The material structure described by Pr2CuSn4 crystallizes in the monoclinic Pm space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 10-coordinate geometry to two equivalent Sn(1), two equivalent Sn(2), two equivalent Sn(3), and four equivalent Sn(4) atoms. In the second Pr site, Pr(2) is bonded in a 14-coordinate geometry to four equivalent Cu(1), two equivalent Sn(1), two equivalent Sn(2), two equivalent Sn(4), and four equivalent Sn(3) atoms. Cu(1) is bonded in a 9-coordinate geometry to four equivalent Pr(2), one Sn(3), two equivalent Sn(1), and two equivalent Sn(2) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 10-coordinate geometry to two equivalent Pr(1), two equivalent Pr(2), two equivalent Cu(1), and four equivalent Sn(2) atoms. In the second Sn site, Sn(2) is bonded in a 10-coordinate geometry to two equivalent Pr(1), two equivalent Pr(2), two equivalent Cu(1), and four equivalent Sn(1) atoms. In the third Sn site, Sn(3) is bonded in a 9-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one Cu(1), and two equivalent Sn(4) atoms. In the fourth Sn site, Sn(4) is bonded in a 8-coordinate geometry to two equivalent Pr(2), four equivalent Pr(1), and two equivalent Sn(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2CuSn4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.441
_cell_length_b   4.460
_cell_length_c   9.479
_cell_angle_alpha   76.409
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   182.513
_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
  Pr  Pr0  1  0.250  0.893  0.213  1.0
  Pr  Pr1  1  0.750  0.105  0.790  1.0
  Cu  Cu2  1  0.250  0.679  0.644  1.0
  Sn  Sn3  1  0.250  0.256  0.488  1.0
  Sn  Sn4  1  0.750  0.756  0.489  1.0
  Sn  Sn5  1  0.250  0.541  0.917  1.0
  Sn  Sn6  1  0.750  0.443  0.114  1.0
[/CIF]
.
The material structure described by Pr2CuSn4 crystallizes in the monoclinic Pm space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 10-coordinate geometry to two equivalent Sn(1), two equivalent Sn(2), two equivalent Sn(3), and four equivalent Sn(4) atoms. In the second Pr site, Pr(2) is bonded in a 14-coordinate geometry to four equivalent Cu(1), two equivalent Sn(1), two equivalent Sn(2), two equivalent Sn(4), and four equivalent Sn(3) atoms. Cu(1) is bonded in a 9-coordinate geometry to four equivalent Pr(2), one Sn(3), two equivalent Sn(1), and two equivalent Sn(2) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 10-coordinate geometry to two equivalent Pr(1), two equivalent Pr(2), two equivalent Cu(1), and four equivalent Sn(2) atoms. In the second Sn site, Sn(2) is bonded in a 10-coordinate geometry to two equivalent Pr(1), two equivalent Pr(2), two equivalent Cu(1), and four equivalent Sn(1) atoms. In the third Sn site, Sn(3) is bonded in a 9-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one Cu(1), and two equivalent Sn(4) atoms. In the fourth Sn site, Sn(4) is bonded in a 8-coordinate geometry to two equivalent Pr(2), four equivalent Pr(1), and two equivalent Sn(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2CuSn4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.441
_cell_length_b   4.460
_cell_length_c   9.479
_cell_angle_alpha   76.409
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   182.513
_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
  Pr  Pr0  1  0.250  0.893  0.213  1.0
  Pr  Pr1  1  0.750  0.105  0.790  1.0
  Cu  Cu2  1  0.250  0.679  0.644  1.0
  Sn  Sn3  1  0.250  0.256  0.488  1.0
  Sn  Sn4  1  0.750  0.756  0.489  1.0
  Sn  Sn5  1  0.250  0.541  0.917  1.0
  Sn  Sn6  1  0.750  0.443  0.114  1.0
[/CIF]
.