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#$Date: 2016-02-13 20:28:24 +0100 (Sat 13 de Feb de 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/1/53/20/1532042.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_1532042
loop_
_publ_author_name
'Parasyuk, O.V.'
'Gulay, L.D.'
'Piskach, L.V.'
'Romanyuk, Ya.E.'
'Olekseyuk, I.D.'
_publ_section_title
;
 The (Ag2 Se) - (Hg Se) -(Ge Se2) system and crystal structures of the
 compounds
;
_journal_name_full               'Journal of Alloys Compd.'
_journal_page_first              135
_journal_page_last               144
_journal_volume                  351
_journal_year                    2003
_chemical_formula_sum            'Ge Hg2 Se4'
_chemical_name_systematic        'Hg2 (Ge Se4)'
_space_group_IT_number           82
_symmetry_space_group_name_Hall  'I -4'
_symmetry_space_group_name_H-M   'I -4'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   5.6786
_cell_length_b                   5.6786
_cell_length_c                   11.2579
_cell_volume                     363.028
_citation_journal_id_ASTM        JALCEU
_cod_data_source_file            Parasyuk_JALCEU_2003_1329.cif
_cod_data_source_block           Ge1Hg2Se4
_cod_original_cell_volume        363.0278
_cod_original_formula_sum        'Ge1 Hg2 Se4'
_cod_database_code               1532042
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
y,-x,-z
-x,-y,z
-y,x,-z
x+1/2,y+1/2,z+1/2
y+1/2,-x+1/2,-z+1/2
-x+1/2,-y+1/2,z+1/2
-y+1/2,x+1/2,-z+1/2
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
Hg1 Hg+2 0 0.5 0.75 1 0.0
Ge1 Ge+4 0 0.5 0.25 1 0.0
Se1 Se-2 0.1917 0.763 0.1186 1 0.0
Hg2 Hg+2 0 0 0.5 1 0.0
