula_sum            'Cu1.4 Te'
_chemical_name_mineral           Rickardite
_space_group_IT_number           129
_symmetry_space_group_name_Hall  'P 4ab 2ab -1ab'
_symmetry_space_group_name_H-M   'P 4/n m m :1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   3.98
_cell_length_b                   3.98
_cell_length_c                   6.12
_cell_formula_units_Z            2
_cell_volume                     96.943
_database_code_amcsd             0000047
_exptl_crystal_density_diffrn    7.419
_cod_original_sg_symbol_H-M      'P 4/n m m'
_cod_database_code               9000044
loop_
_space_group_symop_operation_xyz
x,y,z
1/2-y,1/2-x,z
y,x,-z
y,-x,-z
1/2-y,1/2+x,z
x,-y,z
1/2-x,1/2+y,-z
1/2+x,1/2+y,-z
-x,-y,z
1/2+y,1/2+x,z
-y,-x,-z
-y,x,-z
1/2+y,1/2-x,z
-x,y,z
1/2+x,1/2-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_occupancy
Cu1 0.00000 0.00000 0.00000 1.00000
Cu2 0.00000 0.50000 0.27000 0.40000
Te 0.00000 0.50000 0.71500 1.00000
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0000047
