data_CrInSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.18
_cell_length_b   5.18
_cell_length_c   5.18
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrInSn2
_chemical_formula_sum   'Cr1 In1 Sn2'
_cell_volume   98.08
_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
  Cr  Cr0  1  0.0  0.0  0.0  1.0
  In  In1  1  0.49  0.49  0.49  1.0
  Sn  Sn2  1  0.66  0.66  0.66  1.0
  Sn  Sn3  1  0.83  0.83  0.83  1.0

data_CrInSn2
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.18
_cell_length_b   5.18
_cell_length_c   12.68
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   CrInSn2
_chemical_formula_sum   'Cr3 In3 Sn6'
_cell_volume   294.25
_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
  Cr  Cr0  3  0.0  0.0  0.0  1.0
  In  In1  3  0.0  0.0  0.51  1.0
  Sn  Sn2  3  0.0  0.0  0.17  1.0
  Sn  Sn3  3  0.0  0.0  0.34  1.0

Cr In Sn Sn
CrInSn2 crystallizes in the trigonal R3m space group. Cr(1) is bonded to one Sn(2) and three equivalent Sn(1) atoms to form distorted CrSn4 trigonal pyramids that share  a cornercorner with one Sn(1)Cr3InSn trigonal bipyramid, corners with three equivalent Sn(2)CrIn3Sn trigonal bipyramids, corners with six equivalent Cr(1)Sn4 trigonal pyramids, and edges with three equivalent In(1)Sn4 trigonal pyramids. The Cr(1)-Sn(2) bond length is 2.15 Å. All Cr(1)-Sn(1) bond lengths are 2.99 Å. In(1) is bonded to one Sn(1) and three equivalent Sn(2) atoms to form distorted InSn4 trigonal pyramids that share  a cornercorner with one Sn(2)CrIn3Sn trigonal bipyramid, corners with three equivalent Sn(1)Cr3InSn trigonal bipyramids, corners with six equivalent In(1)Sn4 trigonal pyramids, and edges with three equivalent Cr(1)Sn4 trigonal pyramids. The In(1)-Sn(1) bond length is 2.15 Å. All In(1)-Sn(2) bond lengths are 2.99 Å. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded to three equivalent Cr(1), one In(1), and one Sn(2) atom to form SnCr3InSn trigonal bipyramids that share corners with six equivalent Sn(1)Cr3InSn trigonal bipyramids,  a cornercorner with one Cr(1)Sn4 trigonal pyramid, corners with three equivalent In(1)Sn4 trigonal pyramids, and edges with three equivalent Sn(2)CrIn3Sn trigonal bipyramids. The Sn(1)-Sn(2) bond length is 2.15 Å. In the second Sn site, Sn(2) is bonded to one Cr(1), three equivalent In(1), and one Sn(1) atom to form distorted SnCrIn3Sn trigonal bipyramids that share corners with six equivalent Sn(2)CrIn3Sn trigonal bipyramids,  a cornercorner with one In(1)Sn4 trigonal pyramid, corners with three equivalent Cr(1)Sn4 trigonal pyramids, and edges with three equivalent Sn(1)Cr3InSn trigonal bipyramids.