The structure described by Yb2Mn17 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 18-coordinate geometry to two equivalent Mn(4), two equivalent Mn(5), two equivalent Mn(6), four equivalent Mn(8), and eight equivalent Mn(7) atoms. In the second Yb site, Yb(2) is bonded in a 20-coordinate geometry to two equivalent Mn(1), two equivalent Mn(3), two equivalent Mn(4), two equivalent Mn(5), two equivalent Mn(6), two equivalent Mn(8), four equivalent Mn(2), and four equivalent Mn(7) atoms. There are eight inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 14-coordinate geometry to one Yb(2), one Mn(1), one Mn(3), one Mn(8), two equivalent Mn(2), two equivalent Mn(4), two equivalent Mn(5), two equivalent Mn(6), and two equivalent Mn(7) atoms. In the second Mn site, Mn(2) is bonded to two equivalent Yb(2), two equivalent Mn(1), two equivalent Mn(4), two equivalent Mn(6), two equivalent Mn(7), and two equivalent Mn(8) atoms to form MnYb2Mn10 cuboctahedra that share corners with two equivalent Mn(2)Yb2Mn10 cuboctahedra, corners with two equivalent Mn(3)Yb2Mn10 cuboctahedra, corners with two equivalent Mn(4)Yb2Mn10 cuboctahedra, corners with two equivalent Mn(8)Yb3Mn9 cuboctahedra, corners with four equivalent Mn(5)Yb2Mn10 cuboctahedra, edges with two equivalent Mn(5)Yb2Mn10 cuboctahedra, edges with two equivalent Mn(8)Yb3Mn9 cuboctahedra, faces with two equivalent Mn(3)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(5)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(8)Yb3Mn9 cuboctahedra, faces with four equivalent Mn(2)Yb2Mn10 cuboctahedra, and faces with four equivalent Mn(4)Yb2Mn10 cuboctahedra. In the third Mn site, Mn(3) is bonded to two equivalent Yb(2), two equivalent Mn(1), four equivalent Mn(5), and four equivalent Mn(7) atoms to form MnYb2Mn10 cuboctahedra that share corners with four equivalent Mn(2)Yb2Mn10 cuboctahedra, corners with four equivalent Mn(4)Yb2Mn10 cuboctahedra, corners with six equivalent Mn(8)Yb3Mn9 cuboctahedra, edges with two equivalent Mn(8)Yb3Mn9 cuboctahedra, edges with four equivalent Mn(4)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(3)Yb2Mn10 cuboctahedra, faces with four equivalent Mn(2)Yb2Mn10 cuboctahedra, and faces with four equivalent Mn(5)Yb2Mn10 cuboctahedra. In the fourth Mn site, Mn(4) is bonded to one Yb(1), one Yb(2), one Mn(4), one Mn(6), two equivalent Mn(1), two equivalent Mn(2), two equivalent Mn(7), and two equivalent Mn(8) atoms to form distorted MnYb2Mn10 cuboctahedra that share corners with two equivalent Mn(2)Yb2Mn10 cuboctahedra, corners with two equivalent Mn(3)Yb2Mn10 cuboctahedra, corners with two equivalent Mn(8)Yb3Mn9 cuboctahedra, corners with three equivalent Mn(4)Yb2Mn10 cuboctahedra, corners with four equivalent Mn(5)Yb2Mn10 cuboctahedra,  an edgeedge with one Mn(5)Yb2Mn10 cuboctahedra, edges with two equivalent Mn(3)Yb2Mn10 cuboctahedra,  a faceface with one Mn(4)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(5)Yb2Mn10 cuboctahedra, faces with four equivalent Mn(2)Yb2Mn10 cuboctahedra, and faces with four equivalent Mn(8)Yb3Mn9 cuboctahedra. In the fifth Mn site, Mn(5) is bonded to one Yb(1), one Yb(2), one Mn(5), one Mn(6), two equivalent Mn(1), two equivalent Mn(3), and four equivalent Mn(7) atoms to form distorted MnYb2Mn10 cuboctahedra that share corners with three equivalent Mn(5)Yb2Mn10 cuboctahedra, corners with four equivalent Mn(2)Yb2Mn10 cuboctahedra, corners with four equivalent Mn(4)Yb2Mn10 cuboctahedra, corners with four equivalent Mn(8)Yb3Mn9 cuboctahedra,  an edgeedge with one Mn(4)Yb2Mn10 cuboctahedra, edges with two equivalent Mn(2)Yb2Mn10 cuboctahedra, edges with two equivalent Mn(8)Yb3Mn9 cuboctahedra, faces with two equivalent Mn(2)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(3)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(4)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(8)Yb3Mn9 cuboctahedra, and faces with three equivalent Mn(5)Yb2Mn10 cuboctahedra. In the sixth Mn site, Mn(6) is bonded in a 12-coordinate geometry to one Yb(1), one Yb(2), one Mn(4), one Mn(5), two equivalent Mn(1), two equivalent Mn(2), two equivalent Mn(7), and two equivalent Mn(8) atoms. In the seventh Mn site, Mn(7) is bonded in a 12-coordinate geometry to one Yb(2), two equivalent Yb(1), one Mn(1), one Mn(2), one Mn(3), one Mn(4), one Mn(6), one Mn(7), one Mn(8), and two equivalent Mn(5) atoms. In the eighth Mn site, Mn(8) is bonded to one Yb(2), two equivalent Yb(1), one Mn(1), two equivalent Mn(2), two equivalent Mn(4), two equivalent Mn(6), and two equivalent Mn(7) atoms to form distorted MnYb3Mn9 cuboctahedra that share corners with two equivalent Mn(2)Yb2Mn10 cuboctahedra, corners with two equivalent Mn(4)Yb2Mn10 cuboctahedra, corners with three equivalent Mn(3)Yb2Mn10 cuboctahedra, corners with four equivalent Mn(5)Yb2Mn10 cuboctahedra, corners with four equivalent Mn(8)Yb3Mn9 cuboctahedra,  an edgeedge with one Mn(3)Yb2Mn10 cuboctahedra,  an edgeedge with one Mn(8)Yb3Mn9 cuboctahedra, edges with two equivalent Mn(2)Yb2Mn10 cuboctahedra, edges with two equivalent Mn(5)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(2)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(5)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(8)Yb3Mn9 cuboctahedra, and faces with four equivalent Mn(4)Yb2Mn10 cuboctahedra. is represented by the CIF card [CIF]
data_Yb2Mn17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.215
_cell_length_b   8.243
_cell_length_c   8.478
_cell_angle_alpha   60.914
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   501.732
_cell_formula_units_Z   2
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
  Yb  Yb0  1  0.250  0.996  0.009  1.0
  Yb  Yb1  1  0.750  0.004  0.991  1.0
  Yb  Yb2  1  0.750  0.665  0.671  1.0
  Yb  Yb3  1  0.250  0.335  0.329  1.0
  Mn  Mn4  1  0.388  0.666  0.668  1.0
  Mn  Mn5  1  0.612  0.334  0.332  1.0
  Mn  Mn6  1  0.888  0.334  0.332  1.0
  Mn  Mn7  1  0.112  0.666  0.668  1.0
  Mn  Mn8  1  0.500  0.000  0.500  1.0
  Mn  Mn9  1  0.500  0.500  0.000  1.0
  Mn  Mn10  1  0.500  0.500  0.500  1.0
  Mn  Mn11  1  0.000  0.000  0.500  1.0
  Mn  Mn12  1  0.000  0.500  0.000  1.0
  Mn  Mn13  1  0.000  0.500  0.500  1.0
  Mn  Mn14  1  0.250  0.953  0.383  1.0
  Mn  Mn15  1  0.250  0.679  0.946  1.0
  Mn  Mn16  1  0.250  0.356  0.673  1.0
  Mn  Mn17  1  0.250  0.970  0.673  1.0
  Mn  Mn18  1  0.250  0.664  0.383  1.0
  Mn  Mn19  1  0.250  0.376  0.946  1.0
  Mn  Mn20  1  0.750  0.047  0.617  1.0
  Mn  Mn21  1  0.750  0.321  0.054  1.0
  Mn  Mn22  1  0.750  0.644  0.327  1.0
  Mn  Mn23  1  0.750  0.030  0.327  1.0
  Mn  Mn24  1  0.750  0.336  0.617  1.0
  Mn  Mn25  1  0.750  0.624  0.054  1.0
  Mn  Mn26  1  0.527  0.339  0.826  1.0
  Mn  Mn27  1  0.517  0.829  0.342  1.0
  Mn  Mn28  1  0.527  0.835  0.826  1.0
  Mn  Mn29  1  0.473  0.661  0.174  1.0
  Mn  Mn30  1  0.483  0.171  0.658  1.0
  Mn  Mn31  1  0.473  0.165  0.174  1.0
  Mn  Mn32  1  0.027  0.661  0.174  1.0
  Mn  Mn33  1  0.017  0.171  0.658  1.0
  Mn  Mn34  1  0.027  0.165  0.174  1.0
  Mn  Mn35  1  0.973  0.339  0.826  1.0
  Mn  Mn36  1  0.983  0.829  0.342  1.0
  Mn  Mn37  1  0.973  0.835  0.826  1.0
[/CIF]
.
The structure described by Yb2Mn17 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Yb sites. In the first Yb site, Yb(1) is bonded in a 18-coordinate geometry to two equivalent Mn(4), two equivalent Mn(5), two equivalent Mn(6), four equivalent Mn(8), and eight equivalent Mn(7) atoms. In the second Yb site, Yb(2) is bonded in a 20-coordinate geometry to two equivalent Mn(1), two equivalent Mn(3), two equivalent Mn(4), two equivalent Mn(5), two equivalent Mn(6), two equivalent Mn(8), four equivalent Mn(2), and four equivalent Mn(7) atoms. There are eight inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 14-coordinate geometry to one Yb(2), one Mn(1), one Mn(3), one Mn(8), two equivalent Mn(2), two equivalent Mn(4), two equivalent Mn(5), two equivalent Mn(6), and two equivalent Mn(7) atoms. In the second Mn site, Mn(2) is bonded to two equivalent Yb(2), two equivalent Mn(1), two equivalent Mn(4), two equivalent Mn(6), two equivalent Mn(7), and two equivalent Mn(8) atoms to form MnYb2Mn10 cuboctahedra that share corners with two equivalent Mn(2)Yb2Mn10 cuboctahedra, corners with two equivalent Mn(3)Yb2Mn10 cuboctahedra, corners with two equivalent Mn(4)Yb2Mn10 cuboctahedra, corners with two equivalent Mn(8)Yb3Mn9 cuboctahedra, corners with four equivalent Mn(5)Yb2Mn10 cuboctahedra, edges with two equivalent Mn(5)Yb2Mn10 cuboctahedra, edges with two equivalent Mn(8)Yb3Mn9 cuboctahedra, faces with two equivalent Mn(3)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(5)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(8)Yb3Mn9 cuboctahedra, faces with four equivalent Mn(2)Yb2Mn10 cuboctahedra, and faces with four equivalent Mn(4)Yb2Mn10 cuboctahedra. In the third Mn site, Mn(3) is bonded to two equivalent Yb(2), two equivalent Mn(1), four equivalent Mn(5), and four equivalent Mn(7) atoms to form MnYb2Mn10 cuboctahedra that share corners with four equivalent Mn(2)Yb2Mn10 cuboctahedra, corners with four equivalent Mn(4)Yb2Mn10 cuboctahedra, corners with six equivalent Mn(8)Yb3Mn9 cuboctahedra, edges with two equivalent Mn(8)Yb3Mn9 cuboctahedra, edges with four equivalent Mn(4)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(3)Yb2Mn10 cuboctahedra, faces with four equivalent Mn(2)Yb2Mn10 cuboctahedra, and faces with four equivalent Mn(5)Yb2Mn10 cuboctahedra. In the fourth Mn site, Mn(4) is bonded to one Yb(1), one Yb(2), one Mn(4), one Mn(6), two equivalent Mn(1), two equivalent Mn(2), two equivalent Mn(7), and two equivalent Mn(8) atoms to form distorted MnYb2Mn10 cuboctahedra that share corners with two equivalent Mn(2)Yb2Mn10 cuboctahedra, corners with two equivalent Mn(3)Yb2Mn10 cuboctahedra, corners with two equivalent Mn(8)Yb3Mn9 cuboctahedra, corners with three equivalent Mn(4)Yb2Mn10 cuboctahedra, corners with four equivalent Mn(5)Yb2Mn10 cuboctahedra,  an edgeedge with one Mn(5)Yb2Mn10 cuboctahedra, edges with two equivalent Mn(3)Yb2Mn10 cuboctahedra,  a faceface with one Mn(4)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(5)Yb2Mn10 cuboctahedra, faces with four equivalent Mn(2)Yb2Mn10 cuboctahedra, and faces with four equivalent Mn(8)Yb3Mn9 cuboctahedra. In the fifth Mn site, Mn(5) is bonded to one Yb(1), one Yb(2), one Mn(5), one Mn(6), two equivalent Mn(1), two equivalent Mn(3), and four equivalent Mn(7) atoms to form distorted MnYb2Mn10 cuboctahedra that share corners with three equivalent Mn(5)Yb2Mn10 cuboctahedra, corners with four equivalent Mn(2)Yb2Mn10 cuboctahedra, corners with four equivalent Mn(4)Yb2Mn10 cuboctahedra, corners with four equivalent Mn(8)Yb3Mn9 cuboctahedra,  an edgeedge with one Mn(4)Yb2Mn10 cuboctahedra, edges with two equivalent Mn(2)Yb2Mn10 cuboctahedra, edges with two equivalent Mn(8)Yb3Mn9 cuboctahedra, faces with two equivalent Mn(2)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(3)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(4)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(8)Yb3Mn9 cuboctahedra, and faces with three equivalent Mn(5)Yb2Mn10 cuboctahedra. In the sixth Mn site, Mn(6) is bonded in a 12-coordinate geometry to one Yb(1), one Yb(2), one Mn(4), one Mn(5), two equivalent Mn(1), two equivalent Mn(2), two equivalent Mn(7), and two equivalent Mn(8) atoms. In the seventh Mn site, Mn(7) is bonded in a 12-coordinate geometry to one Yb(2), two equivalent Yb(1), one Mn(1), one Mn(2), one Mn(3), one Mn(4), one Mn(6), one Mn(7), one Mn(8), and two equivalent Mn(5) atoms. In the eighth Mn site, Mn(8) is bonded to one Yb(2), two equivalent Yb(1), one Mn(1), two equivalent Mn(2), two equivalent Mn(4), two equivalent Mn(6), and two equivalent Mn(7) atoms to form distorted MnYb3Mn9 cuboctahedra that share corners with two equivalent Mn(2)Yb2Mn10 cuboctahedra, corners with two equivalent Mn(4)Yb2Mn10 cuboctahedra, corners with three equivalent Mn(3)Yb2Mn10 cuboctahedra, corners with four equivalent Mn(5)Yb2Mn10 cuboctahedra, corners with four equivalent Mn(8)Yb3Mn9 cuboctahedra,  an edgeedge with one Mn(3)Yb2Mn10 cuboctahedra,  an edgeedge with one Mn(8)Yb3Mn9 cuboctahedra, edges with two equivalent Mn(2)Yb2Mn10 cuboctahedra, edges with two equivalent Mn(5)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(2)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(5)Yb2Mn10 cuboctahedra, faces with two equivalent Mn(8)Yb3Mn9 cuboctahedra, and faces with four equivalent Mn(4)Yb2Mn10 cuboctahedra. is represented by the CIF card [CIF]
data_Yb2Mn17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.215
_cell_length_b   8.243
_cell_length_c   8.478
_cell_angle_alpha   60.914
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   501.732
_cell_formula_units_Z   2
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
  Yb  Yb0  1  0.250  0.996  0.009  1.0
  Yb  Yb1  1  0.750  0.004  0.991  1.0
  Yb  Yb2  1  0.750  0.665  0.671  1.0
  Yb  Yb3  1  0.250  0.335  0.329  1.0
  Mn  Mn4  1  0.388  0.666  0.668  1.0
  Mn  Mn5  1  0.612  0.334  0.332  1.0
  Mn  Mn6  1  0.888  0.334  0.332  1.0
  Mn  Mn7  1  0.112  0.666  0.668  1.0
  Mn  Mn8  1  0.500  0.000  0.500  1.0
  Mn  Mn9  1  0.500  0.500  0.000  1.0
  Mn  Mn10  1  0.500  0.500  0.500  1.0
  Mn  Mn11  1  0.000  0.000  0.500  1.0
  Mn  Mn12  1  0.000  0.500  0.000  1.0
  Mn  Mn13  1  0.000  0.500  0.500  1.0
  Mn  Mn14  1  0.250  0.953  0.383  1.0
  Mn  Mn15  1  0.250  0.679  0.946  1.0
  Mn  Mn16  1  0.250  0.356  0.673  1.0
  Mn  Mn17  1  0.250  0.970  0.673  1.0
  Mn  Mn18  1  0.250  0.664  0.383  1.0
  Mn  Mn19  1  0.250  0.376  0.946  1.0
  Mn  Mn20  1  0.750  0.047  0.617  1.0
  Mn  Mn21  1  0.750  0.321  0.054  1.0
  Mn  Mn22  1  0.750  0.644  0.327  1.0
  Mn  Mn23  1  0.750  0.030  0.327  1.0
  Mn  Mn24  1  0.750  0.336  0.617  1.0
  Mn  Mn25  1  0.750  0.624  0.054  1.0
  Mn  Mn26  1  0.527  0.339  0.826  1.0
  Mn  Mn27  1  0.517  0.829  0.342  1.0
  Mn  Mn28  1  0.527  0.835  0.826  1.0
  Mn  Mn29  1  0.473  0.661  0.174  1.0
  Mn  Mn30  1  0.483  0.171  0.658  1.0
  Mn  Mn31  1  0.473  0.165  0.174  1.0
  Mn  Mn32  1  0.027  0.661  0.174  1.0
  Mn  Mn33  1  0.017  0.171  0.658  1.0
  Mn  Mn34  1  0.027  0.165  0.174  1.0
  Mn  Mn35  1  0.973  0.339  0.826  1.0
  Mn  Mn36  1  0.983  0.829  0.342  1.0
  Mn  Mn37  1  0.973  0.835  0.826  1.0
[/CIF]
.