The compound described by PrFe11Ti crystallizes in the orthorhombic Imm2 space group. Pr(1) is bonded in a 20-coordinate geometry to one Ti(1), one Fe(5), two equivalent Fe(2), two equivalent Fe(3), two equivalent Fe(6), four equivalent Fe(4), and eight equivalent Fe(1) atoms. Ti(1) is bonded in a 14-coordinate geometry to one Pr(1), one Fe(5), two equivalent Fe(3), two equivalent Fe(4), four equivalent Fe(1), and four equivalent Fe(6) atoms. There are six inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Pr(1), one Ti(1), one Fe(2), one Fe(3), one Fe(5), two equivalent Fe(1), two equivalent Fe(4), and two equivalent Fe(6) atoms to form a mixture of distorted edge, face, and corner-sharing FePr2TiFe9 cuboctahedra. In the second Fe site, Fe(2) is bonded in a 12-coordinate geometry to two equivalent Pr(1), two equivalent Fe(4), two equivalent Fe(5), two equivalent Fe(6), and four equivalent Fe(1) atoms. In the third Fe site, Fe(3) is bonded in a 12-coordinate geometry to two equivalent Pr(1), two equivalent Ti(1), two equivalent Fe(4), two equivalent Fe(6), and four equivalent Fe(1) atoms. In the fourth Fe site, Fe(4) is bonded in a 12-coordinate geometry to two equivalent Pr(1), one Ti(1), one Fe(2), one Fe(3), one Fe(5), two equivalent Fe(6), and four equivalent Fe(1) atoms. In the fifth Fe site, Fe(5) is bonded in a 1-coordinate geometry to one Pr(1), one Ti(1), two equivalent Fe(2), two equivalent Fe(4), four equivalent Fe(1), and four equivalent Fe(6) atoms. In the sixth Fe site, Fe(6) is bonded in a 14-coordinate geometry to one Pr(1), two equivalent Ti(1), one Fe(2), one Fe(3), one Fe(6), two equivalent Fe(4), two equivalent Fe(5), and four equivalent Fe(1) atoms. is represented by the CIF file [CIF]
data_PrTiFe11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.690
_cell_length_b   6.519
_cell_length_c   6.519
_cell_angle_alpha   97.026
_cell_angle_beta   111.084
_cell_angle_gamma   68.916
_symmetry_Int_Tables_number   1
_cell_volume   173.527
_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  0.006  0.994  0.006  1.0
  Ti  Ti1  1  0.632  0.368  0.632  1.0
  Fe  Fe2  1  0.500  0.998  0.499  1.0
  Fe  Fe3  1  0.001  0.998  0.499  1.0
  Fe  Fe4  1  0.500  0.501  0.002  1.0
  Fe  Fe5  1  0.001  0.501  0.002  1.0
  Fe  Fe6  1  0.734  0.766  0.234  1.0
  Fe  Fe7  1  0.270  0.230  0.770  1.0
  Fe  Fe8  1  0.499  0.773  0.770  1.0
  Fe  Fe9  1  0.499  0.230  0.227  1.0
  Fe  Fe10  1  0.357  0.643  0.357  1.0
  Fe  Fe11  1  1.000  0.359  0.358  1.0
  Fe  Fe12  1  1.000  0.642  0.641  1.0
[/CIF]
.
The compound described by PrFe11Ti crystallizes in the orthorhombic Imm2 space group. Pr(1) is bonded in a 20-coordinate geometry to one Ti(1), one Fe(5), two equivalent Fe(2), two equivalent Fe(3), two equivalent Fe(6), four equivalent Fe(4), and eight equivalent Fe(1) atoms. Ti(1) is bonded in a 14-coordinate geometry to one Pr(1), one Fe(5), two equivalent Fe(3), two equivalent Fe(4), four equivalent Fe(1), and four equivalent Fe(6) atoms. There are six inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to two equivalent Pr(1), one Ti(1), one Fe(2), one Fe(3), one Fe(5), two equivalent Fe(1), two equivalent Fe(4), and two equivalent Fe(6) atoms to form a mixture of distorted edge, face, and corner-sharing FePr2TiFe9 cuboctahedra. In the second Fe site, Fe(2) is bonded in a 12-coordinate geometry to two equivalent Pr(1), two equivalent Fe(4), two equivalent Fe(5), two equivalent Fe(6), and four equivalent Fe(1) atoms. In the third Fe site, Fe(3) is bonded in a 12-coordinate geometry to two equivalent Pr(1), two equivalent Ti(1), two equivalent Fe(4), two equivalent Fe(6), and four equivalent Fe(1) atoms. In the fourth Fe site, Fe(4) is bonded in a 12-coordinate geometry to two equivalent Pr(1), one Ti(1), one Fe(2), one Fe(3), one Fe(5), two equivalent Fe(6), and four equivalent Fe(1) atoms. In the fifth Fe site, Fe(5) is bonded in a 1-coordinate geometry to one Pr(1), one Ti(1), two equivalent Fe(2), two equivalent Fe(4), four equivalent Fe(1), and four equivalent Fe(6) atoms. In the sixth Fe site, Fe(6) is bonded in a 14-coordinate geometry to one Pr(1), two equivalent Ti(1), one Fe(2), one Fe(3), one Fe(6), two equivalent Fe(4), two equivalent Fe(5), and four equivalent Fe(1) atoms. is represented by the CIF file [CIF]
data_PrTiFe11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.690
_cell_length_b   6.519
_cell_length_c   6.519
_cell_angle_alpha   97.026
_cell_angle_beta   111.084
_cell_angle_gamma   68.916
_symmetry_Int_Tables_number   1
_cell_volume   173.527
_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  0.006  0.994  0.006  1.0
  Ti  Ti1  1  0.632  0.368  0.632  1.0
  Fe  Fe2  1  0.500  0.998  0.499  1.0
  Fe  Fe3  1  0.001  0.998  0.499  1.0
  Fe  Fe4  1  0.500  0.501  0.002  1.0
  Fe  Fe5  1  0.001  0.501  0.002  1.0
  Fe  Fe6  1  0.734  0.766  0.234  1.0
  Fe  Fe7  1  0.270  0.230  0.770  1.0
  Fe  Fe8  1  0.499  0.773  0.770  1.0
  Fe  Fe9  1  0.499  0.230  0.227  1.0
  Fe  Fe10  1  0.357  0.643  0.357  1.0
  Fe  Fe11  1  1.000  0.359  0.358  1.0
  Fe  Fe12  1  1.000  0.642  0.641  1.0
[/CIF]
.