data_Ca2AlTe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.48
_cell_length_b   4.48
_cell_length_c   6.44
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ca2AlTe
_chemical_formula_sum   'Ca2 Al1 Te1'
_cell_volume   129.37
_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
  Ca  Ca1  1  0.24  0.24  0.67  1.0
  Ca  Ca2  1  0.0  0.0  0.39  1.0
  Al  Al0  1  0.0  0.0  0.61  1.0
  Te  Te3  1  0.24  0.24  0.43  1.0

data_Ca2AlTe
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.34
_cell_length_b   6.34
_cell_length_c   6.44
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ca2AlTe
_chemical_formula_sum   'Ca4 Al2 Te2'
_cell_volume   258.74
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Ca  Ca0  2  0.0  0.0  0.39  1.0
  Ca  Ca1  2  0.24  0.0  0.67  1.0
  Al  Al2  2  0.0  0.0  0.61  1.0
  Te  Te3  2  0.24  0.0  0.43  1.0

Ca Ca Al Te
Ca2AlTe is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Ca2AlTe clusters. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 2-coordinate geometry to one Al(1) and one Te(1) atom. The Ca(1)-Al(1) bond length is 1.57 Å. The Ca(1)-Te(1) bond length is 1.53 Å. In the second Ca site, Ca(2) is bonded in a distorted L-shaped geometry to one Al(1) and one Te(1) atom. The Ca(2)-Al(1) bond length is 1.42 Å. The Ca(2)-Te(1) bond length is 1.55 Å. Al(1) is bonded in a distorted water-like geometry to one Ca(1) and one Ca(2) atom. Te(1) is bonded in a distorted water-like geometry to one Ca(1) and one Ca(2) atom.