data_2310180
_publ_section_title
;
 The crystal structures of K Hg and K Hg2
;
_journal_name_full               'Acta Crystallographica (1,1948-23,1967)'
_journal_page_first              705
_journal_page_last               710
_journal_volume                  8
_journal_year                    1955
_chemical_formula_sum            'Hg2 K'
_chemical_name_systematic        'Hg2 K'
_space_group_IT_number           74
_symmetry_space_group_name_Hall  '-I 2b 2'
_symmetry_space_group_name_H-M   'I m m a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.1
_cell_length_b                   5.16
_cell_length_c                   8.77
_cell_volume                     366.551
_citation_journal_id_ASTM        ACCRA9
_cod_data_source_file            Duwell_ACCRA9_1955_623.cif
_cod_data_source_block           Hg2K1
_cod_original_cell_volume        366.5509
_cod_chemical_formula_sum_orig   'Hg2 K1'
_cod_database_code               2310180
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y+1/2,z
x,-y,-z
-x,y+1/2,-z
-x,-y,-z
x,y-1/2,-z
-x,y,z
x,-y-1/2,z
x+1/2,y+1/2,z+1/2
-x+1/2,-y+1,z+1/2
x+1/2,-y+1/2,-z+1/2
-x+1/2,y+1,-z+1/2
-x+1/2,-y+1/2,-z+1/2
x+1/2,y,-z+1/2
-x+1/2,y+1/2,z+1/2
x+1/2,-y,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 0.19 0.25 0.087 1 0.0
K1 K 0 0.25 0.703 1 0.0
