The compound described by NaGa3Te5 crystallizes in the trigonal R32 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent Te(1), two equivalent Te(3), and two equivalent Te(4) atoms to form distorted NaTe6 octahedra that share corners with two equivalent Na(2)Te6 octahedra, corners with four equivalent Na(1)Te6 octahedra, corners with two equivalent Ga(1)Te4 tetrahedra, corners with two equivalent Ga(2)Te4 tetrahedra, edges with two equivalent Ga(1)Te4 tetrahedra, and edges with two equivalent Ga(2)Te4 tetrahedra. The corner-sharing octahedral tilt angles range from 24-31°. In the second Na site, Na(2) is bonded to six equivalent Te(4) atoms to form distorted NaTe6 octahedra that share corners with six equivalent Na(1)Te6 octahedra, corners with six equivalent Ga(1)Te4 tetrahedra, and corners with six equivalent Ga(2)Te4 tetrahedra. The corner-sharing octahedral tilt angles are 31°. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one Te(2), one Te(3), one Te(4), and one Te(5) atom to form GaTe4 tetrahedra that share  a cornercorner with one Na(1)Te6 octahedra,  a cornercorner with one Na(2)Te6 octahedra, corners with three equivalent Ga(1)Te4 tetrahedra, corners with three equivalent Ga(2)Te4 tetrahedra, and  an edgeedge with one Na(1)Te6 octahedra. The corner-sharing octahedral tilt angles range from 54-69°. In the second Ga site, Ga(2) is bonded to one Te(1), one Te(4), and two equivalent Te(5) atoms to form GaTe4 tetrahedra that share  a cornercorner with one Na(1)Te6 octahedra,  a cornercorner with one Na(2)Te6 octahedra,  a cornercorner with one Ga(2)Te4 tetrahedra, corners with three equivalent Ga(1)Te4 tetrahedra,  an edgeedge with one Na(1)Te6 octahedra, and  an edgeedge with one Ga(2)Te4 tetrahedra. The corner-sharing octahedral tilt angles range from 58-78°. There are five inequivalent Te sites. In the first Te site, Te(1) is bonded to two equivalent Na(1) and two equivalent Ga(2) atoms to form distorted corner-sharing TeNa2Ga2 trigonal pyramids. In the second Te site, Te(2) is bonded in a trigonal non-coplanar geometry to three equivalent Ga(1) atoms. In the third Te site, Te(3) is bonded to two equivalent Na(1) and two equivalent Ga(1) atoms to form distorted corner-sharing TeNa2Ga2 tetrahedra. In the fourth Te site, Te(4) is bonded in a rectangular see-saw-like geometry to one Na(1), one Na(2), one Ga(1), and one Ga(2) atom. In the fifth Te site, Te(5) is bonded in a distorted T-shaped geometry to one Ga(1) and two equivalent Ga(2) atoms. is represented by the CIF card [CIF]
data_NaGa3Te5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.431
_cell_length_b   10.431
_cell_length_c   10.431
_cell_angle_alpha   90.385
_cell_angle_beta   90.385
_cell_angle_gamma   90.385
_symmetry_Int_Tables_number   1
_cell_volume   1134.957
_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
  Na  Na0  1  0.256  0.000  0.744  1.0
  Na  Na1  1  0.744  0.256  0.000  1.0
  Na  Na2  1  0.000  0.744  0.256  1.0
  Na  Na3  1  0.500  0.500  0.500  1.0
  Ga  Ga4  1  0.839  0.878  0.573  1.0
  Ga  Ga5  1  0.573  0.839  0.878  1.0
  Ga  Ga6  1  0.878  0.573  0.839  1.0
  Ga  Ga7  1  0.161  0.427  0.122  1.0
  Ga  Ga8  1  0.122  0.161  0.427  1.0
  Ga  Ga9  1  0.427  0.122  0.161  1.0
  Ga  Ga10  1  0.747  0.166  0.343  1.0
  Ga  Ga11  1  0.343  0.747  0.166  1.0
  Ga  Ga12  1  0.166  0.343  0.747  1.0
  Ga  Ga13  1  0.253  0.657  0.834  1.0
  Ga  Ga14  1  0.834  0.253  0.657  1.0
  Ga  Ga15  1  0.657  0.834  0.253  1.0
  Te  Te16  1  0.174  0.826  0.000  1.0
  Te  Te17  1  0.826  0.000  0.174  1.0
  Te  Te18  1  0.174  0.174  0.174  1.0
  Te  Te19  1  0.826  0.826  0.826  1.0
  Te  Te20  1  0.000  0.174  0.826  1.0
  Te  Te21  1  0.923  0.500  0.077  1.0
  Te  Te22  1  0.077  0.923  0.500  1.0
  Te  Te23  1  0.500  0.077  0.923  1.0
  Te  Te24  1  0.750  0.687  0.430  1.0
  Te  Te25  1  0.430  0.750  0.687  1.0
  Te  Te26  1  0.687  0.430  0.750  1.0
  Te  Te27  1  0.250  0.570  0.313  1.0
  Te  Te28  1  0.313  0.250  0.570  1.0
  Te  Te29  1  0.570  0.313  0.250  1.0
  Te  Te30  1  0.674  0.070  0.570  1.0
  Te  Te31  1  0.570  0.674  0.070  1.0
  Te  Te32  1  0.070  0.570  0.674  1.0
  Te  Te33  1  0.326  0.430  0.930  1.0
  Te  Te34  1  0.930  0.326  0.430  1.0
  Te  Te35  1  0.430  0.930  0.326  1.0
[/CIF]
.
The compound described by NaGa3Te5 crystallizes in the trigonal R32 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded to two equivalent Te(1), two equivalent Te(3), and two equivalent Te(4) atoms to form distorted NaTe6 octahedra that share corners with two equivalent Na(2)Te6 octahedra, corners with four equivalent Na(1)Te6 octahedra, corners with two equivalent Ga(1)Te4 tetrahedra, corners with two equivalent Ga(2)Te4 tetrahedra, edges with two equivalent Ga(1)Te4 tetrahedra, and edges with two equivalent Ga(2)Te4 tetrahedra. The corner-sharing octahedral tilt angles range from 24-31°. In the second Na site, Na(2) is bonded to six equivalent Te(4) atoms to form distorted NaTe6 octahedra that share corners with six equivalent Na(1)Te6 octahedra, corners with six equivalent Ga(1)Te4 tetrahedra, and corners with six equivalent Ga(2)Te4 tetrahedra. The corner-sharing octahedral tilt angles are 31°. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one Te(2), one Te(3), one Te(4), and one Te(5) atom to form GaTe4 tetrahedra that share  a cornercorner with one Na(1)Te6 octahedra,  a cornercorner with one Na(2)Te6 octahedra, corners with three equivalent Ga(1)Te4 tetrahedra, corners with three equivalent Ga(2)Te4 tetrahedra, and  an edgeedge with one Na(1)Te6 octahedra. The corner-sharing octahedral tilt angles range from 54-69°. In the second Ga site, Ga(2) is bonded to one Te(1), one Te(4), and two equivalent Te(5) atoms to form GaTe4 tetrahedra that share  a cornercorner with one Na(1)Te6 octahedra,  a cornercorner with one Na(2)Te6 octahedra,  a cornercorner with one Ga(2)Te4 tetrahedra, corners with three equivalent Ga(1)Te4 tetrahedra,  an edgeedge with one Na(1)Te6 octahedra, and  an edgeedge with one Ga(2)Te4 tetrahedra. The corner-sharing octahedral tilt angles range from 58-78°. There are five inequivalent Te sites. In the first Te site, Te(1) is bonded to two equivalent Na(1) and two equivalent Ga(2) atoms to form distorted corner-sharing TeNa2Ga2 trigonal pyramids. In the second Te site, Te(2) is bonded in a trigonal non-coplanar geometry to three equivalent Ga(1) atoms. In the third Te site, Te(3) is bonded to two equivalent Na(1) and two equivalent Ga(1) atoms to form distorted corner-sharing TeNa2Ga2 tetrahedra. In the fourth Te site, Te(4) is bonded in a rectangular see-saw-like geometry to one Na(1), one Na(2), one Ga(1), and one Ga(2) atom. In the fifth Te site, Te(5) is bonded in a distorted T-shaped geometry to one Ga(1) and two equivalent Ga(2) atoms. is represented by the CIF card [CIF]
data_NaGa3Te5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.431
_cell_length_b   10.431
_cell_length_c   10.431
_cell_angle_alpha   90.385
_cell_angle_beta   90.385
_cell_angle_gamma   90.385
_symmetry_Int_Tables_number   1
_cell_volume   1134.957
_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
  Na  Na0  1  0.256  0.000  0.744  1.0
  Na  Na1  1  0.744  0.256  0.000  1.0
  Na  Na2  1  0.000  0.744  0.256  1.0
  Na  Na3  1  0.500  0.500  0.500  1.0
  Ga  Ga4  1  0.839  0.878  0.573  1.0
  Ga  Ga5  1  0.573  0.839  0.878  1.0
  Ga  Ga6  1  0.878  0.573  0.839  1.0
  Ga  Ga7  1  0.161  0.427  0.122  1.0
  Ga  Ga8  1  0.122  0.161  0.427  1.0
  Ga  Ga9  1  0.427  0.122  0.161  1.0
  Ga  Ga10  1  0.747  0.166  0.343  1.0
  Ga  Ga11  1  0.343  0.747  0.166  1.0
  Ga  Ga12  1  0.166  0.343  0.747  1.0
  Ga  Ga13  1  0.253  0.657  0.834  1.0
  Ga  Ga14  1  0.834  0.253  0.657  1.0
  Ga  Ga15  1  0.657  0.834  0.253  1.0
  Te  Te16  1  0.174  0.826  0.000  1.0
  Te  Te17  1  0.826  0.000  0.174  1.0
  Te  Te18  1  0.174  0.174  0.174  1.0
  Te  Te19  1  0.826  0.826  0.826  1.0
  Te  Te20  1  0.000  0.174  0.826  1.0
  Te  Te21  1  0.923  0.500  0.077  1.0
  Te  Te22  1  0.077  0.923  0.500  1.0
  Te  Te23  1  0.500  0.077  0.923  1.0
  Te  Te24  1  0.750  0.687  0.430  1.0
  Te  Te25  1  0.430  0.750  0.687  1.0
  Te  Te26  1  0.687  0.430  0.750  1.0
  Te  Te27  1  0.250  0.570  0.313  1.0
  Te  Te28  1  0.313  0.250  0.570  1.0
  Te  Te29  1  0.570  0.313  0.250  1.0
  Te  Te30  1  0.674  0.070  0.570  1.0
  Te  Te31  1  0.570  0.674  0.070  1.0
  Te  Te32  1  0.070  0.570  0.674  1.0
  Te  Te33  1  0.326  0.430  0.930  1.0
  Te  Te34  1  0.930  0.326  0.430  1.0
  Te  Te35  1  0.430  0.930  0.326  1.0
[/CIF]
.