data_SrTlCo
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.23
_cell_length_b   6.23
_cell_length_c   6.23
_cell_angle_alpha   146.82
_cell_angle_beta   146.82
_cell_angle_gamma   47.64
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrTlCo
_chemical_formula_sum   'Sr1 Tl1 Co1'
_cell_volume   72.15
_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
  Sr  Sr1  1  0.0  0.0  0.91  1.0
  Tl  Tl2  1  0.0  0.0  0.16  1.0
  Co  Co0  1  0.0  0.0  0.34  1.0

data_SrTlCo
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.03
_cell_length_b   5.03
_cell_length_c   6.23
_cell_angle_alpha   90.0
_cell_angle_beta   113.82
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrTlCo
_chemical_formula_sum   'Sr2 Tl2 Co2'
_cell_volume   144.3
_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
  Sr  Sr0  2  0.41  0.5  0.91  1.0
  Tl  Tl1  2  0.16  0.0  0.16  1.0
  Co  Co2  2  0.34  0.0  0.34  1.0

Sr Tl Co
Sr Tl Co 0 1 o o + 1 2 o o o 
SrCoTl crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two SrCoTl clusters. Sr(1) is bonded in a single-bond geometry to one Tl(1) atom. The Sr(1)-Tl(1) bond length is 1.54 Å. Co(1) is bonded in a single-bond geometry to one Tl(1) atom. The Co(1)-Tl(1) bond length is 1.13 Å. Tl(1) is bonded in a linear geometry to one Sr(1) and one Co(1) atom.