The compound described by PrCrB4 crystallizes in the orthorhombic Pbam space group. Pr(1) is bonded in a 14-coordinate geometry to two equivalent B(3), four equivalent B(1), four equivalent B(2), and four equivalent B(4) atoms. Cr(1) is bonded in a 11-coordinate geometry to one Cr(1), two equivalent B(1), two equivalent B(2), two equivalent B(4), and four equivalent B(3) atoms. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 9-coordinate geometry to four equivalent Pr(1), two equivalent Cr(1), one B(2), and two equivalent B(4) atoms. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Pr(1), two equivalent Cr(1), one B(1), one B(2), and one B(3) atom. In the third B site, B(3) is bonded in a 9-coordinate geometry to two equivalent Pr(1), four equivalent Cr(1), one B(2), one B(3), and one B(4) atom. In the fourth B site, B(4) is bonded in a 9-coordinate geometry to four equivalent Pr(1), two equivalent Cr(1), one B(3), and two equivalent B(1) atoms. is represented by the CIF file [CIF]
data_PrCrB4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.571
_cell_length_b   6.056
_cell_length_c   11.716
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   253.371
_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  0.000  0.624  0.348  1.0
  Pr  Pr1  1  0.000  0.376  0.652  1.0
  Pr  Pr2  1  0.000  0.124  0.152  1.0
  Pr  Pr3  1  0.000  0.876  0.848  1.0
  Cr  Cr4  1  0.000  0.619  0.077  1.0
  Cr  Cr5  1  0.000  0.381  0.923  1.0
  Cr  Cr6  1  0.000  0.119  0.423  1.0
  Cr  Cr7  1  0.000  0.881  0.577  1.0
  B  B8  1  0.500  0.776  0.181  1.0
  B  B9  1  0.500  0.224  0.819  1.0
  B  B10  1  0.500  0.276  0.319  1.0
  B  B11  1  0.500  0.724  0.681  1.0
  B  B12  1  0.500  0.858  0.033  1.0
  B  B13  1  0.500  0.142  0.967  1.0
  B  B14  1  0.500  0.358  0.467  1.0
  B  B15  1  0.500  0.642  0.533  1.0
  B  B16  1  0.500  0.889  0.455  1.0
  B  B17  1  0.500  0.111  0.545  1.0
  B  B18  1  0.500  0.389  0.045  1.0
  B  B19  1  0.500  0.611  0.955  1.0
  B  B20  1  0.500  0.978  0.312  1.0
  B  B21  1  0.500  0.022  0.688  1.0
  B  B22  1  0.500  0.478  0.188  1.0
  B  B23  1  0.500  0.522  0.812  1.0
[/CIF]
.
The compound described by PrCrB4 crystallizes in the orthorhombic Pbam space group. Pr(1) is bonded in a 14-coordinate geometry to two equivalent B(3), four equivalent B(1), four equivalent B(2), and four equivalent B(4) atoms. Cr(1) is bonded in a 11-coordinate geometry to one Cr(1), two equivalent B(1), two equivalent B(2), two equivalent B(4), and four equivalent B(3) atoms. There are four inequivalent B sites. In the first B site, B(1) is bonded in a 9-coordinate geometry to four equivalent Pr(1), two equivalent Cr(1), one B(2), and two equivalent B(4) atoms. In the second B site, B(2) is bonded in a 9-coordinate geometry to four equivalent Pr(1), two equivalent Cr(1), one B(1), one B(2), and one B(3) atom. In the third B site, B(3) is bonded in a 9-coordinate geometry to two equivalent Pr(1), four equivalent Cr(1), one B(2), one B(3), and one B(4) atom. In the fourth B site, B(4) is bonded in a 9-coordinate geometry to four equivalent Pr(1), two equivalent Cr(1), one B(3), and two equivalent B(1) atoms. is represented by the CIF file [CIF]
data_PrCrB4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.571
_cell_length_b   6.056
_cell_length_c   11.716
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   253.371
_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  0.000  0.624  0.348  1.0
  Pr  Pr1  1  0.000  0.376  0.652  1.0
  Pr  Pr2  1  0.000  0.124  0.152  1.0
  Pr  Pr3  1  0.000  0.876  0.848  1.0
  Cr  Cr4  1  0.000  0.619  0.077  1.0
  Cr  Cr5  1  0.000  0.381  0.923  1.0
  Cr  Cr6  1  0.000  0.119  0.423  1.0
  Cr  Cr7  1  0.000  0.881  0.577  1.0
  B  B8  1  0.500  0.776  0.181  1.0
  B  B9  1  0.500  0.224  0.819  1.0
  B  B10  1  0.500  0.276  0.319  1.0
  B  B11  1  0.500  0.724  0.681  1.0
  B  B12  1  0.500  0.858  0.033  1.0
  B  B13  1  0.500  0.142  0.967  1.0
  B  B14  1  0.500  0.358  0.467  1.0
  B  B15  1  0.500  0.642  0.533  1.0
  B  B16  1  0.500  0.889  0.455  1.0
  B  B17  1  0.500  0.111  0.545  1.0
  B  B18  1  0.500  0.389  0.045  1.0
  B  B19  1  0.500  0.611  0.955  1.0
  B  B20  1  0.500  0.978  0.312  1.0
  B  B21  1  0.500  0.022  0.688  1.0
  B  B22  1  0.500  0.478  0.188  1.0
  B  B23  1  0.500  0.522  0.812  1.0
[/CIF]
.