The material described by SmY3Fe34 crystallizes in the hexagonal P-6m2 space group. Sm(1) is bonded in a 20-coordinate geometry to two equivalent Fe(1), six equivalent Fe(3), six equivalent Fe(5), and six equivalent Fe(7) atoms. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a 20-coordinate geometry to two equivalent Fe(2), six equivalent Fe(4), six equivalent Fe(5), and six equivalent Fe(6) atoms. In the second Y site, Y(2) is bonded in a 18-coordinate geometry to six equivalent Fe(3), six equivalent Fe(4), and six equivalent Fe(6) atoms. In the third Y site, Y(3) is bonded in a 18-coordinate geometry to six equivalent Fe(3), six equivalent Fe(4), and six equivalent Fe(7) atoms. There are seven inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 14-coordinate geometry to one Sm(1), one Fe(1), three equivalent Fe(3), three equivalent Fe(5), and six equivalent Fe(6) atoms. In the second Fe site, Fe(2) is bonded in a 14-coordinate geometry to one Y(1), one Fe(2), three equivalent Fe(4), three equivalent Fe(5), and six equivalent Fe(7) atoms. In the third Fe site, Fe(7) is bonded in a 12-coordinate geometry to one Sm(1), one Y(3), two equivalent Fe(2), two equivalent Fe(3), two equivalent Fe(4), two equivalent Fe(5), and two equivalent Fe(7) atoms. In the fourth Fe site, Fe(3) is bonded to one Sm(1), one Y(2), one Y(3), one Fe(1), two equivalent Fe(4), two equivalent Fe(5), two equivalent Fe(6), and two equivalent Fe(7) atoms to form FeSmY2Fe9 cuboctahedra that share corners with four equivalent Fe(4)Y3Fe9 cuboctahedra, corners with five equivalent Fe(5)SmYFe10 cuboctahedra, corners with six equivalent Fe(3)SmY2Fe9 cuboctahedra, edges with three equivalent Fe(5)SmYFe10 cuboctahedra, edges with five equivalent Fe(4)Y3Fe9 cuboctahedra, faces with two equivalent Fe(5)SmYFe10 cuboctahedra, faces with two equivalent Fe(4)Y3Fe9 cuboctahedra, and faces with six equivalent Fe(3)SmY2Fe9 cuboctahedra. In the fifth Fe site, Fe(4) is bonded to one Y(1), one Y(2), one Y(3), one Fe(2), two equivalent Fe(3), two equivalent Fe(5), two equivalent Fe(6), and two equivalent Fe(7) atoms to form distorted FeY3Fe9 cuboctahedra that share corners with four equivalent Fe(3)SmY2Fe9 cuboctahedra, corners with five equivalent Fe(5)SmYFe10 cuboctahedra, corners with six equivalent Fe(4)Y3Fe9 cuboctahedra, edges with three equivalent Fe(5)SmYFe10 cuboctahedra, edges with five equivalent Fe(3)SmY2Fe9 cuboctahedra, faces with two equivalent Fe(3)SmY2Fe9 cuboctahedra, faces with two equivalent Fe(5)SmYFe10 cuboctahedra, and faces with six equivalent Fe(4)Y3Fe9 cuboctahedra. In the sixth Fe site, Fe(5) is bonded to one Sm(1), one Y(1), one Fe(1), one Fe(2), two equivalent Fe(3), two equivalent Fe(4), two equivalent Fe(6), and two equivalent Fe(7) atoms to form FeSmYFe10 cuboctahedra that share corners with four equivalent Fe(5)SmYFe10 cuboctahedra, corners with five equivalent Fe(3)SmY2Fe9 cuboctahedra, corners with five equivalent Fe(4)Y3Fe9 cuboctahedra, edges with three equivalent Fe(3)SmY2Fe9 cuboctahedra, edges with three equivalent Fe(4)Y3Fe9 cuboctahedra, faces with two equivalent Fe(3)SmY2Fe9 cuboctahedra, faces with two equivalent Fe(4)Y3Fe9 cuboctahedra, and faces with six equivalent Fe(5)SmYFe10 cuboctahedra. In the seventh Fe site, Fe(6) is bonded in a 12-coordinate geometry to one Y(1), one Y(2), two equivalent Fe(1), two equivalent Fe(3), two equivalent Fe(4), two equivalent Fe(5), and two equivalent Fe(6) atoms. is represented by the CIF card [CIF]
data_SmY3Fe34
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.268
_cell_length_b   8.523
_cell_length_c   8.524
_cell_angle_alpha   60.004
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   520.210
_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
  Sm  Sm0  1  0.250  0.667  0.667  1.0
  Y  Y1  1  0.750  0.333  0.333  1.0
  Y  Y2  1  0.750  1.000  0.000  1.0
  Y  Y3  1  0.250  1.000  0.000  1.0
  Fe  Fe4  1  0.607  0.667  0.667  1.0
  Fe  Fe5  1  0.393  0.333  0.333  1.0
  Fe  Fe6  1  0.107  0.333  0.333  1.0
  Fe  Fe7  1  0.893  0.667  0.667  1.0
  Fe  Fe8  1  0.486  0.834  0.834  1.0
  Fe  Fe9  1  0.486  0.834  0.331  1.0
  Fe  Fe10  1  0.486  0.331  0.834  1.0
  Fe  Fe11  1  0.515  0.166  0.166  1.0
  Fe  Fe12  1  0.515  0.166  0.668  1.0
  Fe  Fe13  1  0.515  0.668  0.166  1.0
  Fe  Fe14  1  0.985  0.166  0.166  1.0
  Fe  Fe15  1  0.985  0.166  0.668  1.0
  Fe  Fe16  1  0.985  0.668  0.166  1.0
  Fe  Fe17  1  0.014  0.834  0.834  1.0
  Fe  Fe18  1  0.014  0.834  0.331  1.0
  Fe  Fe19  1  0.014  0.331  0.834  1.0
  Fe  Fe20  1  0.501  0.500  0.499  1.0
  Fe  Fe21  1  0.501  0.499  0.001  1.0
  Fe  Fe22  1  0.501  0.001  0.499  1.0
  Fe  Fe23  1  0.999  0.500  0.499  1.0
  Fe  Fe24  1  0.999  0.499  0.001  1.0
  Fe  Fe25  1  0.999  0.001  0.499  1.0
  Fe  Fe26  1  0.750  0.671  0.368  1.0
  Fe  Fe27  1  0.750  0.368  0.961  1.0
  Fe  Fe28  1  0.750  0.961  0.671  1.0
  Fe  Fe29  1  0.750  0.368  0.671  1.0
  Fe  Fe30  1  0.750  0.961  0.368  1.0
  Fe  Fe31  1  0.750  0.671  0.961  1.0
  Fe  Fe32  1  0.250  0.329  0.632  1.0
  Fe  Fe33  1  0.250  0.632  0.040  1.0
  Fe  Fe34  1  0.250  0.040  0.329  1.0
  Fe  Fe35  1  0.250  0.631  0.329  1.0
  Fe  Fe36  1  0.250  0.040  0.632  1.0
  Fe  Fe37  1  0.250  0.329  0.040  1.0
[/CIF]
.
The material described by SmY3Fe34 crystallizes in the hexagonal P-6m2 space group. Sm(1) is bonded in a 20-coordinate geometry to two equivalent Fe(1), six equivalent Fe(3), six equivalent Fe(5), and six equivalent Fe(7) atoms. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a 20-coordinate geometry to two equivalent Fe(2), six equivalent Fe(4), six equivalent Fe(5), and six equivalent Fe(6) atoms. In the second Y site, Y(2) is bonded in a 18-coordinate geometry to six equivalent Fe(3), six equivalent Fe(4), and six equivalent Fe(6) atoms. In the third Y site, Y(3) is bonded in a 18-coordinate geometry to six equivalent Fe(3), six equivalent Fe(4), and six equivalent Fe(7) atoms. There are seven inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 14-coordinate geometry to one Sm(1), one Fe(1), three equivalent Fe(3), three equivalent Fe(5), and six equivalent Fe(6) atoms. In the second Fe site, Fe(2) is bonded in a 14-coordinate geometry to one Y(1), one Fe(2), three equivalent Fe(4), three equivalent Fe(5), and six equivalent Fe(7) atoms. In the third Fe site, Fe(7) is bonded in a 12-coordinate geometry to one Sm(1), one Y(3), two equivalent Fe(2), two equivalent Fe(3), two equivalent Fe(4), two equivalent Fe(5), and two equivalent Fe(7) atoms. In the fourth Fe site, Fe(3) is bonded to one Sm(1), one Y(2), one Y(3), one Fe(1), two equivalent Fe(4), two equivalent Fe(5), two equivalent Fe(6), and two equivalent Fe(7) atoms to form FeSmY2Fe9 cuboctahedra that share corners with four equivalent Fe(4)Y3Fe9 cuboctahedra, corners with five equivalent Fe(5)SmYFe10 cuboctahedra, corners with six equivalent Fe(3)SmY2Fe9 cuboctahedra, edges with three equivalent Fe(5)SmYFe10 cuboctahedra, edges with five equivalent Fe(4)Y3Fe9 cuboctahedra, faces with two equivalent Fe(5)SmYFe10 cuboctahedra, faces with two equivalent Fe(4)Y3Fe9 cuboctahedra, and faces with six equivalent Fe(3)SmY2Fe9 cuboctahedra. In the fifth Fe site, Fe(4) is bonded to one Y(1), one Y(2), one Y(3), one Fe(2), two equivalent Fe(3), two equivalent Fe(5), two equivalent Fe(6), and two equivalent Fe(7) atoms to form distorted FeY3Fe9 cuboctahedra that share corners with four equivalent Fe(3)SmY2Fe9 cuboctahedra, corners with five equivalent Fe(5)SmYFe10 cuboctahedra, corners with six equivalent Fe(4)Y3Fe9 cuboctahedra, edges with three equivalent Fe(5)SmYFe10 cuboctahedra, edges with five equivalent Fe(3)SmY2Fe9 cuboctahedra, faces with two equivalent Fe(3)SmY2Fe9 cuboctahedra, faces with two equivalent Fe(5)SmYFe10 cuboctahedra, and faces with six equivalent Fe(4)Y3Fe9 cuboctahedra. In the sixth Fe site, Fe(5) is bonded to one Sm(1), one Y(1), one Fe(1), one Fe(2), two equivalent Fe(3), two equivalent Fe(4), two equivalent Fe(6), and two equivalent Fe(7) atoms to form FeSmYFe10 cuboctahedra that share corners with four equivalent Fe(5)SmYFe10 cuboctahedra, corners with five equivalent Fe(3)SmY2Fe9 cuboctahedra, corners with five equivalent Fe(4)Y3Fe9 cuboctahedra, edges with three equivalent Fe(3)SmY2Fe9 cuboctahedra, edges with three equivalent Fe(4)Y3Fe9 cuboctahedra, faces with two equivalent Fe(3)SmY2Fe9 cuboctahedra, faces with two equivalent Fe(4)Y3Fe9 cuboctahedra, and faces with six equivalent Fe(5)SmYFe10 cuboctahedra. In the seventh Fe site, Fe(6) is bonded in a 12-coordinate geometry to one Y(1), one Y(2), two equivalent Fe(1), two equivalent Fe(3), two equivalent Fe(4), two equivalent Fe(5), and two equivalent Fe(6) atoms. is represented by the CIF card [CIF]
data_SmY3Fe34
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.268
_cell_length_b   8.523
_cell_length_c   8.524
_cell_angle_alpha   60.004
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   520.210
_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
  Sm  Sm0  1  0.250  0.667  0.667  1.0
  Y  Y1  1  0.750  0.333  0.333  1.0
  Y  Y2  1  0.750  1.000  0.000  1.0
  Y  Y3  1  0.250  1.000  0.000  1.0
  Fe  Fe4  1  0.607  0.667  0.667  1.0
  Fe  Fe5  1  0.393  0.333  0.333  1.0
  Fe  Fe6  1  0.107  0.333  0.333  1.0
  Fe  Fe7  1  0.893  0.667  0.667  1.0
  Fe  Fe8  1  0.486  0.834  0.834  1.0
  Fe  Fe9  1  0.486  0.834  0.331  1.0
  Fe  Fe10  1  0.486  0.331  0.834  1.0
  Fe  Fe11  1  0.515  0.166  0.166  1.0
  Fe  Fe12  1  0.515  0.166  0.668  1.0
  Fe  Fe13  1  0.515  0.668  0.166  1.0
  Fe  Fe14  1  0.985  0.166  0.166  1.0
  Fe  Fe15  1  0.985  0.166  0.668  1.0
  Fe  Fe16  1  0.985  0.668  0.166  1.0
  Fe  Fe17  1  0.014  0.834  0.834  1.0
  Fe  Fe18  1  0.014  0.834  0.331  1.0
  Fe  Fe19  1  0.014  0.331  0.834  1.0
  Fe  Fe20  1  0.501  0.500  0.499  1.0
  Fe  Fe21  1  0.501  0.499  0.001  1.0
  Fe  Fe22  1  0.501  0.001  0.499  1.0
  Fe  Fe23  1  0.999  0.500  0.499  1.0
  Fe  Fe24  1  0.999  0.499  0.001  1.0
  Fe  Fe25  1  0.999  0.001  0.499  1.0
  Fe  Fe26  1  0.750  0.671  0.368  1.0
  Fe  Fe27  1  0.750  0.368  0.961  1.0
  Fe  Fe28  1  0.750  0.961  0.671  1.0
  Fe  Fe29  1  0.750  0.368  0.671  1.0
  Fe  Fe30  1  0.750  0.961  0.368  1.0
  Fe  Fe31  1  0.750  0.671  0.961  1.0
  Fe  Fe32  1  0.250  0.329  0.632  1.0
  Fe  Fe33  1  0.250  0.632  0.040  1.0
  Fe  Fe34  1  0.250  0.040  0.329  1.0
  Fe  Fe35  1  0.250  0.631  0.329  1.0
  Fe  Fe36  1  0.250  0.040  0.632  1.0
  Fe  Fe37  1  0.250  0.329  0.040  1.0
[/CIF]
.