data_Dy2ErTc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.14
_cell_length_b   5.14
_cell_length_c   5.14
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Dy2ErTc
_chemical_formula_sum   'Dy2 Er1 Tc1'
_cell_volume   96.22
_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
  Dy  Dy0  1  0.46  0.46  0.46  1.0
  Dy  Dy1  1  0.82  0.82  0.82  1.0
  Er  Er2  1  0.64  0.64  0.64  1.0
  Tc  Tc3  1  0.0  0.0  0.0  1.0

data_Dy2ErTc
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.14
_cell_length_b   5.14
_cell_length_c   12.6
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Dy2ErTc
_chemical_formula_sum   'Dy6 Er3 Tc3'
_cell_volume   288.65
_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
  Dy  Dy0  3  0.0  0.0  0.18  1.0
  Dy  Dy1  3  0.0  0.0  0.54  1.0
  Er  Er2  3  0.0  0.0  0.36  1.0
  Tc  Tc3  3  0.0  0.0  0.0  1.0

Dy Dy Er Tc
ErDy2Tc crystallizes in the trigonal R3m space group. Er(1) is bonded to one Dy(1), one Dy(2), and three equivalent Tc(1) atoms to form corner-sharing ErDy2Tc3 trigonal bipyramids. The Er(1)-Dy(1) bond length is 2.29 Å. The Er(1)-Dy(2) bond length is 2.29 Å. All Er(1)-Tc(1) bond lengths are 2.99 Å. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 7-coordinate geometry to one Er(1), three equivalent Dy(2), and three equivalent Tc(1) atoms. All Dy(1)-Dy(2) bond lengths are 2.99 Å. All Dy(1)-Tc(1) bond lengths are 3.34 Å. In the second Dy site, Dy(2) is bonded in a distorted linear geometry to one Er(1), three equivalent Dy(1), and one Tc(1) atom. The Dy(2)-Tc(1) bond length is 2.29 Å. Tc(1) is bonded in a 1-coordinate geometry to three equivalent Er(1), one Dy(2), and three equivalent Dy(1) atoms.