The structure described by Hg3AsO4Cl crystallizes in the cubic P2_13 space group. Hg(1) is bonded in a 2-coordinate geometry to two equivalent O(1) and one Cl(1) atom. As(1) is bonded in a tetrahedral geometry to one O(2) and three equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Hg(1) and one As(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one As(1) atom. Cl(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Hg(1) atoms. is represented by the CIF file [CIF]
data_Hg3AsClO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.645
_cell_length_b   8.645
_cell_length_c   8.645
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   646.198
_cell_formula_units_Z   4
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Hg  Hg0  1  0.551  0.898  0.854  1.0
  Hg  Hg1  1  0.602  0.146  0.051  1.0
  Hg  Hg2  1  0.898  0.854  0.551  1.0
  Hg  Hg3  1  0.146  0.051  0.602  1.0
  Hg  Hg4  1  0.102  0.354  0.949  1.0
  Hg  Hg5  1  0.051  0.602  0.146  1.0
  Hg  Hg6  1  0.354  0.949  0.102  1.0
  Hg  Hg7  1  0.949  0.102  0.354  1.0
  Hg  Hg8  1  0.854  0.551  0.898  1.0
  Hg  Hg9  1  0.646  0.449  0.398  1.0
  Hg  Hg10  1  0.449  0.398  0.646  1.0
  Hg  Hg11  1  0.398  0.646  0.449  1.0
  As  As12  1  0.020  0.480  0.520  1.0
  As  As13  1  0.520  0.020  0.480  1.0
  As  As14  1  0.980  0.980  0.980  1.0
  As  As15  1  0.480  0.520  0.020  1.0
  Cl  Cl16  1  0.227  0.227  0.227  1.0
  Cl  Cl17  1  0.273  0.773  0.727  1.0
  Cl  Cl18  1  0.727  0.273  0.773  1.0
  Cl  Cl19  1  0.773  0.727  0.273  1.0
  O  O20  1  0.400  0.899  0.372  1.0
  O  O21  1  0.900  0.601  0.628  1.0
  O  O22  1  0.600  0.399  0.128  1.0
  O  O23  1  0.601  0.628  0.900  1.0
  O  O24  1  0.128  0.600  0.399  1.0
  O  O25  1  0.628  0.900  0.601  1.0
  O  O26  1  0.899  0.372  0.400  1.0
  O  O27  1  0.372  0.400  0.899  1.0
  O  O28  1  0.399  0.128  0.600  1.0
  O  O29  1  0.100  0.101  0.872  1.0
  O  O30  1  0.872  0.100  0.101  1.0
  O  O31  1  0.134  0.366  0.634  1.0
  O  O32  1  0.366  0.634  0.134  1.0
  O  O33  1  0.634  0.134  0.366  1.0
  O  O34  1  0.866  0.866  0.866  1.0
  O  O35  1  0.101  0.872  0.100  1.0
[/CIF]
.
The structure described by Hg3AsO4Cl crystallizes in the cubic P2_13 space group. Hg(1) is bonded in a 2-coordinate geometry to two equivalent O(1) and one Cl(1) atom. As(1) is bonded in a tetrahedral geometry to one O(2) and three equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Hg(1) and one As(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one As(1) atom. Cl(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Hg(1) atoms. is represented by the CIF file [CIF]
data_Hg3AsClO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.645
_cell_length_b   8.645
_cell_length_c   8.645
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   646.198
_cell_formula_units_Z   4
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Hg  Hg0  1  0.551  0.898  0.854  1.0
  Hg  Hg1  1  0.602  0.146  0.051  1.0
  Hg  Hg2  1  0.898  0.854  0.551  1.0
  Hg  Hg3  1  0.146  0.051  0.602  1.0
  Hg  Hg4  1  0.102  0.354  0.949  1.0
  Hg  Hg5  1  0.051  0.602  0.146  1.0
  Hg  Hg6  1  0.354  0.949  0.102  1.0
  Hg  Hg7  1  0.949  0.102  0.354  1.0
  Hg  Hg8  1  0.854  0.551  0.898  1.0
  Hg  Hg9  1  0.646  0.449  0.398  1.0
  Hg  Hg10  1  0.449  0.398  0.646  1.0
  Hg  Hg11  1  0.398  0.646  0.449  1.0
  As  As12  1  0.020  0.480  0.520  1.0
  As  As13  1  0.520  0.020  0.480  1.0
  As  As14  1  0.980  0.980  0.980  1.0
  As  As15  1  0.480  0.520  0.020  1.0
  Cl  Cl16  1  0.227  0.227  0.227  1.0
  Cl  Cl17  1  0.273  0.773  0.727  1.0
  Cl  Cl18  1  0.727  0.273  0.773  1.0
  Cl  Cl19  1  0.773  0.727  0.273  1.0
  O  O20  1  0.400  0.899  0.372  1.0
  O  O21  1  0.900  0.601  0.628  1.0
  O  O22  1  0.600  0.399  0.128  1.0
  O  O23  1  0.601  0.628  0.900  1.0
  O  O24  1  0.128  0.600  0.399  1.0
  O  O25  1  0.628  0.900  0.601  1.0
  O  O26  1  0.899  0.372  0.400  1.0
  O  O27  1  0.372  0.400  0.899  1.0
  O  O28  1  0.399  0.128  0.600  1.0
  O  O29  1  0.100  0.101  0.872  1.0
  O  O30  1  0.872  0.100  0.101  1.0
  O  O31  1  0.134  0.366  0.634  1.0
  O  O32  1  0.366  0.634  0.134  1.0
  O  O33  1  0.634  0.134  0.366  1.0
  O  O34  1  0.866  0.866  0.866  1.0
  O  O35  1  0.101  0.872  0.100  1.0
[/CIF]
.