The crystal structure described by Tm3Y is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded to eight equivalent Tm(1) and four equivalent Y(1) atoms to form TmY4Tm8 cuboctahedra that share corners with four equivalent Y(1)Tm12 cuboctahedra; corners with fourteen equivalent Tm(1)Y4Tm8 cuboctahedra; edges with six equivalent Y(1)Tm12 cuboctahedra; edges with twelve equivalent Tm(1)Y4Tm8 cuboctahedra; faces with four equivalent Y(1)Tm12 cuboctahedra; and faces with sixteen Tm(1,1)Y4Tm8 cuboctahedra. In the second Tm site, Tm(1) is bonded to eight equivalent Tm(1) and four equivalent Y(1) atoms to form TmY4Tm8 cuboctahedra that share corners with four equivalent Y(1)Tm12 cuboctahedra; corners with fourteen Tm(1,1)Y4Tm8 cuboctahedra; edges with six equivalent Y(1)Tm12 cuboctahedra; edges with twelve equivalent Tm(1)Y4Tm8 cuboctahedra; faces with four equivalent Y(1)Tm12 cuboctahedra; and faces with sixteen Tm(1,1)Y4Tm8 cuboctahedra. Y(1) is bonded to twelve Tm(1,1) atoms to form YTm12 cuboctahedra that share corners with six equivalent Y(1)Tm12 cuboctahedra; corners with twelve Tm(1,1)Y4Tm8 cuboctahedra; edges with eighteen Tm(1,1)Y4Tm8 cuboctahedra; faces with eight equivalent Y(1)Tm12 cuboctahedra; and faces with twelve Tm(1,1)Y4Tm8 cuboctahedra. is represented by the CIF card [CIF]
data_YTm3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.191
_cell_length_b   7.191
_cell_length_c   5.531
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.999
_symmetry_Int_Tables_number   1
_cell_volume   247.680
_cell_formula_units_Z   2
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
  Y  Y0  1  0.333  0.667  0.750  1.0
  Y  Y1  1  0.667  0.333  0.250  1.0
  Tm  Tm2  1  0.165  0.331  0.250  1.0
  Tm  Tm3  1  0.669  0.835  0.250  1.0
  Tm  Tm4  1  0.165  0.835  0.250  1.0
  Tm  Tm5  1  0.835  0.669  0.750  1.0
  Tm  Tm6  1  0.331  0.165  0.750  1.0
  Tm  Tm7  1  0.835  0.165  0.750  1.0
[/CIF]
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The crystal structure described by Tm3Y is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Tm sites. In the first Tm site, Tm(1) is bonded to eight equivalent Tm(1) and four equivalent Y(1) atoms to form TmY4Tm8 cuboctahedra that share corners with four equivalent Y(1)Tm12 cuboctahedra; corners with fourteen equivalent Tm(1)Y4Tm8 cuboctahedra; edges with six equivalent Y(1)Tm12 cuboctahedra; edges with twelve equivalent Tm(1)Y4Tm8 cuboctahedra; faces with four equivalent Y(1)Tm12 cuboctahedra; and faces with sixteen Tm(1,1)Y4Tm8 cuboctahedra. In the second Tm site, Tm(1) is bonded to eight equivalent Tm(1) and four equivalent Y(1) atoms to form TmY4Tm8 cuboctahedra that share corners with four equivalent Y(1)Tm12 cuboctahedra; corners with fourteen Tm(1,1)Y4Tm8 cuboctahedra; edges with six equivalent Y(1)Tm12 cuboctahedra; edges with twelve equivalent Tm(1)Y4Tm8 cuboctahedra; faces with four equivalent Y(1)Tm12 cuboctahedra; and faces with sixteen Tm(1,1)Y4Tm8 cuboctahedra. Y(1) is bonded to twelve Tm(1,1) atoms to form YTm12 cuboctahedra that share corners with six equivalent Y(1)Tm12 cuboctahedra; corners with twelve Tm(1,1)Y4Tm8 cuboctahedra; edges with eighteen Tm(1,1)Y4Tm8 cuboctahedra; faces with eight equivalent Y(1)Tm12 cuboctahedra; and faces with twelve Tm(1,1)Y4Tm8 cuboctahedra. is represented by the CIF card [CIF]
data_YTm3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.191
_cell_length_b   7.191
_cell_length_c   5.531
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.999
_symmetry_Int_Tables_number   1
_cell_volume   247.680
_cell_formula_units_Z   2
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
  Y  Y0  1  0.333  0.667  0.750  1.0
  Y  Y1  1  0.667  0.333  0.250  1.0
  Tm  Tm2  1  0.165  0.331  0.250  1.0
  Tm  Tm3  1  0.669  0.835  0.250  1.0
  Tm  Tm4  1  0.165  0.835  0.250  1.0
  Tm  Tm5  1  0.835  0.669  0.750  1.0
  Tm  Tm6  1  0.331  0.165  0.750  1.0
  Tm  Tm7  1  0.835  0.165  0.750  1.0
[/CIF]
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