The material structure described by Dy2Rh12As7 crystallizes in the trigonal P3 space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to six equivalent Rh(2) and six equivalent As(3) atoms to form distorted DyAs6Rh6 cuboctahedra that share corners with six equivalent Rh(3)As4 tetrahedra, corners with six equivalent Rh(4)As4 tetrahedra, edges with three equivalent Rh(3)As4 tetrahedra, and faces with two equivalent Dy(1)As6Rh6 cuboctahedra. In the second Dy site, Dy(2) is bonded to six equivalent Rh(1) and six equivalent As(2) atoms to form distorted DyAs6Rh6 cuboctahedra that share corners with six equivalent Rh(3)As4 tetrahedra, corners with six equivalent Rh(4)As4 tetrahedra, edges with three equivalent Rh(4)As4 tetrahedra, and faces with two equivalent Dy(2)As6Rh6 cuboctahedra. There are four inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 6-coordinate geometry to two equivalent Dy(2), two equivalent As(2), and two equivalent As(3) atoms. In the second Rh site, Rh(2) is bonded in a 6-coordinate geometry to two equivalent Dy(1), two equivalent As(2), and two equivalent As(3) atoms. In the third Rh site, Rh(3) is bonded to one As(1), one As(2), and two equivalent As(3) atoms to form distorted RhAs4 tetrahedra that share corners with two equivalent Dy(1)As6Rh6 cuboctahedra, corners with two equivalent Dy(2)As6Rh6 cuboctahedra, corners with three equivalent Rh(4)As4 tetrahedra, corners with four equivalent Rh(3)As4 tetrahedra,  an edgeedge with one Dy(1)As6Rh6 cuboctahedra, and edges with two equivalent Rh(4)As4 tetrahedra. In the fourth Rh site, Rh(4) is bonded to one As(1), one As(3), and two equivalent As(2) atoms to form distorted RhAs4 tetrahedra that share corners with two equivalent Dy(1)As6Rh6 cuboctahedra, corners with two equivalent Dy(2)As6Rh6 cuboctahedra, corners with three equivalent Rh(3)As4 tetrahedra, corners with four equivalent Rh(4)As4 tetrahedra,  an edgeedge with one Dy(2)As6Rh6 cuboctahedra, and edges with two equivalent Rh(3)As4 tetrahedra. There are three inequivalent As sites. In the first As site, As(1) is bonded in a distorted octahedral geometry to three equivalent Rh(3) and three equivalent Rh(4) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to two equivalent Dy(2), one Rh(3), two equivalent Rh(1), two equivalent Rh(2), and two equivalent Rh(4) atoms. In the third As site, As(3) is bonded in a 9-coordinate geometry to two equivalent Dy(1), one Rh(4), two equivalent Rh(1), two equivalent Rh(2), and two equivalent Rh(3) atoms. is represented by the CIF card [CIF]
data_Dy2As7Rh12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.887
_cell_length_b   9.887
_cell_length_c   3.902
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   330.377
_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
  Dy  Dy0  1  0.333  0.667  0.757  1.0
  Dy  Dy1  1  0.667  0.333  0.251  1.0
  As  As2  1  0.000  1.000  0.518  1.0
  As  As3  1  0.881  0.594  0.755  1.0
  As  As4  1  0.406  0.287  0.755  1.0
  As  As5  1  0.713  0.119  0.755  1.0
  As  As6  1  0.118  0.405  0.254  1.0
  As  As7  1  0.595  0.713  0.254  1.0
  As  As8  1  0.287  0.882  0.254  1.0
  Rh  Rh9  1  0.618  0.552  0.753  1.0
  Rh  Rh10  1  0.448  0.067  0.753  1.0
  Rh  Rh11  1  0.933  0.382  0.753  1.0
  Rh  Rh12  1  0.382  0.449  0.255  1.0
  Rh  Rh13  1  0.551  0.933  0.255  1.0
  Rh  Rh14  1  0.067  0.618  0.255  1.0
  Rh  Rh15  1  0.114  0.849  0.759  1.0
  Rh  Rh16  1  0.151  0.265  0.759  1.0
  Rh  Rh17  1  0.735  0.886  0.759  1.0
  Rh  Rh18  1  0.886  0.149  0.250  1.0
  Rh  Rh19  1  0.851  0.737  0.250  1.0
  Rh  Rh20  1  0.263  0.114  0.250  1.0
[/CIF]
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The material structure described by Dy2Rh12As7 crystallizes in the trigonal P3 space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to six equivalent Rh(2) and six equivalent As(3) atoms to form distorted DyAs6Rh6 cuboctahedra that share corners with six equivalent Rh(3)As4 tetrahedra, corners with six equivalent Rh(4)As4 tetrahedra, edges with three equivalent Rh(3)As4 tetrahedra, and faces with two equivalent Dy(1)As6Rh6 cuboctahedra. In the second Dy site, Dy(2) is bonded to six equivalent Rh(1) and six equivalent As(2) atoms to form distorted DyAs6Rh6 cuboctahedra that share corners with six equivalent Rh(3)As4 tetrahedra, corners with six equivalent Rh(4)As4 tetrahedra, edges with three equivalent Rh(4)As4 tetrahedra, and faces with two equivalent Dy(2)As6Rh6 cuboctahedra. There are four inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 6-coordinate geometry to two equivalent Dy(2), two equivalent As(2), and two equivalent As(3) atoms. In the second Rh site, Rh(2) is bonded in a 6-coordinate geometry to two equivalent Dy(1), two equivalent As(2), and two equivalent As(3) atoms. In the third Rh site, Rh(3) is bonded to one As(1), one As(2), and two equivalent As(3) atoms to form distorted RhAs4 tetrahedra that share corners with two equivalent Dy(1)As6Rh6 cuboctahedra, corners with two equivalent Dy(2)As6Rh6 cuboctahedra, corners with three equivalent Rh(4)As4 tetrahedra, corners with four equivalent Rh(3)As4 tetrahedra,  an edgeedge with one Dy(1)As6Rh6 cuboctahedra, and edges with two equivalent Rh(4)As4 tetrahedra. In the fourth Rh site, Rh(4) is bonded to one As(1), one As(3), and two equivalent As(2) atoms to form distorted RhAs4 tetrahedra that share corners with two equivalent Dy(1)As6Rh6 cuboctahedra, corners with two equivalent Dy(2)As6Rh6 cuboctahedra, corners with three equivalent Rh(3)As4 tetrahedra, corners with four equivalent Rh(4)As4 tetrahedra,  an edgeedge with one Dy(2)As6Rh6 cuboctahedra, and edges with two equivalent Rh(3)As4 tetrahedra. There are three inequivalent As sites. In the first As site, As(1) is bonded in a distorted octahedral geometry to three equivalent Rh(3) and three equivalent Rh(4) atoms. In the second As site, As(2) is bonded in a 9-coordinate geometry to two equivalent Dy(2), one Rh(3), two equivalent Rh(1), two equivalent Rh(2), and two equivalent Rh(4) atoms. In the third As site, As(3) is bonded in a 9-coordinate geometry to two equivalent Dy(1), one Rh(4), two equivalent Rh(1), two equivalent Rh(2), and two equivalent Rh(3) atoms. is represented by the CIF card [CIF]
data_Dy2As7Rh12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.887
_cell_length_b   9.887
_cell_length_c   3.902
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   330.377
_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
  Dy  Dy0  1  0.333  0.667  0.757  1.0
  Dy  Dy1  1  0.667  0.333  0.251  1.0
  As  As2  1  0.000  1.000  0.518  1.0
  As  As3  1  0.881  0.594  0.755  1.0
  As  As4  1  0.406  0.287  0.755  1.0
  As  As5  1  0.713  0.119  0.755  1.0
  As  As6  1  0.118  0.405  0.254  1.0
  As  As7  1  0.595  0.713  0.254  1.0
  As  As8  1  0.287  0.882  0.254  1.0
  Rh  Rh9  1  0.618  0.552  0.753  1.0
  Rh  Rh10  1  0.448  0.067  0.753  1.0
  Rh  Rh11  1  0.933  0.382  0.753  1.0
  Rh  Rh12  1  0.382  0.449  0.255  1.0
  Rh  Rh13  1  0.551  0.933  0.255  1.0
  Rh  Rh14  1  0.067  0.618  0.255  1.0
  Rh  Rh15  1  0.114  0.849  0.759  1.0
  Rh  Rh16  1  0.151  0.265  0.759  1.0
  Rh  Rh17  1  0.735  0.886  0.759  1.0
  Rh  Rh18  1  0.886  0.149  0.250  1.0
  Rh  Rh19  1  0.851  0.737  0.250  1.0
  Rh  Rh20  1  0.263  0.114  0.250  1.0
[/CIF]
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