The crystal structure described by Pr(RhSn2)2 crystallizes in the orthorhombic Pnma space group. Pr(1) is bonded in a 6-coordinate geometry to two equivalent Sn(1), two equivalent Sn(2), and three equivalent Sn(3) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 7-coordinate geometry to one Sn(1), three equivalent Sn(3), and three equivalent Sn(4) atoms. In the second Rh site, Rh(2) is bonded in a 7-coordinate geometry to one Sn(4), three equivalent Sn(1), and three equivalent Sn(2) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to two equivalent Pr(1), one Rh(1), and three equivalent Rh(2) atoms. In the second Sn site, Sn(2) is bonded in a 5-coordinate geometry to two equivalent Pr(1) and three equivalent Rh(2) atoms. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to three equivalent Pr(1) and three equivalent Rh(1) atoms. In the fourth Sn site, Sn(4) is bonded to one Rh(2) and three equivalent Rh(1) atoms to form a mixture of distorted corner and edge-sharing SnRh4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr(Sn2Rh)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.505
_cell_length_b   7.219
_cell_length_c   18.598
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   604.788
_cell_formula_units_Z   4
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
  Pr  Pr0  1  0.250  0.999  0.858  1.0
  Pr  Pr1  1  0.250  0.501  0.358  1.0
  Pr  Pr2  1  0.750  0.001  0.142  1.0
  Pr  Pr3  1  0.750  0.499  0.642  1.0
  Sn  Sn4  1  0.250  0.304  0.181  1.0
  Sn  Sn5  1  0.250  0.196  0.681  1.0
  Sn  Sn6  1  0.750  0.696  0.819  1.0
  Sn  Sn7  1  0.750  0.804  0.319  1.0
  Sn  Sn8  1  0.250  0.722  0.196  1.0
  Sn  Sn9  1  0.250  0.778  0.696  1.0
  Sn  Sn10  1  0.750  0.278  0.804  1.0
  Sn  Sn11  1  0.750  0.222  0.304  1.0
  Sn  Sn12  1  0.250  0.868  0.031  1.0
  Sn  Sn13  1  0.250  0.632  0.531  1.0
  Sn  Sn14  1  0.750  0.132  0.969  1.0
  Sn  Sn15  1  0.750  0.368  0.469  1.0
  Sn  Sn16  1  0.250  0.523  0.933  1.0
  Sn  Sn17  1  0.250  0.977  0.433  1.0
  Sn  Sn18  1  0.750  0.477  0.067  1.0
  Sn  Sn19  1  0.750  0.023  0.567  1.0
  Rh  Rh20  1  0.250  0.253  0.034  1.0
  Rh  Rh21  1  0.250  0.247  0.534  1.0
  Rh  Rh22  1  0.750  0.747  0.966  1.0
  Rh  Rh23  1  0.750  0.753  0.466  1.0
  Rh  Rh24  1  0.250  0.016  0.288  1.0
  Rh  Rh25  1  0.250  0.484  0.788  1.0
  Rh  Rh26  1  0.750  0.984  0.712  1.0
  Rh  Rh27  1  0.750  0.516  0.212  1.0
[/CIF]
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The crystal structure described by Pr(RhSn2)2 crystallizes in the orthorhombic Pnma space group. Pr(1) is bonded in a 6-coordinate geometry to two equivalent Sn(1), two equivalent Sn(2), and three equivalent Sn(3) atoms. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 7-coordinate geometry to one Sn(1), three equivalent Sn(3), and three equivalent Sn(4) atoms. In the second Rh site, Rh(2) is bonded in a 7-coordinate geometry to one Sn(4), three equivalent Sn(1), and three equivalent Sn(2) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to two equivalent Pr(1), one Rh(1), and three equivalent Rh(2) atoms. In the second Sn site, Sn(2) is bonded in a 5-coordinate geometry to two equivalent Pr(1) and three equivalent Rh(2) atoms. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to three equivalent Pr(1) and three equivalent Rh(1) atoms. In the fourth Sn site, Sn(4) is bonded to one Rh(2) and three equivalent Rh(1) atoms to form a mixture of distorted corner and edge-sharing SnRh4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr(Sn2Rh)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.505
_cell_length_b   7.219
_cell_length_c   18.598
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   604.788
_cell_formula_units_Z   4
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
  Pr  Pr0  1  0.250  0.999  0.858  1.0
  Pr  Pr1  1  0.250  0.501  0.358  1.0
  Pr  Pr2  1  0.750  0.001  0.142  1.0
  Pr  Pr3  1  0.750  0.499  0.642  1.0
  Sn  Sn4  1  0.250  0.304  0.181  1.0
  Sn  Sn5  1  0.250  0.196  0.681  1.0
  Sn  Sn6  1  0.750  0.696  0.819  1.0
  Sn  Sn7  1  0.750  0.804  0.319  1.0
  Sn  Sn8  1  0.250  0.722  0.196  1.0
  Sn  Sn9  1  0.250  0.778  0.696  1.0
  Sn  Sn10  1  0.750  0.278  0.804  1.0
  Sn  Sn11  1  0.750  0.222  0.304  1.0
  Sn  Sn12  1  0.250  0.868  0.031  1.0
  Sn  Sn13  1  0.250  0.632  0.531  1.0
  Sn  Sn14  1  0.750  0.132  0.969  1.0
  Sn  Sn15  1  0.750  0.368  0.469  1.0
  Sn  Sn16  1  0.250  0.523  0.933  1.0
  Sn  Sn17  1  0.250  0.977  0.433  1.0
  Sn  Sn18  1  0.750  0.477  0.067  1.0
  Sn  Sn19  1  0.750  0.023  0.567  1.0
  Rh  Rh20  1  0.250  0.253  0.034  1.0
  Rh  Rh21  1  0.250  0.247  0.534  1.0
  Rh  Rh22  1  0.750  0.747  0.966  1.0
  Rh  Rh23  1  0.750  0.753  0.466  1.0
  Rh  Rh24  1  0.250  0.016  0.288  1.0
  Rh  Rh25  1  0.250  0.484  0.788  1.0
  Rh  Rh26  1  0.750  0.984  0.712  1.0
  Rh  Rh27  1  0.750  0.516  0.212  1.0
[/CIF]
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