data_SrCuNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.88
_cell_length_b   2.88
_cell_length_c   8.6
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   108.31
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrCuNi2
_chemical_formula_sum   'Sr1 Cu1 Ni2'
_cell_volume   67.79
_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  Sr3  1  0.0  0.0  0.3  1.0
  Cu  Cu0  1  0.0  0.0  0.0  1.0
  Ni  Ni1  1  0.69  0.0  0.14  1.0
  Ni  Ni2  1  0.69  0.0  0.46  1.0

data_SrCuNi2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.88
_cell_length_b   2.88
_cell_length_c   8.6
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   108.31
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrCuNi2
_chemical_formula_sum   'Sr1 Cu1 Ni2'
_cell_volume   67.79
_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  Sr0  1  0.0  0.0  0.3  1.0
  Cu  Cu1  1  0.0  0.0  0.0  1.0
  Ni  Ni2  1  0.69  0.0  0.14  1.0
  Ni  Ni3  1  0.69  0.0  0.46  1.0

Sr Cu Ni Ni
Sr Cu Ni Ni 0 2 - o o 0 3 - o o 1 2 - o o 
SrNi2Cu crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one SrNi2Cu cluster. Sr(1) is bonded in a distorted bent 120 degrees geometry to one Ni(1) and one Ni(2) atom. The Sr(1)-Ni(1) bond length is 1.65 Å. The Sr(1)-Ni(2) bond length is 1.65 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 1-coordinate geometry to one Sr(1) and one Cu(1) atom. The Ni(1)-Cu(1) bond length is 1.50 Å. In the second Ni site, Ni(2) is bonded in a distorted single-bond geometry to one Sr(1) atom. Cu(1) is bonded in a distorted single-bond geometry to one Ni(1) atom.