data_KSrAgPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.22
_cell_length_b   5.22
_cell_length_c   5.22
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KSrAgPt
_chemical_formula_sum   'K1 Sr1 Ag1 Pt1'
_cell_volume   100.66
_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
  K  K1  1  0.0  0.0  0.0  1.0
  Sr  Sr3  1  0.85  0.85  0.85  1.0
  Ag  Ag0  1  0.69  0.69  0.69  1.0
  Pt  Pt2  1  0.54  0.54  0.54  1.0

data_KSrAgPt
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.22
_cell_length_b   5.22
_cell_length_c   12.79
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   KSrAgPt
_chemical_formula_sum   'K3 Sr3 Ag3 Pt3'
_cell_volume   301.98
_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
  K  K0  3  0.0  0.0  0.0  1.0
  Sr  Sr1  3  0.0  0.0  0.15  1.0
  Ag  Ag2  3  0.0  0.0  0.31  1.0
  Pt  Pt3  3  0.0  0.0  0.46  1.0

K Sr Ag Pt
KSrPtAg crystallizes in the trigonal R3m space group. K(1) is bonded to one Sr(1) and three equivalent Ag(1) atoms to form distorted KSrAg3 trigonal pyramids that share  a cornercorner with one Ag(1)K3SrPt trigonal bipyramid, corners with six equivalent K(1)SrAg3 trigonal pyramids, and edges with three equivalent Pt(1)Sr3Ag trigonal pyramids. The K(1)-Sr(1) bond length is 1.97 Å. All K(1)-Ag(1) bond lengths are 3.03 Å. Sr(1) is bonded in a 5-coordinate geometry to one K(1), three equivalent Pt(1), and one Ag(1) atom. All Sr(1)-Pt(1) bond lengths are 3.03 Å. The Sr(1)-Ag(1) bond length is 1.97 Å. Pt(1) is bonded to three equivalent Sr(1) and one Ag(1) atom to form distorted PtSr3Ag trigonal pyramids that share corners with three equivalent Ag(1)K3SrPt trigonal bipyramids, corners with six equivalent Pt(1)Sr3Ag trigonal pyramids, and edges with three equivalent K(1)SrAg3 trigonal pyramids. The Pt(1)-Ag(1) bond length is 1.97 Å. Ag(1) is bonded to three equivalent K(1), one Sr(1), and one Pt(1) atom to form distorted AgK3SrPt trigonal bipyramids that share corners with six equivalent Ag(1)K3SrPt trigonal bipyramids,  a cornercorner with one K(1)SrAg3 trigonal pyramid, and corners with three equivalent Pt(1)Sr3Ag trigonal pyramids.