data_global
_amcsd_formula_title 'Cl3 H4 Hg N'
loop_
_publ_author_name
'Harmsen E'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 100 
_journal_year 1938
_journal_page_first 208
_journal_page_last 211
_publ_section_title
;
 The crystal structure of N H4 Hg Cl3
 _cod_database_code 1010013
;
_database_code_amcsd 0016946
_chemical_formula_sum 'Hg Cl3 N'
_cell_length_a 4.19
_cell_length_b 4.19
_cell_length_c 7.94
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 139.395
_exptl_crystal_density_diffrn      3.823
_symmetry_space_group_name_H-M 'P -4'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'y,-x,-z'
  '-x,-y,z'
  '-y,x,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Hg1   0.00000   0.00000   0.00000
Cl1   0.50000   0.50000   0.00000
Cl2   0.00000   0.00000   0.29440
N1   0.50000   0.50000   0.50000