data_2310235
_publ_section_title
;
 The crystal strutures of Na Hg2, Na Hg and Na3 Hg2
;
_journal_name_full               'Acta Crystallographica (1,1948-23,1967)'
_journal_page_first              277
_journal_page_last               282
_journal_volume                  7
_journal_year                    1954
_chemical_formula_sum            'Hg Na'
_chemical_name_systematic        'Hg Na'
_space_group_IT_number           63
_symmetry_space_group_name_Hall  '-C 2c 2'
_symmetry_space_group_name_H-M   'C m c m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   7.19
_cell_length_b                   10.79
_cell_length_c                   5.21
_cell_volume                     404.192
_citation_journal_id_ASTM        ACCRA9
_cod_data_source_file            Nielson_ACCRA9_1954_643.cif
_cod_data_source_block           Hg1Na1
_cod_original_cell_volume        404.1923
_cod_chemical_formula_sum_orig   'Hg1 Na1'
_cod_database_code               2310235
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,-y,z+1/2
x,-y,-z
-x,y,-z+1/2
-x,-y,-z
x,y,-z-1/2
-x,y,z
x,-y,z-1/2
x+1/2,y+1/2,z
-x+1/2,-y+1/2,z+1/2
x+1/2,-y+1/2,-z
-x+1/2,y+1/2,-z+1/2
-x+1/2,-y+1/2,-z
x+1/2,y+1/2,-z-1/2
-x+1/2,y+1/2,z
x+1/2,-y+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
Na1 Na 0 0.368 0.25 1 0.0
Hg1 Hg 0.212 0.088 0.25 1 0.0
Na2 Na 0 0.814 0.25 1 0.0
