The compound described by AgInAl4Te8 crystallizes in the monoclinic C2 space group. Ag(1) is bonded to two equivalent Te(1) and two equivalent Te(3) atoms to form AgTe4 tetrahedra that share corners with two equivalent Al(1)Te4 tetrahedra, corners with two equivalent Al(2)Te4 tetrahedra, and corners with four equivalent Al(3)Te4 tetrahedra. In(1) is bonded to two equivalent Te(2) and two equivalent Te(4) atoms to form InTe4 tetrahedra that share corners with two equivalent Al(1)Te4 tetrahedra, corners with two equivalent Al(2)Te4 tetrahedra, and corners with four equivalent Al(3)Te4 tetrahedra. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded to two equivalent Te(2) and two equivalent Te(3) atoms to form AlTe4 tetrahedra that share corners with two equivalent Ag(1)Te4 tetrahedra, corners with two equivalent In(1)Te4 tetrahedra, and corners with four equivalent Al(3)Te4 tetrahedra. In the second Al site, Al(2) is bonded to two equivalent Te(1) and two equivalent Te(4) atoms to form AlTe4 tetrahedra that share corners with two equivalent Ag(1)Te4 tetrahedra, corners with two equivalent In(1)Te4 tetrahedra, and corners with four equivalent Al(3)Te4 tetrahedra. In the third Al site, Al(3) is bonded to one Te(1), one Te(2), one Te(3), and one Te(4) atom to form AlTe4 tetrahedra that share corners with two equivalent Ag(1)Te4 tetrahedra, corners with two equivalent In(1)Te4 tetrahedra, corners with two equivalent Al(1)Te4 tetrahedra, and corners with two equivalent Al(2)Te4 tetrahedra. There are four inequivalent Te sites. In the first Te site, Te(1) is bonded in a trigonal non-coplanar geometry to one Ag(1), one Al(2), and one Al(3) atom. In the second Te site, Te(2) is bonded in a trigonal non-coplanar geometry to one In(1), one Al(1), and one Al(3) atom. In the third Te site, Te(3) is bonded in a trigonal non-coplanar geometry to one Ag(1), one Al(1), and one Al(3) atom. In the fourth Te site, Te(4) is bonded in a trigonal non-coplanar geometry to one In(1), one Al(2), and one Al(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Al4InAgTe8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.402
_cell_length_b   7.402
_cell_length_c   8.911
_cell_angle_alpha   89.860
_cell_angle_beta   89.860
_cell_angle_gamma   106.489
_symmetry_Int_Tables_number   1
_cell_volume   468.197
_cell_formula_units_Z   1
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
  Al  Al0  1  0.988  0.012  0.500  1.0
  Al  Al1  1  0.510  0.490  0.000  1.0
  Al  Al2  1  0.990  0.489  0.753  1.0
  Al  Al3  1  0.511  0.010  0.247  1.0
  In  In4  1  0.501  0.499  0.500  1.0
  Ag  Ag5  1  1.000  0.000  0.000  1.0
  Te  Te6  1  0.394  0.121  0.994  1.0
  Te  Te7  1  0.905  0.631  0.491  1.0
  Te  Te8  1  0.879  0.606  0.006  1.0
  Te  Te9  1  0.369  0.095  0.509  1.0
  Te  Te10  1  0.876  0.148  0.259  1.0
  Te  Te11  1  0.369  0.644  0.765  1.0
  Te  Te12  1  0.852  0.124  0.741  1.0
  Te  Te13  1  0.356  0.631  0.235  1.0
[/CIF]
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The compound described by AgInAl4Te8 crystallizes in the monoclinic C2 space group. Ag(1) is bonded to two equivalent Te(1) and two equivalent Te(3) atoms to form AgTe4 tetrahedra that share corners with two equivalent Al(1)Te4 tetrahedra, corners with two equivalent Al(2)Te4 tetrahedra, and corners with four equivalent Al(3)Te4 tetrahedra. In(1) is bonded to two equivalent Te(2) and two equivalent Te(4) atoms to form InTe4 tetrahedra that share corners with two equivalent Al(1)Te4 tetrahedra, corners with two equivalent Al(2)Te4 tetrahedra, and corners with four equivalent Al(3)Te4 tetrahedra. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded to two equivalent Te(2) and two equivalent Te(3) atoms to form AlTe4 tetrahedra that share corners with two equivalent Ag(1)Te4 tetrahedra, corners with two equivalent In(1)Te4 tetrahedra, and corners with four equivalent Al(3)Te4 tetrahedra. In the second Al site, Al(2) is bonded to two equivalent Te(1) and two equivalent Te(4) atoms to form AlTe4 tetrahedra that share corners with two equivalent Ag(1)Te4 tetrahedra, corners with two equivalent In(1)Te4 tetrahedra, and corners with four equivalent Al(3)Te4 tetrahedra. In the third Al site, Al(3) is bonded to one Te(1), one Te(2), one Te(3), and one Te(4) atom to form AlTe4 tetrahedra that share corners with two equivalent Ag(1)Te4 tetrahedra, corners with two equivalent In(1)Te4 tetrahedra, corners with two equivalent Al(1)Te4 tetrahedra, and corners with two equivalent Al(2)Te4 tetrahedra. There are four inequivalent Te sites. In the first Te site, Te(1) is bonded in a trigonal non-coplanar geometry to one Ag(1), one Al(2), and one Al(3) atom. In the second Te site, Te(2) is bonded in a trigonal non-coplanar geometry to one In(1), one Al(1), and one Al(3) atom. In the third Te site, Te(3) is bonded in a trigonal non-coplanar geometry to one Ag(1), one Al(1), and one Al(3) atom. In the fourth Te site, Te(4) is bonded in a trigonal non-coplanar geometry to one In(1), one Al(2), and one Al(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Al4InAgTe8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.402
_cell_length_b   7.402
_cell_length_c   8.911
_cell_angle_alpha   89.860
_cell_angle_beta   89.860
_cell_angle_gamma   106.489
_symmetry_Int_Tables_number   1
_cell_volume   468.197
_cell_formula_units_Z   1
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
  Al  Al0  1  0.988  0.012  0.500  1.0
  Al  Al1  1  0.510  0.490  0.000  1.0
  Al  Al2  1  0.990  0.489  0.753  1.0
  Al  Al3  1  0.511  0.010  0.247  1.0
  In  In4  1  0.501  0.499  0.500  1.0
  Ag  Ag5  1  1.000  0.000  0.000  1.0
  Te  Te6  1  0.394  0.121  0.994  1.0
  Te  Te7  1  0.905  0.631  0.491  1.0
  Te  Te8  1  0.879  0.606  0.006  1.0
  Te  Te9  1  0.369  0.095  0.509  1.0
  Te  Te10  1  0.876  0.148  0.259  1.0
  Te  Te11  1  0.369  0.644  0.765  1.0
  Te  Te12  1  0.852  0.124  0.741  1.0
  Te  Te13  1  0.356  0.631  0.235  1.0
[/CIF]
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