The structure described by Cr7Te8 crystallizes in the monoclinic C2/m space group. There are four inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to two equivalent Te(1), two equivalent Te(2), and two equivalent Te(3) atoms to form a mixture of corner, edge, and face-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 49-51°. In the second Cr site, Cr(2) is bonded to two equivalent Te(1), two equivalent Te(2), and two equivalent Te(3) atoms to form a mixture of corner, edge, and face-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. In the third Cr site, Cr(3) is bonded to one Te(1), one Te(3), and four equivalent Te(2) atoms to form a mixture of corner, edge, and face-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 49-52°. In the fourth Cr site, Cr(4) is bonded to two equivalent Te(1) and four equivalent Te(2) atoms to form a mixture of corner, edge, and face-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. There are three inequivalent Te sites. In the first Te site, Te(1) is bonded in a 6-coordinate geometry to one Cr(3), one Cr(4), two equivalent Cr(1), and two equivalent Cr(2) atoms. In the second Te site, Te(2) is bonded to one Cr(1), one Cr(2), one Cr(4), and two equivalent Cr(3) atoms to form a mixture of distorted corner and edge-sharing TeCr5 trigonal bipyramids. In the third Te site, Te(3) is bonded to one Cr(3), two equivalent Cr(1), and two equivalent Cr(2) atoms to form a mixture of distorted corner and edge-sharing TeCr5 square pyramids. is represented by the CIF file [CIF]
data_Cr7Te8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.472
_cell_length_b   7.472
_cell_length_c   9.408
_cell_angle_alpha   56.472
_cell_angle_beta   56.472
_cell_angle_gamma   66.230
_symmetry_Int_Tables_number   1
_cell_volume   361.401
_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
  Cr  Cr0  1  0.733  0.267  0.500  1.0
  Cr  Cr1  1  0.267  0.733  0.500  1.0
  Cr  Cr2  1  0.500  0.000  0.500  1.0
  Cr  Cr3  1  0.000  0.500  0.500  1.0
  Cr  Cr4  1  0.736  0.736  0.010  1.0
  Cr  Cr5  1  0.264  0.264  0.990  1.0
  Cr  Cr6  1  0.000  0.000  0.000  1.0
  Te  Te7  1  0.965  0.965  0.332  1.0
  Te  Te8  1  0.035  0.035  0.668  1.0
  Te  Te9  1  0.540  0.032  0.169  1.0
  Te  Te10  1  0.460  0.968  0.831  1.0
  Te  Te11  1  0.968  0.460  0.831  1.0
  Te  Te12  1  0.032  0.540  0.169  1.0
  Te  Te13  1  0.452  0.452  0.334  1.0
  Te  Te14  1  0.548  0.548  0.666  1.0
[/CIF]
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The structure described by Cr7Te8 crystallizes in the monoclinic C2/m space group. There are four inequivalent Cr sites. In the first Cr site, Cr(1) is bonded to two equivalent Te(1), two equivalent Te(2), and two equivalent Te(3) atoms to form a mixture of corner, edge, and face-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 49-51°. In the second Cr site, Cr(2) is bonded to two equivalent Te(1), two equivalent Te(2), and two equivalent Te(3) atoms to form a mixture of corner, edge, and face-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 49-50°. In the third Cr site, Cr(3) is bonded to one Te(1), one Te(3), and four equivalent Te(2) atoms to form a mixture of corner, edge, and face-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 49-52°. In the fourth Cr site, Cr(4) is bonded to two equivalent Te(1) and four equivalent Te(2) atoms to form a mixture of corner, edge, and face-sharing CrTe6 octahedra. The corner-sharing octahedral tilt angles range from 51-52°. There are three inequivalent Te sites. In the first Te site, Te(1) is bonded in a 6-coordinate geometry to one Cr(3), one Cr(4), two equivalent Cr(1), and two equivalent Cr(2) atoms. In the second Te site, Te(2) is bonded to one Cr(1), one Cr(2), one Cr(4), and two equivalent Cr(3) atoms to form a mixture of distorted corner and edge-sharing TeCr5 trigonal bipyramids. In the third Te site, Te(3) is bonded to one Cr(3), two equivalent Cr(1), and two equivalent Cr(2) atoms to form a mixture of distorted corner and edge-sharing TeCr5 square pyramids. is represented by the CIF file [CIF]
data_Cr7Te8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.472
_cell_length_b   7.472
_cell_length_c   9.408
_cell_angle_alpha   56.472
_cell_angle_beta   56.472
_cell_angle_gamma   66.230
_symmetry_Int_Tables_number   1
_cell_volume   361.401
_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
  Cr  Cr0  1  0.733  0.267  0.500  1.0
  Cr  Cr1  1  0.267  0.733  0.500  1.0
  Cr  Cr2  1  0.500  0.000  0.500  1.0
  Cr  Cr3  1  0.000  0.500  0.500  1.0
  Cr  Cr4  1  0.736  0.736  0.010  1.0
  Cr  Cr5  1  0.264  0.264  0.990  1.0
  Cr  Cr6  1  0.000  0.000  0.000  1.0
  Te  Te7  1  0.965  0.965  0.332  1.0
  Te  Te8  1  0.035  0.035  0.668  1.0
  Te  Te9  1  0.540  0.032  0.169  1.0
  Te  Te10  1  0.460  0.968  0.831  1.0
  Te  Te11  1  0.968  0.460  0.831  1.0
  Te  Te12  1  0.032  0.540  0.169  1.0
  Te  Te13  1  0.452  0.452  0.334  1.0
  Te  Te14  1  0.548  0.548  0.666  1.0
[/CIF]
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