data_YTcNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.24
_cell_length_b   4.24
_cell_length_c   5.22
_cell_angle_alpha   109.89
_cell_angle_beta   109.89
_cell_angle_gamma   52.05
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YTcNi2
_chemical_formula_sum   'Y1 Tc1 Ni2'
_cell_volume   68.57
_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
  Y  Y3  1  0.0  0.0  0.0  1.0
  Tc  Tc2  1  0.83  0.0  0.41  1.0
  Ni  Ni0  1  0.24  0.0  0.84  1.0
  Ni  Ni1  1  0.41  0.0  0.98  1.0

data_YTcNi2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.72
_cell_length_b   4.24
_cell_length_c   5.22
_cell_angle_alpha   109.89
_cell_angle_beta   90.0
_cell_angle_gamma   116.03
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YTcNi2
_chemical_formula_sum   'Y1 Tc1 Ni2'
_cell_volume   68.57
_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
  Y  Y0  1  0.0  0.0  0.0  1.0
  Tc  Tc1  1  0.0  0.17  0.59  1.0
  Ni  Ni2  1  0.0  0.59  0.02  1.0
  Ni  Ni3  1  0.0  0.76  0.16  1.0

Y Tc Ni Ni
YTcNi2 crystallizes in the triclinic P1 space group. Y(1) is bonded in a distorted single-bond geometry to one Tc(1), one Ni(1), and four equivalent Ni(2) atoms. The Y(1)-Tc(1) bond length is 2.51 Å. The Y(1)-Ni(1) bond length is 1.50 Å. There are a spread of Y(1)-Ni(2) bond distances ranging from 1.78-3.44 Å. Tc(1) is bonded in a 3-coordinate geometry to one Y(1), one Ni(1), and one Ni(2) atom. The Tc(1)-Ni(1) bond length is 2.33 Å. The Tc(1)-Ni(2) bond length is 2.33 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a distorted L-shaped geometry to one Y(1), one Tc(1), and one Ni(2) atom. The Ni(1)-Ni(2) bond length is 0.85 Å. In the second Ni site, Ni(2) is bonded in a 6-coordinate geometry to four equivalent Y(1), one Tc(1), and one Ni(1) atom.