The structure described by Hg7(P2Br3)2 crystallizes in the monoclinic P2_1/c space group. There are four inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a linear geometry to two equivalent P(1) atoms. In the second Hg site, Hg(2) is bonded in a 3-coordinate geometry to one P(1), one P(2), and one Br(2) atom. In the third Hg site, Hg(3) is bonded in a 4-coordinate geometry to two equivalent P(2), one Br(2), and one Br(3) atom. In the fourth Hg site, Hg(4) is bonded in a rectangular see-saw-like geometry to one P(1), one Br(1), one Br(2), and one Br(3) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one Hg(1), one Hg(2), one Hg(4), and one P(2) atom to form corner-sharing PHg3P tetrahedra. In the second P site, P(2) is bonded to one Hg(2), two equivalent Hg(3), and one P(1) atom to form corner-sharing PHg3P tetrahedra. There are three inequivalent Br sites. In the first Br site, Br(1) is bonded in a single-bond geometry to one Hg(4) atom. In the second Br site, Br(2) is bonded in a 3-coordinate geometry to one Hg(2), one Hg(3), and one Hg(4) atom. In the third Br site, Br(3) is bonded in a water-like geometry to one Hg(3) and one Hg(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Hg7(P2Br3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   20.288
_cell_length_b   6.191
_cell_length_c   7.740
_cell_angle_alpha   76.146
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   943.806
_cell_formula_units_Z   2
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  0.000  0.000  0.000  1.0
  Hg  Hg1  1  0.500  0.000  0.500  1.0
  Hg  Hg2  1  0.863  0.492  0.921  1.0
  Hg  Hg3  1  0.363  0.508  0.579  1.0
  Hg  Hg4  1  0.137  0.508  0.079  1.0
  Hg  Hg5  1  0.637  0.492  0.421  1.0
  Hg  Hg6  1  0.768  0.910  0.188  1.0
  Hg  Hg7  1  0.268  0.090  0.312  1.0
  Hg  Hg8  1  0.232  0.090  0.812  1.0
  Hg  Hg9  1  0.732  0.910  0.688  1.0
  Hg  Hg10  1  0.912  0.217  0.509  1.0
  Hg  Hg11  1  0.412  0.783  0.991  1.0
  Hg  Hg12  1  0.088  0.783  0.491  1.0
  Hg  Hg13  1  0.588  0.217  0.009  1.0
  P  P14  1  0.897  0.142  0.836  1.0
  P  P15  1  0.397  0.858  0.664  1.0
  P  P16  1  0.103  0.858  0.164  1.0
  P  P17  1  0.603  0.142  0.336  1.0
  P  P18  1  0.822  0.877  0.910  1.0
  P  P19  1  0.322  0.123  0.590  1.0
  P  P20  1  0.178  0.123  0.090  1.0
  P  P21  1  0.678  0.877  0.410  1.0
  Br  Br22  1  0.980  0.399  0.222  1.0
  Br  Br23  1  0.480  0.601  0.278  1.0
  Br  Br24  1  0.020  0.601  0.778  1.0
  Br  Br25  1  0.520  0.399  0.722  1.0
  Br  Br26  1  0.788  0.362  0.294  1.0
  Br  Br27  1  0.288  0.638  0.206  1.0
  Br  Br28  1  0.212  0.638  0.706  1.0
  Br  Br29  1  0.712  0.362  0.794  1.0
  Br  Br30  1  0.888  0.814  0.418  1.0
  Br  Br31  1  0.388  0.186  0.082  1.0
  Br  Br32  1  0.112  0.186  0.582  1.0
  Br  Br33  1  0.612  0.814  0.918  1.0
[/CIF]
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The structure described by Hg7(P2Br3)2 crystallizes in the monoclinic P2_1/c space group. There are four inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a linear geometry to two equivalent P(1) atoms. In the second Hg site, Hg(2) is bonded in a 3-coordinate geometry to one P(1), one P(2), and one Br(2) atom. In the third Hg site, Hg(3) is bonded in a 4-coordinate geometry to two equivalent P(2), one Br(2), and one Br(3) atom. In the fourth Hg site, Hg(4) is bonded in a rectangular see-saw-like geometry to one P(1), one Br(1), one Br(2), and one Br(3) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one Hg(1), one Hg(2), one Hg(4), and one P(2) atom to form corner-sharing PHg3P tetrahedra. In the second P site, P(2) is bonded to one Hg(2), two equivalent Hg(3), and one P(1) atom to form corner-sharing PHg3P tetrahedra. There are three inequivalent Br sites. In the first Br site, Br(1) is bonded in a single-bond geometry to one Hg(4) atom. In the second Br site, Br(2) is bonded in a 3-coordinate geometry to one Hg(2), one Hg(3), and one Hg(4) atom. In the third Br site, Br(3) is bonded in a water-like geometry to one Hg(3) and one Hg(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Hg7(P2Br3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   20.288
_cell_length_b   6.191
_cell_length_c   7.740
_cell_angle_alpha   76.146
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   943.806
_cell_formula_units_Z   2
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  0.000  0.000  0.000  1.0
  Hg  Hg1  1  0.500  0.000  0.500  1.0
  Hg  Hg2  1  0.863  0.492  0.921  1.0
  Hg  Hg3  1  0.363  0.508  0.579  1.0
  Hg  Hg4  1  0.137  0.508  0.079  1.0
  Hg  Hg5  1  0.637  0.492  0.421  1.0
  Hg  Hg6  1  0.768  0.910  0.188  1.0
  Hg  Hg7  1  0.268  0.090  0.312  1.0
  Hg  Hg8  1  0.232  0.090  0.812  1.0
  Hg  Hg9  1  0.732  0.910  0.688  1.0
  Hg  Hg10  1  0.912  0.217  0.509  1.0
  Hg  Hg11  1  0.412  0.783  0.991  1.0
  Hg  Hg12  1  0.088  0.783  0.491  1.0
  Hg  Hg13  1  0.588  0.217  0.009  1.0
  P  P14  1  0.897  0.142  0.836  1.0
  P  P15  1  0.397  0.858  0.664  1.0
  P  P16  1  0.103  0.858  0.164  1.0
  P  P17  1  0.603  0.142  0.336  1.0
  P  P18  1  0.822  0.877  0.910  1.0
  P  P19  1  0.322  0.123  0.590  1.0
  P  P20  1  0.178  0.123  0.090  1.0
  P  P21  1  0.678  0.877  0.410  1.0
  Br  Br22  1  0.980  0.399  0.222  1.0
  Br  Br23  1  0.480  0.601  0.278  1.0
  Br  Br24  1  0.020  0.601  0.778  1.0
  Br  Br25  1  0.520  0.399  0.722  1.0
  Br  Br26  1  0.788  0.362  0.294  1.0
  Br  Br27  1  0.288  0.638  0.206  1.0
  Br  Br28  1  0.212  0.638  0.706  1.0
  Br  Br29  1  0.712  0.362  0.794  1.0
  Br  Br30  1  0.888  0.814  0.418  1.0
  Br  Br31  1  0.388  0.186  0.082  1.0
  Br  Br32  1  0.112  0.186  0.582  1.0
  Br  Br33  1  0.612  0.814  0.918  1.0
[/CIF]
.