data_PrDy2Tc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.19
_cell_length_b   5.19
_cell_length_c   5.19
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   PrDy2Tc
_chemical_formula_sum   'Pr1 Dy2 Tc1'
_cell_volume   98.91
_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
  Pr  Pr2  1  0.67  0.67  0.67  1.0
  Dy  Dy0  1  0.51  0.51  0.51  1.0
  Dy  Dy1  1  0.84  0.84  0.84  1.0
  Tc  Tc3  1  0.0  0.0  0.0  1.0

data_PrDy2Tc
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.19
_cell_length_b   5.19
_cell_length_c   12.72
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   PrDy2Tc
_chemical_formula_sum   'Pr3 Dy6 Tc3'
_cell_volume   296.73
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  Pr  Pr0  3  0.0  0.0  0.33  1.0
  Dy  Dy1  3  0.0  0.0  0.16  1.0
  Dy  Dy2  3  0.0  0.0  0.49  1.0
  Tc  Tc3  3  0.0  0.0  0.0  1.0

Pr Dy Dy Tc
Pr Dy Dy Tc 0 1 o o o 0 2 o o o 2 3 + + + 
Dy2PrTc crystallizes in the trigonal R3m space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a distorted single-bond geometry to one Pr(1) atom. The Dy(1)-Pr(1) bond length is 2.09 Å. In the second Dy site, Dy(2) is bonded in a distorted linear geometry to one Pr(1) and one Tc(1) atom. The Dy(2)-Pr(1) bond length is 2.09 Å. The Dy(2)-Tc(1) bond length is 2.09 Å. Pr(1) is bonded to one Dy(1), one Dy(2), and three equivalent Tc(1) atoms to form corner-sharing PrDy2Tc3 trigonal bipyramids. All Pr(1)-Tc(1) bond lengths are 3.00 Å. Tc(1) is bonded in a 1-coordinate geometry to one Dy(2) and three equivalent Pr(1) atoms.