data_SrNbCu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.05
_cell_length_b   5.05
_cell_length_c   2.96
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrNbCu2
_chemical_formula_sum   'Sr1 Nb1 Cu2'
_cell_volume   75.68
_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  0.0  1.0
  Nb  Nb2  1  0.53  0.53  0.0  1.0
  Cu  Cu0  1  0.0  0.53  0.48  1.0
  Cu  Cu1  1  0.53  0.0  0.48  1.0

data_SrNbCu2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.15
_cell_length_b   7.15
_cell_length_c   2.96
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrNbCu2
_chemical_formula_sum   'Sr2 Nb2 Cu4'
_cell_volume   151.35
_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  0.0  0.0  0.0  1.0
  Nb  Nb1  2  0.03  0.5  -0.0  1.0
  Cu  Cu2  4  0.26  0.26  0.48  1.0

Sr Nb Cu Cu
SrNbCu2 is alpha iridium vanadium-derived structured and crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a distorted body-centered cubic geometry to eight equivalent Cu(1) atoms. There are a spread of Sr(1)-Cu(1) bond distances ranging from 2.79-3.07 Å. Nb(1) is bonded in a 8-coordinate geometry to eight equivalent Cu(1) atoms. There are a spread of Nb(1)-Cu(1) bond distances ranging from 2.79-3.07 Å. Cu(1) is bonded in a 8-coordinate geometry to four equivalent Sr(1) and four equivalent Nb(1) atoms.