The structure described by Pr4Cu19In5 is Bergman Structure: Mg32(Al,Zn)49 Bergman-like structured and crystallizes in the monoclinic Pm space group. There are four inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 19-coordinate geometry to one Cu(1), one Cu(13), one Cu(9), two equivalent Cu(11), two equivalent Cu(14), two equivalent Cu(3), two equivalent Cu(5), two equivalent Cu(6), two equivalent Cu(8), one In(1), one In(2), and two equivalent In(4) atoms. In the second Pr site, Pr(2) is bonded in a 19-coordinate geometry to one Cu(10), one Cu(2), two equivalent Cu(12), two equivalent Cu(15), two equivalent Cu(4), two equivalent Cu(5), two equivalent Cu(6), two equivalent Cu(7), one In(1), one In(2), one In(5), and two equivalent In(3) atoms. In the third Pr site, Pr(3) is bonded in a 19-coordinate geometry to one Cu(11), one Cu(15), one Cu(3), two equivalent Cu(1), two equivalent Cu(6), two equivalent Cu(7), two equivalent Cu(8), two equivalent Cu(9), one In(3), one In(4), two equivalent In(2), and two equivalent In(5) atoms. In the fourth Pr site, Pr(4) is bonded in a 19-coordinate geometry to one Cu(12), one Cu(14), one Cu(4), two equivalent Cu(10), two equivalent Cu(13), two equivalent Cu(2), two equivalent Cu(5), two equivalent Cu(7), two equivalent Cu(8), one In(3), one In(4), and two equivalent In(1) atoms. There are fifteen inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 10-coordinate geometry to one Pr(1), two equivalent Pr(3), one Cu(13), two equivalent Cu(7), one In(2), one In(5), and two equivalent In(4) atoms. In the second Cu site, Cu(2) is bonded in a 10-coordinate geometry to one Pr(2), two equivalent Pr(4), one Cu(13), two equivalent Cu(8), one In(1), one In(5), and two equivalent In(3) atoms. In the third Cu site, Cu(3) is bonded in a 10-coordinate geometry to one Pr(3), two equivalent Pr(1), one Cu(14), one Cu(15), two equivalent Cu(5), one In(4), and two equivalent In(2) atoms. In the fourth Cu site, Cu(4) is bonded in a 10-coordinate geometry to one Pr(4), two equivalent Pr(2), one Cu(14), one Cu(15), two equivalent Cu(6), one In(3), and two equivalent In(1) atoms. In the fifth Cu site, Cu(5) is bonded to one Pr(1), one Pr(2), one Pr(4), one Cu(10), one Cu(12), one Cu(14), one Cu(15), one Cu(3), two equivalent Cu(5), one In(1), and one In(2) atom to form CuPr3In2Cu7 cuboctahedra that share  a cornercorner with one In(5)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(13)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra, corners with four equivalent Cu(8)Pr3In3Cu6 cuboctahedra,  an edgeedge with one Cu(13)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra,  a faceface with one Cu(7)Pr3In3Cu6 cuboctahedra, faces with two equivalent Cu(14)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(15)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, and faces with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra. In the sixth Cu site, Cu(6) is bonded to one Pr(1), one Pr(2), one Pr(3), one Cu(11), one Cu(14), one Cu(15), one Cu(4), one Cu(9), two equivalent Cu(6), one In(1), and one In(2) atom to form CuPr3In2Cu7 cuboctahedra that share  a cornercorner with one Cu(13)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra, corners with two equivalent In(5)Pr3In2Cu7 cuboctahedra, corners with four equivalent Cu(7)Pr3In3Cu6 cuboctahedra,  an edgeedge with one In(5)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra,  a faceface with one Cu(8)Pr3In3Cu6 cuboctahedra, faces with two equivalent Cu(14)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(15)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, and faces with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra. In the seventh Cu site, Cu(7) is bonded to one Pr(2), one Pr(3), one Pr(4), one Cu(1), one Cu(10), one Cu(12), one Cu(13), two equivalent Cu(7), one In(3), one In(4), and one In(5) atom to form distorted CuPr3In3Cu6 cuboctahedra that share  a cornercorner with one Cu(14)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(15)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra, corners with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra, corners with four equivalent Cu(6)Pr3In2Cu7 cuboctahedra,  an edgeedge with one Cu(15)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra,  a faceface with one Cu(5)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(13)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra, faces with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra, and faces with two equivalent In(5)Pr3In2Cu7 cuboctahedra. In the eighth Cu site, Cu(8) is bonded to one Pr(1), one Pr(3), one Pr(4), one Cu(11), one Cu(13), one Cu(2), one Cu(9), two equivalent Cu(8), one In(3), one In(4), and one In(5) atom to form distorted CuPr3In3Cu6 cuboctahedra that share  a cornercorner with one Cu(15)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(14)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra, corners with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra, corners with four equivalent Cu(5)Pr3In2Cu7 cuboctahedra,  an edgeedge with one Cu(14)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra,  a faceface with one Cu(6)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(13)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra, faces with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra, and faces with two equivalent In(5)Pr3In2Cu7 cuboctahedra. In the ninth Cu site, Cu(9) is bonded in a 11-coordinate geometry to one Pr(1), two equivalent Pr(3), two equivalent Cu(11), two equivalent Cu(6), two equivalent Cu(8), one In(2), and one In(5) atom. In the tenth Cu site, Cu(10) is bonded in a 9-coordinate geometry to one Pr(2), two equivalent Pr(4), one Cu(13), two equivalent Cu(5), two equivalent Cu(7), and one In(1) atom. In the eleventh Cu site, Cu(11) is bonded in a 9-coordinate geometry to one Pr(3), two equivalent Pr(1), one Cu(14), two equivalent Cu(6), two equivalent Cu(8), two equivalent Cu(9), and one In(4) atom. In the twelfth Cu site, Cu(12) is bonded in a 9-coordinate geometry to one Pr(4), two equivalent Pr(2), one Cu(15), two equivalent Cu(5), two equivalent Cu(7), and one In(3) atom. In the thirteenth Cu site, Cu(13) is bonded to one Pr(1), two equivalent Pr(4), one Cu(1), one Cu(10), one Cu(2), two equivalent Cu(7), two equivalent Cu(8), and two equivalent In(4) atoms to form distorted CuPr3In2Cu7 cuboctahedra that share corners with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra, corners with four equivalent Cu(14)Pr3In2Cu7 cuboctahedra, corners with four equivalent Cu(5)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(13)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, faces with two equivalent In(5)Pr3In2Cu7 cuboctahedra, faces with four equivalent Cu(7)Pr3In3Cu6 cuboctahedra, and faces with four equivalent Cu(8)Pr3In3Cu6 cuboctahedra. In the fourteenth Cu site, Cu(14) is bonded to one Pr(4), two equivalent Pr(1), one Cu(11), one Cu(3), one Cu(4), two equivalent Cu(5), two equivalent Cu(6), and two equivalent In(1) atoms to form CuPr3In2Cu7 cuboctahedra that share corners with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra, corners with four equivalent Cu(13)Pr3In2Cu7 cuboctahedra, corners with four equivalent Cu(8)Pr3In3Cu6 cuboctahedra, edges with two equivalent Cu(14)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra, faces with two equivalent Cu(15)Pr3In2Cu7 cuboctahedra, faces with four equivalent Cu(5)Pr3In2Cu7 cuboctahedra, and faces with four equivalent Cu(6)Pr3In2Cu7 cuboctahedra. In the fifteenth Cu site, Cu(15) is bonded to one Pr(3), two equivalent Pr(2), one Cu(12), one Cu(3), one Cu(4), two equivalent Cu(5), two equivalent Cu(6), and two equivalent In(2) atoms to form CuPr3In2Cu7 cuboctahedra that share corners with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra, corners with four equivalent Cu(7)Pr3In3Cu6 cuboctahedra, corners with four equivalent In(5)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(15)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra, faces with two equivalent Cu(14)Pr3In2Cu7 cuboctahedra, faces with four equivalent Cu(5)Pr3In2Cu7 cuboctahedra, and faces with four equivalent Cu(6)Pr3In2Cu7 cuboctahedra. There are five inequivalent In sites. In the first In site, In(1) is bonded in a 14-coordinate geometry to one Pr(1), one Pr(2), two equivalent Pr(4), one Cu(10), one Cu(2), two equivalent Cu(14), two equivalent Cu(4), two equivalent Cu(5), and two equivalent Cu(6) atoms. In the second In site, In(2) is bonded in a 14-coordinate geometry to one Pr(1), one Pr(2), two equivalent Pr(3), one Cu(1), one Cu(9), two equivalent Cu(15), two equivalent Cu(3), two equivalent Cu(5), and two equivalent Cu(6) atoms. In the third In site, In(3) is bonded in a 14-coordinate geometry to one Pr(3), one Pr(4), two equivalent Pr(2), one Cu(12), one Cu(4), two equivalent Cu(2), two equivalent Cu(7), two equivalent Cu(8), and two equivalent In(5) atoms. In the fourth In site, In(4) is bonded in a 14-coordinate geometry to one Pr(3), one Pr(4), two equivalent Pr(1), one Cu(11), one Cu(3), two equivalent Cu(1), two equivalent Cu(13), two equivalent Cu(7), and two equivalent Cu(8) atoms. In the fifth In site, In(5) is bonded to one Pr(2), two equivalent Pr(3), one Cu(1), one Cu(2), one Cu(9), two equivalent Cu(7), two equivalent Cu(8), and two equivalent In(3) atoms to form distorted InPr3In2Cu7 cuboctahedra that share corners with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, corners with four equivalent Cu(15)Pr3In2Cu7 cuboctahedra, corners with four equivalent Cu(6)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra, edges with two equivalent In(5)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(13)Pr3In2Cu7 cuboctahedra, faces with four equivalent Cu(7)Pr3In3Cu6 cuboctahedra, and faces with four equivalent Cu(8)Pr3In3Cu6 cuboctahedra. is represented by the CIF file [CIF]
data_Pr4In5Cu19
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.136
_cell_length_b   8.490
_cell_length_c   10.748
_cell_angle_alpha   89.565
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   468.596
_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  0.000  0.756  0.937  1.0
  Pr  Pr1  1  0.000  0.255  0.567  1.0
  Pr  Pr2  1  0.500  0.241  0.048  1.0
  Pr  Pr3  1  0.500  0.746  0.444  1.0
  In  In4  1  0.000  0.640  0.639  1.0
  In  In5  1  0.000  0.140  0.861  1.0
  In  In6  1  0.500  0.363  0.370  1.0
  In  In7  1  0.500  0.863  0.138  1.0
  In  In8  1  0.000  0.312  0.242  1.0
  Cu  Cu9  1  0.000  0.046  0.102  1.0
  Cu  Cu10  1  0.000  0.567  0.397  1.0
  Cu  Cu11  1  0.500  0.941  0.892  1.0
  Cu  Cu12  1  0.500  0.444  0.609  1.0
  Cu  Cu13  1  0.251  0.934  0.689  1.0
  Cu  Cu14  1  0.748  0.434  0.811  1.0
  Cu  Cu15  1  0.744  0.056  0.314  1.0
  Cu  Cu16  1  0.255  0.577  0.187  1.0
  Cu  Cu17  1  0.256  0.056  0.314  1.0
  Cu  Cu18  1  0.745  0.577  0.187  1.0
  Cu  Cu19  1  0.749  0.934  0.689  1.0
  Cu  Cu20  1  0.252  0.434  0.811  1.0
  Cu  Cu21  1  0.000  0.422  0.009  1.0
  Cu  Cu22  1  0.000  0.917  0.486  1.0
  Cu  Cu23  1  0.500  0.581  0.985  1.0
  Cu  Cu24  1  0.500  0.081  0.516  1.0
  Cu  Cu25  1  0.000  0.815  0.258  1.0
  Cu  Cu26  1  0.500  0.684  0.757  1.0
  Cu  Cu27  1  0.500  0.183  0.742  1.0
[/CIF]
.
The structure described by Pr4Cu19In5 is Bergman Structure: Mg32(Al,Zn)49 Bergman-like structured and crystallizes in the monoclinic Pm space group. There are four inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 19-coordinate geometry to one Cu(1), one Cu(13), one Cu(9), two equivalent Cu(11), two equivalent Cu(14), two equivalent Cu(3), two equivalent Cu(5), two equivalent Cu(6), two equivalent Cu(8), one In(1), one In(2), and two equivalent In(4) atoms. In the second Pr site, Pr(2) is bonded in a 19-coordinate geometry to one Cu(10), one Cu(2), two equivalent Cu(12), two equivalent Cu(15), two equivalent Cu(4), two equivalent Cu(5), two equivalent Cu(6), two equivalent Cu(7), one In(1), one In(2), one In(5), and two equivalent In(3) atoms. In the third Pr site, Pr(3) is bonded in a 19-coordinate geometry to one Cu(11), one Cu(15), one Cu(3), two equivalent Cu(1), two equivalent Cu(6), two equivalent Cu(7), two equivalent Cu(8), two equivalent Cu(9), one In(3), one In(4), two equivalent In(2), and two equivalent In(5) atoms. In the fourth Pr site, Pr(4) is bonded in a 19-coordinate geometry to one Cu(12), one Cu(14), one Cu(4), two equivalent Cu(10), two equivalent Cu(13), two equivalent Cu(2), two equivalent Cu(5), two equivalent Cu(7), two equivalent Cu(8), one In(3), one In(4), and two equivalent In(1) atoms. There are fifteen inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 10-coordinate geometry to one Pr(1), two equivalent Pr(3), one Cu(13), two equivalent Cu(7), one In(2), one In(5), and two equivalent In(4) atoms. In the second Cu site, Cu(2) is bonded in a 10-coordinate geometry to one Pr(2), two equivalent Pr(4), one Cu(13), two equivalent Cu(8), one In(1), one In(5), and two equivalent In(3) atoms. In the third Cu site, Cu(3) is bonded in a 10-coordinate geometry to one Pr(3), two equivalent Pr(1), one Cu(14), one Cu(15), two equivalent Cu(5), one In(4), and two equivalent In(2) atoms. In the fourth Cu site, Cu(4) is bonded in a 10-coordinate geometry to one Pr(4), two equivalent Pr(2), one Cu(14), one Cu(15), two equivalent Cu(6), one In(3), and two equivalent In(1) atoms. In the fifth Cu site, Cu(5) is bonded to one Pr(1), one Pr(2), one Pr(4), one Cu(10), one Cu(12), one Cu(14), one Cu(15), one Cu(3), two equivalent Cu(5), one In(1), and one In(2) atom to form CuPr3In2Cu7 cuboctahedra that share  a cornercorner with one In(5)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(13)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra, corners with four equivalent Cu(8)Pr3In3Cu6 cuboctahedra,  an edgeedge with one Cu(13)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra,  a faceface with one Cu(7)Pr3In3Cu6 cuboctahedra, faces with two equivalent Cu(14)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(15)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, and faces with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra. In the sixth Cu site, Cu(6) is bonded to one Pr(1), one Pr(2), one Pr(3), one Cu(11), one Cu(14), one Cu(15), one Cu(4), one Cu(9), two equivalent Cu(6), one In(1), and one In(2) atom to form CuPr3In2Cu7 cuboctahedra that share  a cornercorner with one Cu(13)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra, corners with two equivalent In(5)Pr3In2Cu7 cuboctahedra, corners with four equivalent Cu(7)Pr3In3Cu6 cuboctahedra,  an edgeedge with one In(5)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra,  a faceface with one Cu(8)Pr3In3Cu6 cuboctahedra, faces with two equivalent Cu(14)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(15)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, and faces with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra. In the seventh Cu site, Cu(7) is bonded to one Pr(2), one Pr(3), one Pr(4), one Cu(1), one Cu(10), one Cu(12), one Cu(13), two equivalent Cu(7), one In(3), one In(4), and one In(5) atom to form distorted CuPr3In3Cu6 cuboctahedra that share  a cornercorner with one Cu(14)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(15)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra, corners with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra, corners with four equivalent Cu(6)Pr3In2Cu7 cuboctahedra,  an edgeedge with one Cu(15)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra,  a faceface with one Cu(5)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(13)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra, faces with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra, and faces with two equivalent In(5)Pr3In2Cu7 cuboctahedra. In the eighth Cu site, Cu(8) is bonded to one Pr(1), one Pr(3), one Pr(4), one Cu(11), one Cu(13), one Cu(2), one Cu(9), two equivalent Cu(8), one In(3), one In(4), and one In(5) atom to form distorted CuPr3In3Cu6 cuboctahedra that share  a cornercorner with one Cu(15)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(14)Pr3In2Cu7 cuboctahedra, corners with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra, corners with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra, corners with four equivalent Cu(5)Pr3In2Cu7 cuboctahedra,  an edgeedge with one Cu(14)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra,  a faceface with one Cu(6)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(13)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra, faces with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra, and faces with two equivalent In(5)Pr3In2Cu7 cuboctahedra. In the ninth Cu site, Cu(9) is bonded in a 11-coordinate geometry to one Pr(1), two equivalent Pr(3), two equivalent Cu(11), two equivalent Cu(6), two equivalent Cu(8), one In(2), and one In(5) atom. In the tenth Cu site, Cu(10) is bonded in a 9-coordinate geometry to one Pr(2), two equivalent Pr(4), one Cu(13), two equivalent Cu(5), two equivalent Cu(7), and one In(1) atom. In the eleventh Cu site, Cu(11) is bonded in a 9-coordinate geometry to one Pr(3), two equivalent Pr(1), one Cu(14), two equivalent Cu(6), two equivalent Cu(8), two equivalent Cu(9), and one In(4) atom. In the twelfth Cu site, Cu(12) is bonded in a 9-coordinate geometry to one Pr(4), two equivalent Pr(2), one Cu(15), two equivalent Cu(5), two equivalent Cu(7), and one In(3) atom. In the thirteenth Cu site, Cu(13) is bonded to one Pr(1), two equivalent Pr(4), one Cu(1), one Cu(10), one Cu(2), two equivalent Cu(7), two equivalent Cu(8), and two equivalent In(4) atoms to form distorted CuPr3In2Cu7 cuboctahedra that share corners with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra, corners with four equivalent Cu(14)Pr3In2Cu7 cuboctahedra, corners with four equivalent Cu(5)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(13)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, faces with two equivalent In(5)Pr3In2Cu7 cuboctahedra, faces with four equivalent Cu(7)Pr3In3Cu6 cuboctahedra, and faces with four equivalent Cu(8)Pr3In3Cu6 cuboctahedra. In the fourteenth Cu site, Cu(14) is bonded to one Pr(4), two equivalent Pr(1), one Cu(11), one Cu(3), one Cu(4), two equivalent Cu(5), two equivalent Cu(6), and two equivalent In(1) atoms to form CuPr3In2Cu7 cuboctahedra that share corners with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra, corners with four equivalent Cu(13)Pr3In2Cu7 cuboctahedra, corners with four equivalent Cu(8)Pr3In3Cu6 cuboctahedra, edges with two equivalent Cu(14)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra, faces with two equivalent Cu(15)Pr3In2Cu7 cuboctahedra, faces with four equivalent Cu(5)Pr3In2Cu7 cuboctahedra, and faces with four equivalent Cu(6)Pr3In2Cu7 cuboctahedra. In the fifteenth Cu site, Cu(15) is bonded to one Pr(3), two equivalent Pr(2), one Cu(12), one Cu(3), one Cu(4), two equivalent Cu(5), two equivalent Cu(6), and two equivalent In(2) atoms to form CuPr3In2Cu7 cuboctahedra that share corners with two equivalent Cu(8)Pr3In3Cu6 cuboctahedra, corners with four equivalent Cu(7)Pr3In3Cu6 cuboctahedra, corners with four equivalent In(5)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(15)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(7)Pr3In3Cu6 cuboctahedra, faces with two equivalent Cu(14)Pr3In2Cu7 cuboctahedra, faces with four equivalent Cu(5)Pr3In2Cu7 cuboctahedra, and faces with four equivalent Cu(6)Pr3In2Cu7 cuboctahedra. There are five inequivalent In sites. In the first In site, In(1) is bonded in a 14-coordinate geometry to one Pr(1), one Pr(2), two equivalent Pr(4), one Cu(10), one Cu(2), two equivalent Cu(14), two equivalent Cu(4), two equivalent Cu(5), and two equivalent Cu(6) atoms. In the second In site, In(2) is bonded in a 14-coordinate geometry to one Pr(1), one Pr(2), two equivalent Pr(3), one Cu(1), one Cu(9), two equivalent Cu(15), two equivalent Cu(3), two equivalent Cu(5), and two equivalent Cu(6) atoms. In the third In site, In(3) is bonded in a 14-coordinate geometry to one Pr(3), one Pr(4), two equivalent Pr(2), one Cu(12), one Cu(4), two equivalent Cu(2), two equivalent Cu(7), two equivalent Cu(8), and two equivalent In(5) atoms. In the fourth In site, In(4) is bonded in a 14-coordinate geometry to one Pr(3), one Pr(4), two equivalent Pr(1), one Cu(11), one Cu(3), two equivalent Cu(1), two equivalent Cu(13), two equivalent Cu(7), and two equivalent Cu(8) atoms. In the fifth In site, In(5) is bonded to one Pr(2), two equivalent Pr(3), one Cu(1), one Cu(2), one Cu(9), two equivalent Cu(7), two equivalent Cu(8), and two equivalent In(3) atoms to form distorted InPr3In2Cu7 cuboctahedra that share corners with two equivalent Cu(5)Pr3In2Cu7 cuboctahedra, corners with four equivalent Cu(15)Pr3In2Cu7 cuboctahedra, corners with four equivalent Cu(6)Pr3In2Cu7 cuboctahedra, edges with two equivalent Cu(6)Pr3In2Cu7 cuboctahedra, edges with two equivalent In(5)Pr3In2Cu7 cuboctahedra, faces with two equivalent Cu(13)Pr3In2Cu7 cuboctahedra, faces with four equivalent Cu(7)Pr3In3Cu6 cuboctahedra, and faces with four equivalent Cu(8)Pr3In3Cu6 cuboctahedra. is represented by the CIF file [CIF]
data_Pr4In5Cu19
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.136
_cell_length_b   8.490
_cell_length_c   10.748
_cell_angle_alpha   89.565
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   468.596
_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  0.000  0.756  0.937  1.0
  Pr  Pr1  1  0.000  0.255  0.567  1.0
  Pr  Pr2  1  0.500  0.241  0.048  1.0
  Pr  Pr3  1  0.500  0.746  0.444  1.0
  In  In4  1  0.000  0.640  0.639  1.0
  In  In5  1  0.000  0.140  0.861  1.0
  In  In6  1  0.500  0.363  0.370  1.0
  In  In7  1  0.500  0.863  0.138  1.0
  In  In8  1  0.000  0.312  0.242  1.0
  Cu  Cu9  1  0.000  0.046  0.102  1.0
  Cu  Cu10  1  0.000  0.567  0.397  1.0
  Cu  Cu11  1  0.500  0.941  0.892  1.0
  Cu  Cu12  1  0.500  0.444  0.609  1.0
  Cu  Cu13  1  0.251  0.934  0.689  1.0
  Cu  Cu14  1  0.748  0.434  0.811  1.0
  Cu  Cu15  1  0.744  0.056  0.314  1.0
  Cu  Cu16  1  0.255  0.577  0.187  1.0
  Cu  Cu17  1  0.256  0.056  0.314  1.0
  Cu  Cu18  1  0.745  0.577  0.187  1.0
  Cu  Cu19  1  0.749  0.934  0.689  1.0
  Cu  Cu20  1  0.252  0.434  0.811  1.0
  Cu  Cu21  1  0.000  0.422  0.009  1.0
  Cu  Cu22  1  0.000  0.917  0.486  1.0
  Cu  Cu23  1  0.500  0.581  0.985  1.0
  Cu  Cu24  1  0.500  0.081  0.516  1.0
  Cu  Cu25  1  0.000  0.815  0.258  1.0
  Cu  Cu26  1  0.500  0.684  0.757  1.0
  Cu  Cu27  1  0.500  0.183  0.742  1.0
[/CIF]
.