The material structure described by Mg14CeY crystallizes in the orthorhombic Amm2 space group. There are nine inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(2); two equivalent Mg(6); four equivalent Mg(4); and four Mg(5,5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Ce(1)Y2Mg10 cuboctahedra; corners with six equivalent Mg(1)Mg12 cuboctahedra; corners with eight Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with four equivalent Mg(4)Mg12 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; edges with eight Mg(5,5)CeYMg10 cuboctahedra; faces with two equivalent Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Y(1)Ce2Mg10 cuboctahedra; faces with four Mg(5,5)CeYMg10 cuboctahedra; faces with four equivalent Mg(4)Mg12 cuboctahedra; and faces with six equivalent Mg(7)CeMg11 cuboctahedra. In the second Mg site, Mg(2) is bonded to two equivalent Mg(1); two equivalent Mg(7); four equivalent Mg(4); and four Mg(5,5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Y(1)Ce2Mg10 cuboctahedra; corners with six equivalent Mg(2)Mg12 cuboctahedra; corners with eight Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with four equivalent Mg(7)CeMg11 cuboctahedra; edges with four equivalent Mg(4)Mg12 cuboctahedra; edges with eight Mg(5,5)CeYMg10 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(1)Mg12 cuboctahedra; faces with two equivalent Ce(1)Y2Mg10 cuboctahedra; faces with four Mg(5,5)CeYMg10 cuboctahedra; faces with four equivalent Mg(4)Mg12 cuboctahedra; and faces with six equivalent Mg(6)YMg11 cuboctahedra. In the third Mg site, Mg(3) is bonded to two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), two equivalent Ce(1), and two equivalent Y(1) atoms to form MgCe2Y2Mg8 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra; corners with four equivalent Mg(2)Mg12 cuboctahedra; corners with four equivalent Mg(4)Mg12 cuboctahedra; corners with six Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Ce(1)Y2Mg10 cuboctahedra; edges with two equivalent Y(1)Ce2Mg10 cuboctahedra; edges with four equivalent Mg(7)CeMg11 cuboctahedra; edges with four equivalent Mg(5)CeYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Ce(1)Y2Mg10 cuboctahedra; faces with two equivalent Y(1)Ce2Mg10 cuboctahedra; and faces with eight Mg(5,5)CeYMg10 cuboctahedra. In the fourth Mg site, Mg(4) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(4), two equivalent Mg(5), two equivalent Mg(6), and two equivalent Mg(7) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; corners with four equivalent Ce(1)Y2Mg10 cuboctahedra; corners with four equivalent Y(1)Ce2Mg10 cuboctahedra; corners with six equivalent Mg(4)Mg12 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with two equivalent Mg(4)Mg12 cuboctahedra; edges with four equivalent Mg(7)CeMg11 cuboctahedra; edges with four equivalent Mg(5)CeYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(1)Mg12 cuboctahedra; faces with two equivalent Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; and faces with eight Mg(5,5)CeYMg10 cuboctahedra. In the fifth Mg site, Mg(5) is bonded to one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), one Ce(1), and one Y(1) atom to form MgCeYMg10 cuboctahedra that share corners with four equivalent Mg(7)CeMg11 cuboctahedra; corners with four equivalent Mg(6)YMg11 cuboctahedra; corners with ten Mg(5,5)CeYMg10 cuboctahedra; edges with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Mg(7)CeMg11 cuboctahedra; edges with two equivalent Mg(5)CeYMg10 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with two equivalent Mg(4)Mg12 cuboctahedra; edges with two equivalent Mg(6)YMg11 cuboctahedra; edges with two equivalent Ce(1)Y2Mg10 cuboctahedra; edges with two equivalent Y(1)Ce2Mg10 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra;  a faceface with one Ce(1)Y2Mg10 cuboctahedra;  a faceface with one Y(1)Ce2Mg10 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with four equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; faces with four Mg(5,5)CeYMg10 cuboctahedra; and faces with four equivalent Mg(4)Mg12 cuboctahedra. In the sixth Mg site, Mg(5) is bonded to one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), one Ce(1), and one Y(1) atom to form MgCeYMg10 cuboctahedra that share corners with four equivalent Mg(7)CeMg11 cuboctahedra; corners with four equivalent Mg(6)YMg11 cuboctahedra; corners with ten Mg(5,5)CeYMg10 cuboctahedra; edges with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Mg(7)CeMg11 cuboctahedra; edges with two equivalent Mg(5)CeYMg10 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with two equivalent Mg(4)Mg12 cuboctahedra; edges with two equivalent Mg(6)YMg11 cuboctahedra; edges with two equivalent Ce(1)Y2Mg10 cuboctahedra; edges with two equivalent Y(1)Ce2Mg10 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra;  a faceface with one Ce(1)Y2Mg10 cuboctahedra;  a faceface with one Y(1)Ce2Mg10 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with four Mg(3,3)Ce2Y2Mg8 cuboctahedra; faces with four Mg(5,5)CeYMg10 cuboctahedra; and faces with four equivalent Mg(4)Mg12 cuboctahedra. In the seventh Mg site, Mg(6) is bonded to one Mg(1); two equivalent Mg(3); two equivalent Mg(4); two equivalent Mg(7); four Mg(5,5); and one Y(1) atom to form MgYMg11 cuboctahedra that share corners with four equivalent Mg(7)CeMg11 cuboctahedra; corners with six equivalent Mg(6)YMg11 cuboctahedra; corners with eight Mg(5,5)CeYMg10 cuboctahedra; edges with two equivalent Mg(7)CeMg11 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with two equivalent Y(1)Ce2Mg10 cuboctahedra; edges with four Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with four Mg(5,5)CeYMg10 cuboctahedra; edges with four equivalent Mg(4)Mg12 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Y(1)Ce2Mg10 cuboctahedra; faces with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with three equivalent Mg(2)Mg12 cuboctahedra; faces with three equivalent Ce(1)Y2Mg10 cuboctahedra; and faces with four Mg(5,5)CeYMg10 cuboctahedra. In the eighth Mg site, Mg(7) is bonded to one Mg(2); two equivalent Mg(3); two equivalent Mg(4); two equivalent Mg(6); four Mg(5,5); and one Ce(1) atom to form MgCeMg11 cuboctahedra that share corners with four equivalent Mg(6)YMg11 cuboctahedra; corners with six equivalent Mg(7)CeMg11 cuboctahedra; corners with eight Mg(5,5)CeYMg10 cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with two equivalent Mg(6)YMg11 cuboctahedra; edges with two equivalent Ce(1)Y2Mg10 cuboctahedra; edges with four Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with four Mg(5,5)CeYMg10 cuboctahedra; edges with four equivalent Mg(4)Mg12 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra;  a faceface with one Ce(1)Y2Mg10 cuboctahedra; faces with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with three equivalent Mg(1)Mg12 cuboctahedra; faces with three equivalent Y(1)Ce2Mg10 cuboctahedra; and faces with four Mg(5,5)CeYMg10 cuboctahedra. In the ninth Mg site, Mg(3) is bonded to two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), two equivalent Ce(1), and two equivalent Y(1) atoms to form MgCe2Y2Mg8 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra; corners with four equivalent Mg(2)Mg12 cuboctahedra; corners with four equivalent Mg(4)Mg12 cuboctahedra; corners with six Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Ce(1)Y2Mg10 cuboctahedra; edges with two equivalent Y(1)Ce2Mg10 cuboctahedra; edges with four equivalent Mg(7)CeMg11 cuboctahedra; edges with four equivalent Mg(5)CeYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Ce(1)Y2Mg10 cuboctahedra; faces with two equivalent Y(1)Ce2Mg10 cuboctahedra; and faces with eight Mg(5,5)CeYMg10 cuboctahedra. Ce(1) is bonded to two equivalent Mg(7); four Mg(3,3); four Mg(5,5); and two equivalent Y(1) atoms to form CeY2Mg10 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra; corners with six equivalent Ce(1)Y2Mg10 cuboctahedra; corners with eight equivalent Mg(4)Mg12 cuboctahedra; edges with two equivalent Y(1)Ce2Mg10 cuboctahedra; edges with four Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with four equivalent Mg(7)CeMg11 cuboctahedra; edges with eight Mg(5,5)CeYMg10 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(2)Mg12 cuboctahedra; faces with two equivalent Y(1)Ce2Mg10 cuboctahedra; faces with four Mg(3,3)Ce2Y2Mg8 cuboctahedra; faces with four Mg(5,5)CeYMg10 cuboctahedra; and faces with six equivalent Mg(6)YMg11 cuboctahedra. Y(1) is bonded to two equivalent Mg(6); four Mg(3,3); four Mg(5,5); and two equivalent Ce(1) atoms to form YCe2Mg10 cuboctahedra that share corners with four equivalent Mg(2)Mg12 cuboctahedra; corners with six equivalent Y(1)Ce2Mg10 cuboctahedra; corners with eight equivalent Mg(4)Mg12 cuboctahedra; edges with two equivalent Ce(1)Y2Mg10 cuboctahedra; edges with four Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; edges with eight Mg(5,5)CeYMg10 cuboctahedra; faces with two equivalent Mg(1)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Ce(1)Y2Mg10 cuboctahedra; faces with four Mg(3,3)Ce2Y2Mg8 cuboctahedra; faces with four Mg(5,5)CeYMg10 cuboctahedra; and faces with six equivalent Mg(7)CeMg11 cuboctahedra. is represented by the CIF card [CIF]
data_CeYMg14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.521
_cell_length_b   6.441
_cell_length_c   10.394
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.596
_symmetry_Int_Tables_number   1
_cell_volume   379.575
_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  0.172  0.836  0.125  1.0
  Y  Y1  1  0.181  0.341  0.125  1.0
  Mg  Mg2  1  0.161  0.331  0.625  1.0
  Mg  Mg3  1  0.161  0.831  0.625  1.0
  Mg  Mg4  1  0.670  0.336  0.125  1.0
  Mg  Mg5  1  0.666  0.333  0.625  1.0
  Mg  Mg6  1  0.670  0.835  0.125  1.0
  Mg  Mg7  1  0.666  0.833  0.625  1.0
  Mg  Mg8  1  0.334  0.167  0.388  1.0
  Mg  Mg9  1  0.334  0.167  0.862  1.0
  Mg  Mg10  1  0.334  0.667  0.388  1.0
  Mg  Mg11  1  0.334  0.667  0.862  1.0
  Mg  Mg12  1  0.829  0.165  0.377  1.0
  Mg  Mg13  1  0.829  0.165  0.873  1.0
  Mg  Mg14  1  0.827  0.664  0.381  1.0
  Mg  Mg15  1  0.827  0.664  0.869  1.0
[/CIF]
.
The material structure described by Mg14CeY crystallizes in the orthorhombic Amm2 space group. There are nine inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent Mg(2); two equivalent Mg(6); four equivalent Mg(4); and four Mg(5,5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Ce(1)Y2Mg10 cuboctahedra; corners with six equivalent Mg(1)Mg12 cuboctahedra; corners with eight Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with four equivalent Mg(4)Mg12 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; edges with eight Mg(5,5)CeYMg10 cuboctahedra; faces with two equivalent Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Y(1)Ce2Mg10 cuboctahedra; faces with four Mg(5,5)CeYMg10 cuboctahedra; faces with four equivalent Mg(4)Mg12 cuboctahedra; and faces with six equivalent Mg(7)CeMg11 cuboctahedra. In the second Mg site, Mg(2) is bonded to two equivalent Mg(1); two equivalent Mg(7); four equivalent Mg(4); and four Mg(5,5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Y(1)Ce2Mg10 cuboctahedra; corners with six equivalent Mg(2)Mg12 cuboctahedra; corners with eight Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with four equivalent Mg(7)CeMg11 cuboctahedra; edges with four equivalent Mg(4)Mg12 cuboctahedra; edges with eight Mg(5,5)CeYMg10 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(1)Mg12 cuboctahedra; faces with two equivalent Ce(1)Y2Mg10 cuboctahedra; faces with four Mg(5,5)CeYMg10 cuboctahedra; faces with four equivalent Mg(4)Mg12 cuboctahedra; and faces with six equivalent Mg(6)YMg11 cuboctahedra. In the third Mg site, Mg(3) is bonded to two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), two equivalent Ce(1), and two equivalent Y(1) atoms to form MgCe2Y2Mg8 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra; corners with four equivalent Mg(2)Mg12 cuboctahedra; corners with four equivalent Mg(4)Mg12 cuboctahedra; corners with six Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Ce(1)Y2Mg10 cuboctahedra; edges with two equivalent Y(1)Ce2Mg10 cuboctahedra; edges with four equivalent Mg(7)CeMg11 cuboctahedra; edges with four equivalent Mg(5)CeYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Ce(1)Y2Mg10 cuboctahedra; faces with two equivalent Y(1)Ce2Mg10 cuboctahedra; and faces with eight Mg(5,5)CeYMg10 cuboctahedra. In the fourth Mg site, Mg(4) is bonded to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(4), two equivalent Mg(5), two equivalent Mg(6), and two equivalent Mg(7) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; corners with four equivalent Ce(1)Y2Mg10 cuboctahedra; corners with four equivalent Y(1)Ce2Mg10 cuboctahedra; corners with six equivalent Mg(4)Mg12 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with two equivalent Mg(4)Mg12 cuboctahedra; edges with four equivalent Mg(7)CeMg11 cuboctahedra; edges with four equivalent Mg(5)CeYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(1)Mg12 cuboctahedra; faces with two equivalent Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; and faces with eight Mg(5,5)CeYMg10 cuboctahedra. In the fifth Mg site, Mg(5) is bonded to one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), one Ce(1), and one Y(1) atom to form MgCeYMg10 cuboctahedra that share corners with four equivalent Mg(7)CeMg11 cuboctahedra; corners with four equivalent Mg(6)YMg11 cuboctahedra; corners with ten Mg(5,5)CeYMg10 cuboctahedra; edges with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Mg(7)CeMg11 cuboctahedra; edges with two equivalent Mg(5)CeYMg10 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with two equivalent Mg(4)Mg12 cuboctahedra; edges with two equivalent Mg(6)YMg11 cuboctahedra; edges with two equivalent Ce(1)Y2Mg10 cuboctahedra; edges with two equivalent Y(1)Ce2Mg10 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra;  a faceface with one Ce(1)Y2Mg10 cuboctahedra;  a faceface with one Y(1)Ce2Mg10 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with four equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; faces with four Mg(5,5)CeYMg10 cuboctahedra; and faces with four equivalent Mg(4)Mg12 cuboctahedra. In the sixth Mg site, Mg(5) is bonded to one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), one Ce(1), and one Y(1) atom to form MgCeYMg10 cuboctahedra that share corners with four equivalent Mg(7)CeMg11 cuboctahedra; corners with four equivalent Mg(6)YMg11 cuboctahedra; corners with ten Mg(5,5)CeYMg10 cuboctahedra; edges with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Mg(7)CeMg11 cuboctahedra; edges with two equivalent Mg(5)CeYMg10 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with two equivalent Mg(4)Mg12 cuboctahedra; edges with two equivalent Mg(6)YMg11 cuboctahedra; edges with two equivalent Ce(1)Y2Mg10 cuboctahedra; edges with two equivalent Y(1)Ce2Mg10 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra;  a faceface with one Ce(1)Y2Mg10 cuboctahedra;  a faceface with one Y(1)Ce2Mg10 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with four Mg(3,3)Ce2Y2Mg8 cuboctahedra; faces with four Mg(5,5)CeYMg10 cuboctahedra; and faces with four equivalent Mg(4)Mg12 cuboctahedra. In the seventh Mg site, Mg(6) is bonded to one Mg(1); two equivalent Mg(3); two equivalent Mg(4); two equivalent Mg(7); four Mg(5,5); and one Y(1) atom to form MgYMg11 cuboctahedra that share corners with four equivalent Mg(7)CeMg11 cuboctahedra; corners with six equivalent Mg(6)YMg11 cuboctahedra; corners with eight Mg(5,5)CeYMg10 cuboctahedra; edges with two equivalent Mg(7)CeMg11 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with two equivalent Y(1)Ce2Mg10 cuboctahedra; edges with four Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with four Mg(5,5)CeYMg10 cuboctahedra; edges with four equivalent Mg(4)Mg12 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Y(1)Ce2Mg10 cuboctahedra; faces with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with three equivalent Mg(2)Mg12 cuboctahedra; faces with three equivalent Ce(1)Y2Mg10 cuboctahedra; and faces with four Mg(5,5)CeYMg10 cuboctahedra. In the eighth Mg site, Mg(7) is bonded to one Mg(2); two equivalent Mg(3); two equivalent Mg(4); two equivalent Mg(6); four Mg(5,5); and one Ce(1) atom to form MgCeMg11 cuboctahedra that share corners with four equivalent Mg(6)YMg11 cuboctahedra; corners with six equivalent Mg(7)CeMg11 cuboctahedra; corners with eight Mg(5,5)CeYMg10 cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with two equivalent Mg(6)YMg11 cuboctahedra; edges with two equivalent Ce(1)Y2Mg10 cuboctahedra; edges with four Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with four Mg(5,5)CeYMg10 cuboctahedra; edges with four equivalent Mg(4)Mg12 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra;  a faceface with one Ce(1)Y2Mg10 cuboctahedra; faces with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with three equivalent Mg(1)Mg12 cuboctahedra; faces with three equivalent Y(1)Ce2Mg10 cuboctahedra; and faces with four Mg(5,5)CeYMg10 cuboctahedra. In the ninth Mg site, Mg(3) is bonded to two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), two equivalent Ce(1), and two equivalent Y(1) atoms to form MgCe2Y2Mg8 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra; corners with four equivalent Mg(2)Mg12 cuboctahedra; corners with four equivalent Mg(4)Mg12 cuboctahedra; corners with six Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; edges with two equivalent Ce(1)Y2Mg10 cuboctahedra; edges with two equivalent Y(1)Ce2Mg10 cuboctahedra; edges with four equivalent Mg(7)CeMg11 cuboctahedra; edges with four equivalent Mg(5)CeYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Mg(3)Ce2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Ce(1)Y2Mg10 cuboctahedra; faces with two equivalent Y(1)Ce2Mg10 cuboctahedra; and faces with eight Mg(5,5)CeYMg10 cuboctahedra. Ce(1) is bonded to two equivalent Mg(7); four Mg(3,3); four Mg(5,5); and two equivalent Y(1) atoms to form CeY2Mg10 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra; corners with six equivalent Ce(1)Y2Mg10 cuboctahedra; corners with eight equivalent Mg(4)Mg12 cuboctahedra; edges with two equivalent Y(1)Ce2Mg10 cuboctahedra; edges with four Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with four equivalent Mg(7)CeMg11 cuboctahedra; edges with eight Mg(5,5)CeYMg10 cuboctahedra; faces with two equivalent Mg(7)CeMg11 cuboctahedra; faces with two equivalent Mg(2)Mg12 cuboctahedra; faces with two equivalent Y(1)Ce2Mg10 cuboctahedra; faces with four Mg(3,3)Ce2Y2Mg8 cuboctahedra; faces with four Mg(5,5)CeYMg10 cuboctahedra; and faces with six equivalent Mg(6)YMg11 cuboctahedra. Y(1) is bonded to two equivalent Mg(6); four Mg(3,3); four Mg(5,5); and two equivalent Ce(1) atoms to form YCe2Mg10 cuboctahedra that share corners with four equivalent Mg(2)Mg12 cuboctahedra; corners with six equivalent Y(1)Ce2Mg10 cuboctahedra; corners with eight equivalent Mg(4)Mg12 cuboctahedra; edges with two equivalent Ce(1)Y2Mg10 cuboctahedra; edges with four Mg(3,3)Ce2Y2Mg8 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; edges with eight Mg(5,5)CeYMg10 cuboctahedra; faces with two equivalent Mg(1)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Ce(1)Y2Mg10 cuboctahedra; faces with four Mg(3,3)Ce2Y2Mg8 cuboctahedra; faces with four Mg(5,5)CeYMg10 cuboctahedra; and faces with six equivalent Mg(7)CeMg11 cuboctahedra. is represented by the CIF card [CIF]
data_CeYMg14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.521
_cell_length_b   6.441
_cell_length_c   10.394
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.596
_symmetry_Int_Tables_number   1
_cell_volume   379.575
_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  0.172  0.836  0.125  1.0
  Y  Y1  1  0.181  0.341  0.125  1.0
  Mg  Mg2  1  0.161  0.331  0.625  1.0
  Mg  Mg3  1  0.161  0.831  0.625  1.0
  Mg  Mg4  1  0.670  0.336  0.125  1.0
  Mg  Mg5  1  0.666  0.333  0.625  1.0
  Mg  Mg6  1  0.670  0.835  0.125  1.0
  Mg  Mg7  1  0.666  0.833  0.625  1.0
  Mg  Mg8  1  0.334  0.167  0.388  1.0
  Mg  Mg9  1  0.334  0.167  0.862  1.0
  Mg  Mg10  1  0.334  0.667  0.388  1.0
  Mg  Mg11  1  0.334  0.667  0.862  1.0
  Mg  Mg12  1  0.829  0.165  0.377  1.0
  Mg  Mg13  1  0.829  0.165  0.873  1.0
  Mg  Mg14  1  0.827  0.664  0.381  1.0
  Mg  Mg15  1  0.827  0.664  0.869  1.0
[/CIF]
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