The crystal structure described by MgGdTl crystallizes in the hexagonal P-62m space group. Mg(1) is bonded in a 4-coordinate geometry to two equivalent Tl(1) and two equivalent Tl(2) atoms. Gd(1) is bonded in a 5-coordinate geometry to one Tl(2) and four equivalent Tl(1) atoms. There are two inequivalent Tl sites. In the first Tl site, Tl(2) is bonded in a 9-coordinate geometry to six equivalent Mg(1) and three equivalent Gd(1) atoms. In the second Tl site, Tl(1) is bonded in a 9-coordinate geometry to three equivalent Mg(1) and six equivalent Gd(1) atoms. is represented by the CIF card [CIF]
data_GdMgTl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.573
_cell_length_b   7.566
_cell_length_c   4.673
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.968
_symmetry_Int_Tables_number   1
_cell_volume   231.948
_cell_formula_units_Z   3
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
  Gd  Gd0  1  0.571  0.571  0.000  1.0
  Gd  Gd1  1  0.429  0.000  0.000  1.0
  Gd  Gd2  1  0.000  0.429  0.000  1.0
  Mg  Mg3  1  0.243  0.243  0.500  1.0
  Mg  Mg4  1  0.757  1.000  0.500  1.0
  Mg  Mg5  1  1.000  0.757  0.500  1.0
  Tl  Tl6  1  0.667  0.333  0.500  1.0
  Tl  Tl7  1  0.333  0.667  0.500  1.0
  Tl  Tl8  1  1.000  1.000  0.000  1.0
[/CIF]
.
The crystal structure described by MgGdTl crystallizes in the hexagonal P-62m space group. Mg(1) is bonded in a 4-coordinate geometry to two equivalent Tl(1) and two equivalent Tl(2) atoms. Gd(1) is bonded in a 5-coordinate geometry to one Tl(2) and four equivalent Tl(1) atoms. There are two inequivalent Tl sites. In the first Tl site, Tl(2) is bonded in a 9-coordinate geometry to six equivalent Mg(1) and three equivalent Gd(1) atoms. In the second Tl site, Tl(1) is bonded in a 9-coordinate geometry to three equivalent Mg(1) and six equivalent Gd(1) atoms. is represented by the CIF card [CIF]
data_GdMgTl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.573
_cell_length_b   7.566
_cell_length_c   4.673
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.968
_symmetry_Int_Tables_number   1
_cell_volume   231.948
_cell_formula_units_Z   3
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
  Gd  Gd0  1  0.571  0.571  0.000  1.0
  Gd  Gd1  1  0.429  0.000  0.000  1.0
  Gd  Gd2  1  0.000  0.429  0.000  1.0
  Mg  Mg3  1  0.243  0.243  0.500  1.0
  Mg  Mg4  1  0.757  1.000  0.500  1.0
  Mg  Mg5  1  1.000  0.757  0.500  1.0
  Tl  Tl6  1  0.667  0.333  0.500  1.0
  Tl  Tl7  1  0.333  0.667  0.500  1.0
  Tl  Tl8  1  1.000  1.000  0.000  1.0
[/CIF]
.