data_BaNiPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.67
_cell_length_b   4.67
_cell_length_c   4.67
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BaNiPt
_chemical_formula_sum   'Ba1 Ni1 Pt1'
_cell_volume   72.0
_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
  Ba  Ba0  1  0.65  0.65  0.65  1.0
  Ni  Ni1  1  0.0  0.0  0.0  1.0
  Pt  Pt2  1  0.95  0.95  0.95  1.0

data_BaNiPt
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.67
_cell_length_b   4.67
_cell_length_c   11.44
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   BaNiPt
_chemical_formula_sum   'Ba3 Ni3 Pt3'
_cell_volume   216.0
_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
  Ba  Ba0  3  0.0  0.0  0.35  1.0
  Ni  Ni1  3  0.0  0.0  0.0  1.0
  Pt  Pt2  3  0.0  0.0  0.05  1.0

Ba Ni Pt
Ba Ni Pt 0 1 o + + 0 1 + o + 0 1 + + o 0 2 - o o 0 2 o - o 0 2 o o - 1 2 - - - 
BaPtNi crystallizes in the trigonal R3m space group. Ba(1) is bonded to four equivalent Pt(1) and three equivalent Ni(1) atoms to form a mixture of edge and corner-sharing BaNi3Pt4 hexagonal pyramids. There are three shorter (2.72 Å) and one longer (3.45 Å) Ba(1)-Pt(1) bond length. All Ba(1)-Ni(1) bond lengths are 2.70 Å. Pt(1) is bonded in a single-bond geometry to four equivalent Ba(1) and one Ni(1) atom. The Pt(1)-Ni(1) bond length is 0.54 Å. Ni(1) is bonded in a single-bond geometry to three equivalent Ba(1) and one Pt(1) atom.