The material described by Al10Ce2Mn7 crystallizes in the monoclinic Cm space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 19-coordinate geometry to one Mn(2), one Mn(3), two equivalent Mn(1), two equivalent Mn(5), four equivalent Mn(4), one Al(1), two equivalent Al(3), two equivalent Al(4), two equivalent Al(5), and two equivalent Al(6) atoms. In the second Ce site, Ce(2) is bonded in a 13-coordinate geometry to one Mn(5), two equivalent Mn(3), two equivalent Mn(4), one Al(2), two equivalent Al(3), two equivalent Al(4), two equivalent Al(5), and four equivalent Al(6) atoms. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 10-coordinate geometry to one Ce(1), one Mn(3), one Mn(4), one Mn(5), one Al(1), one Al(2), one Al(3), one Al(5), one Al(6), and two equivalent Al(4) atoms. In the second Mn site, Mn(2) is bonded in a 10-coordinate geometry to one Ce(1), two equivalent Mn(4), one Al(1), one Al(2), two equivalent Al(3), two equivalent Al(5), and two equivalent Al(6) atoms. In the third Mn site, Mn(3) is bonded in a 12-coordinate geometry to one Ce(1), two equivalent Ce(2), two equivalent Mn(1), two equivalent Mn(4), one Al(2), two equivalent Al(3), and two equivalent Al(4) atoms. In the fourth Mn site, Mn(4) is bonded to one Ce(2), two equivalent Ce(1), one Mn(1), one Mn(2), one Mn(3), one Al(1), one Al(4), one Al(5), one Al(6), and two equivalent Al(3) atoms to form distorted MnCe3Mn3Al6 cuboctahedra that share corners with two equivalent Mn(4)Ce3Mn3Al6 cuboctahedra, corners with five equivalent Al(6)Ce3Mn4Al5 cuboctahedra,  an edgeedge with one Al(6)Ce3Mn4Al5 cuboctahedra, edges with two equivalent Mn(5)Ce3Mn2Al7 cuboctahedra, edges with two equivalent Mn(4)Ce3Mn3Al6 cuboctahedra, faces with two equivalent Mn(5)Ce3Mn2Al7 cuboctahedra, faces with two equivalent Mn(4)Ce3Mn3Al6 cuboctahedra, and faces with two equivalent Al(6)Ce3Mn4Al5 cuboctahedra. In the fifth Mn site, Mn(5) is bonded to one Ce(2), two equivalent Ce(1), two equivalent Mn(1), one Al(1), two equivalent Al(4), two equivalent Al(5), and two equivalent Al(6) atoms to form distorted MnCe3Mn2Al7 cuboctahedra that share corners with two equivalent Mn(5)Ce3Mn2Al7 cuboctahedra, corners with six equivalent Al(6)Ce3Mn4Al5 cuboctahedra, edges with four equivalent Mn(4)Ce3Mn3Al6 cuboctahedra, faces with two equivalent Al(6)Ce3Mn4Al5 cuboctahedra, and faces with four equivalent Mn(4)Ce3Mn3Al6 cuboctahedra. There are six inequivalent Al sites. In the first Al site, Al(1) is bonded in a 8-coordinate geometry to one Ce(1), one Mn(2), one Mn(5), two equivalent Mn(1), two equivalent Mn(4), one Al(2), two equivalent Al(3), and two equivalent Al(5) atoms. In the second Al site, Al(2) is bonded in a 8-coordinate geometry to one Ce(2), one Mn(2), one Mn(3), two equivalent Mn(1), one Al(1), two equivalent Al(3), two equivalent Al(5), and two equivalent Al(6) atoms. In the third Al site, Al(3) is bonded in a 12-coordinate geometry to one Ce(1), one Ce(2), one Mn(1), one Mn(2), one Mn(3), two equivalent Mn(4), one Al(1), one Al(2), one Al(3), one Al(4), and one Al(6) atom. In the fourth Al site, Al(4) is bonded in a 10-coordinate geometry to one Ce(1), one Ce(2), one Mn(3), one Mn(4), one Mn(5), two equivalent Mn(1), one Al(3), one Al(5), and one Al(6) atom. In the fifth Al site, Al(5) is bonded in a 12-coordinate geometry to one Ce(1), one Ce(2), one Mn(1), one Mn(2), one Mn(4), one Mn(5), one Al(1), one Al(2), one Al(4), one Al(5), and two equivalent Al(6) atoms. In the sixth Al site, Al(6) is bonded to one Ce(1), two equivalent Ce(2), one Mn(1), one Mn(2), one Mn(4), one Mn(5), one Al(2), one Al(3), one Al(4), and two equivalent Al(5) atoms to form distorted AlCe3Mn4Al5 cuboctahedra that share corners with two equivalent Al(6)Ce3Mn4Al5 cuboctahedra, corners with three equivalent Mn(5)Ce3Mn2Al7 cuboctahedra, corners with five equivalent Mn(4)Ce3Mn3Al6 cuboctahedra,  an edgeedge with one Mn(4)Ce3Mn3Al6 cuboctahedra, edges with two equivalent Al(6)Ce3Mn4Al5 cuboctahedra,  a faceface with one Mn(5)Ce3Mn2Al7 cuboctahedra, faces with two equivalent Mn(4)Ce3Mn3Al6 cuboctahedra, and faces with two equivalent Al(6)Ce3Mn4Al5 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ce2Mn7Al10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.697
_cell_length_b   6.700
_cell_length_c   6.697
_cell_angle_alpha   82.943
_cell_angle_beta   83.476
_cell_angle_gamma   82.943
_symmetry_Int_Tables_number   1
_cell_volume   294.421
_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
  Ce  Ce0  1  0.655  0.658  0.655  1.0
  Ce  Ce1  1  0.351  0.359  0.351  1.0
  Mn  Mn2  1  0.994  0.996  0.508  1.0
  Mn  Mn3  1  0.996  0.505  0.996  1.0
  Mn  Mn4  1  0.508  0.996  0.994  1.0
  Mn  Mn5  1  0.340  0.841  0.340  1.0
  Mn  Mn6  1  0.142  0.661  0.662  1.0
  Mn  Mn7  1  0.662  0.661  0.142  1.0
  Mn  Mn8  1  0.660  0.145  0.660  1.0
  Al  Al9  1  0.891  0.892  0.891  1.0
  Al  Al10  1  0.117  0.107  0.117  1.0
  Al  Al11  1  0.302  0.705  0.001  1.0
  Al  Al12  1  0.686  0.990  0.308  1.0
  Al  Al13  1  0.995  0.300  0.702  1.0
  Al  Al14  1  0.308  0.990  0.686  1.0
  Al  Al15  1  0.001  0.705  0.302  1.0
  Al  Al16  1  0.702  0.300  0.995  1.0
  Al  Al17  1  0.844  0.345  0.345  1.0
  Al  Al18  1  0.345  0.345  0.844  1.0
[/CIF]
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The material described by Al10Ce2Mn7 crystallizes in the monoclinic Cm space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 19-coordinate geometry to one Mn(2), one Mn(3), two equivalent Mn(1), two equivalent Mn(5), four equivalent Mn(4), one Al(1), two equivalent Al(3), two equivalent Al(4), two equivalent Al(5), and two equivalent Al(6) atoms. In the second Ce site, Ce(2) is bonded in a 13-coordinate geometry to one Mn(5), two equivalent Mn(3), two equivalent Mn(4), one Al(2), two equivalent Al(3), two equivalent Al(4), two equivalent Al(5), and four equivalent Al(6) atoms. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 10-coordinate geometry to one Ce(1), one Mn(3), one Mn(4), one Mn(5), one Al(1), one Al(2), one Al(3), one Al(5), one Al(6), and two equivalent Al(4) atoms. In the second Mn site, Mn(2) is bonded in a 10-coordinate geometry to one Ce(1), two equivalent Mn(4), one Al(1), one Al(2), two equivalent Al(3), two equivalent Al(5), and two equivalent Al(6) atoms. In the third Mn site, Mn(3) is bonded in a 12-coordinate geometry to one Ce(1), two equivalent Ce(2), two equivalent Mn(1), two equivalent Mn(4), one Al(2), two equivalent Al(3), and two equivalent Al(4) atoms. In the fourth Mn site, Mn(4) is bonded to one Ce(2), two equivalent Ce(1), one Mn(1), one Mn(2), one Mn(3), one Al(1), one Al(4), one Al(5), one Al(6), and two equivalent Al(3) atoms to form distorted MnCe3Mn3Al6 cuboctahedra that share corners with two equivalent Mn(4)Ce3Mn3Al6 cuboctahedra, corners with five equivalent Al(6)Ce3Mn4Al5 cuboctahedra,  an edgeedge with one Al(6)Ce3Mn4Al5 cuboctahedra, edges with two equivalent Mn(5)Ce3Mn2Al7 cuboctahedra, edges with two equivalent Mn(4)Ce3Mn3Al6 cuboctahedra, faces with two equivalent Mn(5)Ce3Mn2Al7 cuboctahedra, faces with two equivalent Mn(4)Ce3Mn3Al6 cuboctahedra, and faces with two equivalent Al(6)Ce3Mn4Al5 cuboctahedra. In the fifth Mn site, Mn(5) is bonded to one Ce(2), two equivalent Ce(1), two equivalent Mn(1), one Al(1), two equivalent Al(4), two equivalent Al(5), and two equivalent Al(6) atoms to form distorted MnCe3Mn2Al7 cuboctahedra that share corners with two equivalent Mn(5)Ce3Mn2Al7 cuboctahedra, corners with six equivalent Al(6)Ce3Mn4Al5 cuboctahedra, edges with four equivalent Mn(4)Ce3Mn3Al6 cuboctahedra, faces with two equivalent Al(6)Ce3Mn4Al5 cuboctahedra, and faces with four equivalent Mn(4)Ce3Mn3Al6 cuboctahedra. There are six inequivalent Al sites. In the first Al site, Al(1) is bonded in a 8-coordinate geometry to one Ce(1), one Mn(2), one Mn(5), two equivalent Mn(1), two equivalent Mn(4), one Al(2), two equivalent Al(3), and two equivalent Al(5) atoms. In the second Al site, Al(2) is bonded in a 8-coordinate geometry to one Ce(2), one Mn(2), one Mn(3), two equivalent Mn(1), one Al(1), two equivalent Al(3), two equivalent Al(5), and two equivalent Al(6) atoms. In the third Al site, Al(3) is bonded in a 12-coordinate geometry to one Ce(1), one Ce(2), one Mn(1), one Mn(2), one Mn(3), two equivalent Mn(4), one Al(1), one Al(2), one Al(3), one Al(4), and one Al(6) atom. In the fourth Al site, Al(4) is bonded in a 10-coordinate geometry to one Ce(1), one Ce(2), one Mn(3), one Mn(4), one Mn(5), two equivalent Mn(1), one Al(3), one Al(5), and one Al(6) atom. In the fifth Al site, Al(5) is bonded in a 12-coordinate geometry to one Ce(1), one Ce(2), one Mn(1), one Mn(2), one Mn(4), one Mn(5), one Al(1), one Al(2), one Al(4), one Al(5), and two equivalent Al(6) atoms. In the sixth Al site, Al(6) is bonded to one Ce(1), two equivalent Ce(2), one Mn(1), one Mn(2), one Mn(4), one Mn(5), one Al(2), one Al(3), one Al(4), and two equivalent Al(5) atoms to form distorted AlCe3Mn4Al5 cuboctahedra that share corners with two equivalent Al(6)Ce3Mn4Al5 cuboctahedra, corners with three equivalent Mn(5)Ce3Mn2Al7 cuboctahedra, corners with five equivalent Mn(4)Ce3Mn3Al6 cuboctahedra,  an edgeedge with one Mn(4)Ce3Mn3Al6 cuboctahedra, edges with two equivalent Al(6)Ce3Mn4Al5 cuboctahedra,  a faceface with one Mn(5)Ce3Mn2Al7 cuboctahedra, faces with two equivalent Mn(4)Ce3Mn3Al6 cuboctahedra, and faces with two equivalent Al(6)Ce3Mn4Al5 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ce2Mn7Al10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.697
_cell_length_b   6.700
_cell_length_c   6.697
_cell_angle_alpha   82.943
_cell_angle_beta   83.476
_cell_angle_gamma   82.943
_symmetry_Int_Tables_number   1
_cell_volume   294.421
_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
  Ce  Ce0  1  0.655  0.658  0.655  1.0
  Ce  Ce1  1  0.351  0.359  0.351  1.0
  Mn  Mn2  1  0.994  0.996  0.508  1.0
  Mn  Mn3  1  0.996  0.505  0.996  1.0
  Mn  Mn4  1  0.508  0.996  0.994  1.0
  Mn  Mn5  1  0.340  0.841  0.340  1.0
  Mn  Mn6  1  0.142  0.661  0.662  1.0
  Mn  Mn7  1  0.662  0.661  0.142  1.0
  Mn  Mn8  1  0.660  0.145  0.660  1.0
  Al  Al9  1  0.891  0.892  0.891  1.0
  Al  Al10  1  0.117  0.107  0.117  1.0
  Al  Al11  1  0.302  0.705  0.001  1.0
  Al  Al12  1  0.686  0.990  0.308  1.0
  Al  Al13  1  0.995  0.300  0.702  1.0
  Al  Al14  1  0.308  0.990  0.686  1.0
  Al  Al15  1  0.001  0.705  0.302  1.0
  Al  Al16  1  0.702  0.300  0.995  1.0
  Al  Al17  1  0.844  0.345  0.345  1.0
  Al  Al18  1  0.345  0.345  0.844  1.0
[/CIF]
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