The compound described by Nd2Rh2CuSi3 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 14-coordinate geometry to two equivalent Rh(1), two equivalent Rh(2), two equivalent Cu(1), four equivalent Si(1), and four equivalent Si(3) atoms. In the second Nd site, Nd(2) is bonded in a 14-coordinate geometry to two equivalent Rh(1), two equivalent Rh(2), four equivalent Cu(1), two equivalent Si(1), and four equivalent Si(2) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to two equivalent Nd(1), two equivalent Nd(2), two equivalent Si(2), and two equivalent Si(3) atoms to form a mixture of distorted face and edge-sharing RhNd4Si4 tetrahedra. In the second Rh site, Rh(2) is bonded to two equivalent Nd(1), two equivalent Nd(2), two equivalent Si(2), and two equivalent Si(3) atoms to form a mixture of distorted face and edge-sharing RhNd4Si4 tetrahedra. Cu(1) is bonded in a 9-coordinate geometry to two equivalent Nd(1), four equivalent Nd(2), one Si(2), and two equivalent Si(1) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to two equivalent Nd(2), four equivalent Nd(1), two equivalent Cu(1), and one Si(3) atom. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to four equivalent Nd(2), two equivalent Rh(1), two equivalent Rh(2), and one Cu(1) atom. In the third Si site, Si(3) is bonded in a 9-coordinate geometry to four equivalent Nd(1), two equivalent Rh(1), two equivalent Rh(2), and one Si(1) atom. is represented by the CIF card [CIF]
data_Nd2CuSi3Rh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.829
_cell_length_b   8.829
_cell_length_c   4.103
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   152.929
_symmetry_Int_Tables_number   1
_cell_volume   145.576
_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
  Nd  Nd0  1  0.898  0.102  0.000  1.0
  Nd  Nd1  1  0.103  0.897  0.500  1.0
  Cu  Cu2  1  0.535  0.465  0.000  1.0
  Si  Si3  1  0.466  0.534  0.500  1.0
  Si  Si4  1  0.675  0.325  0.000  1.0
  Si  Si5  1  0.324  0.676  0.500  1.0
  Rh  Rh6  1  0.250  0.750  0.000  1.0
  Rh  Rh7  1  0.750  0.250  0.500  1.0
[/CIF]
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The compound described by Nd2Rh2CuSi3 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 14-coordinate geometry to two equivalent Rh(1), two equivalent Rh(2), two equivalent Cu(1), four equivalent Si(1), and four equivalent Si(3) atoms. In the second Nd site, Nd(2) is bonded in a 14-coordinate geometry to two equivalent Rh(1), two equivalent Rh(2), four equivalent Cu(1), two equivalent Si(1), and four equivalent Si(2) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to two equivalent Nd(1), two equivalent Nd(2), two equivalent Si(2), and two equivalent Si(3) atoms to form a mixture of distorted face and edge-sharing RhNd4Si4 tetrahedra. In the second Rh site, Rh(2) is bonded to two equivalent Nd(1), two equivalent Nd(2), two equivalent Si(2), and two equivalent Si(3) atoms to form a mixture of distorted face and edge-sharing RhNd4Si4 tetrahedra. Cu(1) is bonded in a 9-coordinate geometry to two equivalent Nd(1), four equivalent Nd(2), one Si(2), and two equivalent Si(1) atoms. There are three inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to two equivalent Nd(2), four equivalent Nd(1), two equivalent Cu(1), and one Si(3) atom. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to four equivalent Nd(2), two equivalent Rh(1), two equivalent Rh(2), and one Cu(1) atom. In the third Si site, Si(3) is bonded in a 9-coordinate geometry to four equivalent Nd(1), two equivalent Rh(1), two equivalent Rh(2), and one Si(1) atom. is represented by the CIF card [CIF]
data_Nd2CuSi3Rh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.829
_cell_length_b   8.829
_cell_length_c   4.103
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   152.929
_symmetry_Int_Tables_number   1
_cell_volume   145.576
_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
  Nd  Nd0  1  0.898  0.102  0.000  1.0
  Nd  Nd1  1  0.103  0.897  0.500  1.0
  Cu  Cu2  1  0.535  0.465  0.000  1.0
  Si  Si3  1  0.466  0.534  0.500  1.0
  Si  Si4  1  0.675  0.325  0.000  1.0
  Si  Si5  1  0.324  0.676  0.500  1.0
  Rh  Rh6  1  0.250  0.750  0.000  1.0
  Rh  Rh7  1  0.750  0.250  0.500  1.0
[/CIF]
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