The material described by Dy3As is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to four equivalent Dy(1), four equivalent Dy(2), and four equivalent As(1) atoms to form distorted DyDy8As4 cuboctahedra that share corners with twelve equivalent Dy(1)Dy8As4 cuboctahedra, edges with eight equivalent Dy(1)Dy8As4 cuboctahedra, edges with eight equivalent As(1)Dy12 cuboctahedra, faces with four equivalent As(1)Dy12 cuboctahedra, and faces with ten equivalent Dy(1)Dy8As4 cuboctahedra. In the second Dy site, Dy(2) is bonded in a square co-planar geometry to eight equivalent Dy(1) and four equivalent As(1) atoms. As(1) is bonded to four equivalent Dy(2) and eight equivalent Dy(1) atoms to form AsDy12 cuboctahedra that share corners with four equivalent As(1)Dy12 cuboctahedra, edges with eight equivalent As(1)Dy12 cuboctahedra, edges with sixteen equivalent Dy(1)Dy8As4 cuboctahedra, faces with four equivalent As(1)Dy12 cuboctahedra, and faces with eight equivalent Dy(1)Dy8As4 cuboctahedra. is represented by the CIF card [CIF]
data_Dy3As
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.045
_cell_length_b   6.045
_cell_length_c   6.045
_cell_angle_alpha   136.380
_cell_angle_beta   136.380
_cell_angle_gamma   63.393
_symmetry_Int_Tables_number   1
_cell_volume   103.771
_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  0.750  0.250  0.500  1.0
  Dy  Dy1  1  0.250  0.750  0.500  1.0
  Dy  Dy2  1  0.500  0.500  0.000  1.0
  As  As3  1  0.000  0.000  0.000  1.0
[/CIF]
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The material described by Dy3As is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to four equivalent Dy(1), four equivalent Dy(2), and four equivalent As(1) atoms to form distorted DyDy8As4 cuboctahedra that share corners with twelve equivalent Dy(1)Dy8As4 cuboctahedra, edges with eight equivalent Dy(1)Dy8As4 cuboctahedra, edges with eight equivalent As(1)Dy12 cuboctahedra, faces with four equivalent As(1)Dy12 cuboctahedra, and faces with ten equivalent Dy(1)Dy8As4 cuboctahedra. In the second Dy site, Dy(2) is bonded in a square co-planar geometry to eight equivalent Dy(1) and four equivalent As(1) atoms. As(1) is bonded to four equivalent Dy(2) and eight equivalent Dy(1) atoms to form AsDy12 cuboctahedra that share corners with four equivalent As(1)Dy12 cuboctahedra, edges with eight equivalent As(1)Dy12 cuboctahedra, edges with sixteen equivalent Dy(1)Dy8As4 cuboctahedra, faces with four equivalent As(1)Dy12 cuboctahedra, and faces with eight equivalent Dy(1)Dy8As4 cuboctahedra. is represented by the CIF card [CIF]
data_Dy3As
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.045
_cell_length_b   6.045
_cell_length_c   6.045
_cell_angle_alpha   136.380
_cell_angle_beta   136.380
_cell_angle_gamma   63.393
_symmetry_Int_Tables_number   1
_cell_volume   103.771
_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  0.750  0.250  0.500  1.0
  Dy  Dy1  1  0.250  0.750  0.500  1.0
  Dy  Dy2  1  0.500  0.500  0.000  1.0
  As  As3  1  0.000  0.000  0.000  1.0
[/CIF]
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