data_CsAcSm2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.23
_cell_length_b   6.23
_cell_length_c   6.23
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CsAcSm2
_chemical_formula_sum   'Cs1 Ac1 Sm2'
_cell_volume   170.85
_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
  Cs  Cs1  1  0.0  0.0  0.0  1.0
  Ac  Ac0  1  0.4  0.4  0.4  1.0
  Sm  Sm2  1  0.2  0.2  0.2  1.0
  Sm  Sm3  1  0.61  0.61  0.61  1.0

data_CsAcSm2
_symmetry_space_group_name_H-M   R3m
_cell_length_a   6.23
_cell_length_b   6.23
_cell_length_c   15.26
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   CsAcSm2
_chemical_formula_sum   'Cs3 Ac3 Sm6'
_cell_volume   512.54
_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
  Cs  Cs0  3  0.0  0.0  0.0  1.0
  Ac  Ac1  3  0.0  0.0  0.6  1.0
  Sm  Sm2  3  0.0  0.0  0.39  1.0
  Sm  Sm3  3  0.0  0.0  0.8  1.0

Cs Ac Sm Sm
CsAcSm2 crystallizes in the trigonal R3m space group. Cs(1) is bonded in a 10-coordinate geometry to three equivalent Ac(1), three equivalent Sm(2), and four equivalent Sm(1) atoms. All Cs(1)-Ac(1) bond lengths are 3.75 Å. All Cs(1)-Sm(2) bond lengths are 3.71 Å. There is one shorter (3.08 Å) and three longer (4.12 Å) Cs(1)-Sm(1) bond lengths. Ac(1) is bonded in a 5-coordinate geometry to three equivalent Cs(1), one Sm(1), and one Sm(2) atom. The Ac(1)-Sm(1) bond length is 3.08 Å. The Ac(1)-Sm(2) bond length is 3.08 Å. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a distorted linear geometry to four equivalent Cs(1) and one Ac(1) atom. In the second Sm site, Sm(2) is bonded to three equivalent Cs(1) and one Ac(1) atom to form distorted corner-sharing SmCs3Ac tetrahedra.