The material structure described by NaMg14Y crystallizes in the orthorhombic Amm2 space group. Na(1) is bonded to two equivalent Mg(7); four Mg(3,3,3,3); four Mg(5,5); and two equivalent Y(1) atoms to form NaY2Mg10 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra; corners with six equivalent Na(1)Y2Mg10 cuboctahedra; corners with eight equivalent Mg(4)Mg12 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra; edges with four Mg(3,3,3,3)Na2Y2Mg8 cuboctahedra; edges with four equivalent Mg(7)NaMg11 cuboctahedra; edges with eight Mg(5,5)NaYMg10 cuboctahedra; faces with two equivalent Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Y(1)Na2Mg10 cuboctahedra; faces with four Mg(3,3,3,3)Na2Y2Mg8 cuboctahedra; faces with four Mg(5,5)NaYMg10 cuboctahedra; and faces with six equivalent Mg(6)YMg11 cuboctahedra. There are eleven 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 Na(1)Y2Mg10 cuboctahedra; corners with six equivalent Mg(1)Mg12 cuboctahedra; corners with eight Mg(3,3,3,3)Na2Y2Mg8 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)NaYMg10 cuboctahedra; faces with two equivalent Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Y(1)Na2Mg10 cuboctahedra; faces with four equivalent Mg(4)Mg12 cuboctahedra; faces with four Mg(5,5)NaYMg10 cuboctahedra; and faces with six equivalent Mg(7)NaMg11 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)Na2Mg10 cuboctahedra; corners with six equivalent Mg(2)Mg12 cuboctahedra; corners with eight Mg(3,3,3,3)Na2Y2Mg8 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with four equivalent Mg(4)Mg12 cuboctahedra; edges with four equivalent Mg(7)NaMg11 cuboctahedra; edges with eight Mg(5,5)NaYMg10 cuboctahedra; faces with two equivalent Na(1)Y2Mg10 cuboctahedra; faces with two equivalent Mg(1)Mg12 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with four equivalent Mg(4)Mg12 cuboctahedra; faces with four Mg(5,5)NaYMg10 cuboctahedra; and faces with six equivalent Mg(6)YMg11 cuboctahedra. In the third Mg site, Mg(3) is bonded to two equivalent Na(1), two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and two equivalent Y(1) atoms to form distorted MgNa2Y2Mg8 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)Na2Y2Mg8 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 cuboctahedra; edges with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra; edges with four equivalent Mg(7)NaMg11 cuboctahedra; edges with four equivalent Mg(5)NaYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Na(1)Y2Mg10 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Y(1)Na2Mg10 cuboctahedra; and faces with eight Mg(5,5)NaYMg10 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 Na(1)Y2Mg10 cuboctahedra; corners with four equivalent Mg(3)Na2Y2Mg8 cuboctahedra; corners with four equivalent Y(1)Na2Mg10 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)NaMg11 cuboctahedra; edges with four equivalent Mg(5)NaYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 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(3)Na2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; and faces with eight Mg(5,5)NaYMg10 cuboctahedra. In the fifth Mg site, Mg(3) is bonded to two equivalent Na(1); two equivalent Mg(3); two Mg(5,5); two equivalent Mg(6); two equivalent Mg(7); and two equivalent Y(1) atoms to form distorted MgNa2Y2Mg8 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)Na2Y2Mg8 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 cuboctahedra; edges with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra; edges with four equivalent Mg(7)NaMg11 cuboctahedra; edges with four Mg(5,5)NaYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Na(1)Y2Mg10 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Y(1)Na2Mg10 cuboctahedra; and faces with eight Mg(5,5)NaYMg10 cuboctahedra. In the sixth Mg site, Mg(5) is bonded to one Na(1), one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and one Y(1) atom to form distorted MgNaYMg10 cuboctahedra that share corners with four equivalent Mg(7)NaMg11 cuboctahedra; corners with four equivalent Mg(6)YMg11 cuboctahedra; corners with ten Mg(5,5)NaYMg10 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 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(3)Na2Y2Mg8 cuboctahedra; edges with two equivalent Mg(7)NaMg11 cuboctahedra; edges with two equivalent Mg(5)NaYMg10 cuboctahedra; edges with two equivalent Mg(6)YMg11 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra;  a faceface with one Na(1)Y2Mg10 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra;  a faceface with one Y(1)Na2Mg10 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with four equivalent Mg(4)Mg12 cuboctahedra; faces with four Mg(3,3,3)Na2Y2Mg8 cuboctahedra; and faces with four equivalent Mg(5)NaYMg10 cuboctahedra. In the seventh Mg site, Mg(5) is bonded to one Na(1), one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and one Y(1) atom to form distorted MgNaYMg10 cuboctahedra that share corners with four equivalent Mg(7)NaMg11 cuboctahedra; corners with four equivalent Mg(6)YMg11 cuboctahedra; corners with ten Mg(5,5)NaYMg10 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 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(3)Na2Y2Mg8 cuboctahedra; edges with two equivalent Mg(7)NaMg11 cuboctahedra; edges with two equivalent Mg(5)NaYMg10 cuboctahedra; edges with two equivalent Mg(6)YMg11 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra;  a faceface with one Na(1)Y2Mg10 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra;  a faceface with one Y(1)Na2Mg10 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with four equivalent Mg(4)Mg12 cuboctahedra; faces with four Mg(3,3,3)Na2Y2Mg8 cuboctahedra; and faces with four equivalent Mg(5)NaYMg10 cuboctahedra. In the eighth Mg site, Mg(6) is bonded to one Mg(1); two Mg(3,3); two equivalent Mg(4); two equivalent Mg(7); four equivalent Mg(5); and one Y(1) atom to form MgYMg11 cuboctahedra that share corners with four equivalent Mg(7)NaMg11 cuboctahedra; corners with six equivalent Mg(6)YMg11 cuboctahedra; corners with eight Mg(5,5)NaYMg10 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with two equivalent Mg(7)NaMg11 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra; edges with four equivalent Mg(4)Mg12 cuboctahedra; edges with four Mg(3,3,3,3)Na2Y2Mg8 cuboctahedra; edges with four equivalent Mg(5)NaYMg10 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Y(1)Na2Mg10 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two Mg(3,3)Na2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with three equivalent Na(1)Y2Mg10 cuboctahedra; faces with three equivalent Mg(2)Mg12 cuboctahedra; and faces with four equivalent Mg(5)NaYMg10 cuboctahedra. In the ninth Mg site, Mg(7) is bonded to one Na(1); one Mg(2); two Mg(3,3); two equivalent Mg(4); two equivalent Mg(6); and four equivalent Mg(5) atoms to form distorted MgNaMg11 cuboctahedra that share corners with four equivalent Mg(6)YMg11 cuboctahedra; corners with six equivalent Mg(7)NaMg11 cuboctahedra; corners with eight Mg(5,5)NaYMg10 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with two equivalent Mg(6)YMg11 cuboctahedra; edges with four equivalent Mg(4)Mg12 cuboctahedra; edges with four Mg(3,3,3,3)Na2Y2Mg8 cuboctahedra; edges with four equivalent Mg(5)NaYMg10 cuboctahedra;  a faceface with one Na(1)Y2Mg10 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two Mg(3,3)Na2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with three equivalent Mg(1)Mg12 cuboctahedra; faces with three equivalent Y(1)Na2Mg10 cuboctahedra; and faces with four equivalent Mg(5)NaYMg10 cuboctahedra. In the tenth Mg site, Mg(3) is bonded to two equivalent Na(1), two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and two equivalent Y(1) atoms to form distorted MgNa2Y2Mg8 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)Na2Y2Mg8 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 cuboctahedra; edges with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra; edges with four equivalent Mg(7)NaMg11 cuboctahedra; edges with four equivalent Mg(5)NaYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Na(1)Y2Mg10 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Y(1)Na2Mg10 cuboctahedra; and faces with eight Mg(5,5)NaYMg10 cuboctahedra. In the eleventh Mg site, Mg(3) is bonded to two equivalent Na(1); two equivalent Mg(3); two Mg(5,5); two equivalent Mg(6); two equivalent Mg(7); and two equivalent Y(1) atoms to form distorted MgNa2Y2Mg8 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)Na2Y2Mg8 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 cuboctahedra; edges with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra; edges with four equivalent Mg(7)NaMg11 cuboctahedra; edges with four Mg(5,5)NaYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Na(1)Y2Mg10 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Y(1)Na2Mg10 cuboctahedra; and faces with eight Mg(5,5)NaYMg10 cuboctahedra. Y(1) is bonded to two equivalent Na(1); two equivalent Mg(6); four Mg(3,3,3,3); and four Mg(5,5) atoms to form YNa2Mg10 cuboctahedra that share corners with four equivalent Mg(2)Mg12 cuboctahedra; corners with six equivalent Y(1)Na2Mg10 cuboctahedra; corners with eight equivalent Mg(4)Mg12 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 cuboctahedra; edges with four Mg(3,3,3,3)Na2Y2Mg8 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; edges with eight Mg(5,5)NaYMg10 cuboctahedra; faces with two equivalent Na(1)Y2Mg10 cuboctahedra; faces with two equivalent Mg(1)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with four Mg(3,3,3,3)Na2Y2Mg8 cuboctahedra; faces with four Mg(5,5)NaYMg10 cuboctahedra; and faces with six equivalent Mg(7)NaMg11 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_NaYMg14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.564
_cell_length_b   6.535
_cell_length_c   10.418
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.854
_symmetry_Int_Tables_number   1
_cell_volume   387.595
_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
  Na  Na0  1  0.170  0.835  0.125  1.0
  Y  Y1  1  0.167  0.333  0.125  1.0
  Mg  Mg2  1  0.166  0.333  0.625  1.0
  Mg  Mg3  1  0.167  0.833  0.625  1.0
  Mg  Mg4  1  0.661  0.325  0.125  1.0
  Mg  Mg5  1  0.667  0.334  0.625  1.0
  Mg  Mg6  1  0.661  0.836  0.125  1.0
  Mg  Mg7  1  0.667  0.833  0.625  1.0
  Mg  Mg8  1  0.337  0.170  0.382  1.0
  Mg  Mg9  1  0.337  0.170  0.868  1.0
  Mg  Mg10  1  0.337  0.667  0.382  1.0
  Mg  Mg11  1  0.337  0.667  0.868  1.0
  Mg  Mg12  1  0.833  0.166  0.378  1.0
  Mg  Mg13  1  0.833  0.166  0.872  1.0
  Mg  Mg14  1  0.831  0.665  0.376  1.0
  Mg  Mg15  1  0.831  0.665  0.874  1.0
[/CIF]
.
The material structure described by NaMg14Y crystallizes in the orthorhombic Amm2 space group. Na(1) is bonded to two equivalent Mg(7); four Mg(3,3,3,3); four Mg(5,5); and two equivalent Y(1) atoms to form NaY2Mg10 cuboctahedra that share corners with four equivalent Mg(1)Mg12 cuboctahedra; corners with six equivalent Na(1)Y2Mg10 cuboctahedra; corners with eight equivalent Mg(4)Mg12 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra; edges with four Mg(3,3,3,3)Na2Y2Mg8 cuboctahedra; edges with four equivalent Mg(7)NaMg11 cuboctahedra; edges with eight Mg(5,5)NaYMg10 cuboctahedra; faces with two equivalent Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Y(1)Na2Mg10 cuboctahedra; faces with four Mg(3,3,3,3)Na2Y2Mg8 cuboctahedra; faces with four Mg(5,5)NaYMg10 cuboctahedra; and faces with six equivalent Mg(6)YMg11 cuboctahedra. There are eleven 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 Na(1)Y2Mg10 cuboctahedra; corners with six equivalent Mg(1)Mg12 cuboctahedra; corners with eight Mg(3,3,3,3)Na2Y2Mg8 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)NaYMg10 cuboctahedra; faces with two equivalent Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Y(1)Na2Mg10 cuboctahedra; faces with four equivalent Mg(4)Mg12 cuboctahedra; faces with four Mg(5,5)NaYMg10 cuboctahedra; and faces with six equivalent Mg(7)NaMg11 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)Na2Mg10 cuboctahedra; corners with six equivalent Mg(2)Mg12 cuboctahedra; corners with eight Mg(3,3,3,3)Na2Y2Mg8 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with four equivalent Mg(4)Mg12 cuboctahedra; edges with four equivalent Mg(7)NaMg11 cuboctahedra; edges with eight Mg(5,5)NaYMg10 cuboctahedra; faces with two equivalent Na(1)Y2Mg10 cuboctahedra; faces with two equivalent Mg(1)Mg12 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with four equivalent Mg(4)Mg12 cuboctahedra; faces with four Mg(5,5)NaYMg10 cuboctahedra; and faces with six equivalent Mg(6)YMg11 cuboctahedra. In the third Mg site, Mg(3) is bonded to two equivalent Na(1), two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and two equivalent Y(1) atoms to form distorted MgNa2Y2Mg8 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)Na2Y2Mg8 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 cuboctahedra; edges with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra; edges with four equivalent Mg(7)NaMg11 cuboctahedra; edges with four equivalent Mg(5)NaYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Na(1)Y2Mg10 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Y(1)Na2Mg10 cuboctahedra; and faces with eight Mg(5,5)NaYMg10 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 Na(1)Y2Mg10 cuboctahedra; corners with four equivalent Mg(3)Na2Y2Mg8 cuboctahedra; corners with four equivalent Y(1)Na2Mg10 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)NaMg11 cuboctahedra; edges with four equivalent Mg(5)NaYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 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(3)Na2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; and faces with eight Mg(5,5)NaYMg10 cuboctahedra. In the fifth Mg site, Mg(3) is bonded to two equivalent Na(1); two equivalent Mg(3); two Mg(5,5); two equivalent Mg(6); two equivalent Mg(7); and two equivalent Y(1) atoms to form distorted MgNa2Y2Mg8 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)Na2Y2Mg8 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 cuboctahedra; edges with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra; edges with four equivalent Mg(7)NaMg11 cuboctahedra; edges with four Mg(5,5)NaYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Na(1)Y2Mg10 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Y(1)Na2Mg10 cuboctahedra; and faces with eight Mg(5,5)NaYMg10 cuboctahedra. In the sixth Mg site, Mg(5) is bonded to one Na(1), one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and one Y(1) atom to form distorted MgNaYMg10 cuboctahedra that share corners with four equivalent Mg(7)NaMg11 cuboctahedra; corners with four equivalent Mg(6)YMg11 cuboctahedra; corners with ten Mg(5,5)NaYMg10 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 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(3)Na2Y2Mg8 cuboctahedra; edges with two equivalent Mg(7)NaMg11 cuboctahedra; edges with two equivalent Mg(5)NaYMg10 cuboctahedra; edges with two equivalent Mg(6)YMg11 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra;  a faceface with one Na(1)Y2Mg10 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra;  a faceface with one Y(1)Na2Mg10 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with four equivalent Mg(4)Mg12 cuboctahedra; faces with four Mg(3,3,3)Na2Y2Mg8 cuboctahedra; and faces with four equivalent Mg(5)NaYMg10 cuboctahedra. In the seventh Mg site, Mg(5) is bonded to one Na(1), one Mg(1), one Mg(2), one Mg(3), one Mg(4), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and one Y(1) atom to form distorted MgNaYMg10 cuboctahedra that share corners with four equivalent Mg(7)NaMg11 cuboctahedra; corners with four equivalent Mg(6)YMg11 cuboctahedra; corners with ten Mg(5,5)NaYMg10 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 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(3)Na2Y2Mg8 cuboctahedra; edges with two equivalent Mg(7)NaMg11 cuboctahedra; edges with two equivalent Mg(5)NaYMg10 cuboctahedra; edges with two equivalent Mg(6)YMg11 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra;  a faceface with one Na(1)Y2Mg10 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra;  a faceface with one Y(1)Na2Mg10 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with four equivalent Mg(4)Mg12 cuboctahedra; faces with four Mg(3,3,3)Na2Y2Mg8 cuboctahedra; and faces with four equivalent Mg(5)NaYMg10 cuboctahedra. In the eighth Mg site, Mg(6) is bonded to one Mg(1); two Mg(3,3); two equivalent Mg(4); two equivalent Mg(7); four equivalent Mg(5); and one Y(1) atom to form MgYMg11 cuboctahedra that share corners with four equivalent Mg(7)NaMg11 cuboctahedra; corners with six equivalent Mg(6)YMg11 cuboctahedra; corners with eight Mg(5,5)NaYMg10 cuboctahedra; edges with two equivalent Mg(1)Mg12 cuboctahedra; edges with two equivalent Mg(7)NaMg11 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra; edges with four equivalent Mg(4)Mg12 cuboctahedra; edges with four Mg(3,3,3,3)Na2Y2Mg8 cuboctahedra; edges with four equivalent Mg(5)NaYMg10 cuboctahedra;  a faceface with one Mg(1)Mg12 cuboctahedra;  a faceface with one Y(1)Na2Mg10 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two Mg(3,3)Na2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with three equivalent Na(1)Y2Mg10 cuboctahedra; faces with three equivalent Mg(2)Mg12 cuboctahedra; and faces with four equivalent Mg(5)NaYMg10 cuboctahedra. In the ninth Mg site, Mg(7) is bonded to one Na(1); one Mg(2); two Mg(3,3); two equivalent Mg(4); two equivalent Mg(6); and four equivalent Mg(5) atoms to form distorted MgNaMg11 cuboctahedra that share corners with four equivalent Mg(6)YMg11 cuboctahedra; corners with six equivalent Mg(7)NaMg11 cuboctahedra; corners with eight Mg(5,5)NaYMg10 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 cuboctahedra; edges with two equivalent Mg(2)Mg12 cuboctahedra; edges with two equivalent Mg(6)YMg11 cuboctahedra; edges with four equivalent Mg(4)Mg12 cuboctahedra; edges with four Mg(3,3,3,3)Na2Y2Mg8 cuboctahedra; edges with four equivalent Mg(5)NaYMg10 cuboctahedra;  a faceface with one Na(1)Y2Mg10 cuboctahedra;  a faceface with one Mg(2)Mg12 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two Mg(3,3)Na2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with three equivalent Mg(1)Mg12 cuboctahedra; faces with three equivalent Y(1)Na2Mg10 cuboctahedra; and faces with four equivalent Mg(5)NaYMg10 cuboctahedra. In the tenth Mg site, Mg(3) is bonded to two equivalent Na(1), two equivalent Mg(3), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and two equivalent Y(1) atoms to form distorted MgNa2Y2Mg8 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)Na2Y2Mg8 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 cuboctahedra; edges with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra; edges with four equivalent Mg(7)NaMg11 cuboctahedra; edges with four equivalent Mg(5)NaYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Na(1)Y2Mg10 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Y(1)Na2Mg10 cuboctahedra; and faces with eight Mg(5,5)NaYMg10 cuboctahedra. In the eleventh Mg site, Mg(3) is bonded to two equivalent Na(1); two equivalent Mg(3); two Mg(5,5); two equivalent Mg(6); two equivalent Mg(7); and two equivalent Y(1) atoms to form distorted MgNa2Y2Mg8 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)Na2Y2Mg8 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 cuboctahedra; edges with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; edges with two equivalent Y(1)Na2Mg10 cuboctahedra; edges with four equivalent Mg(7)NaMg11 cuboctahedra; edges with four Mg(5,5)NaYMg10 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Na(1)Y2Mg10 cuboctahedra; faces with two equivalent Mg(4)Mg12 cuboctahedra; faces with two equivalent Mg(3)Na2Y2Mg8 cuboctahedra; faces with two equivalent Mg(7)NaMg11 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with two equivalent Y(1)Na2Mg10 cuboctahedra; and faces with eight Mg(5,5)NaYMg10 cuboctahedra. Y(1) is bonded to two equivalent Na(1); two equivalent Mg(6); four Mg(3,3,3,3); and four Mg(5,5) atoms to form YNa2Mg10 cuboctahedra that share corners with four equivalent Mg(2)Mg12 cuboctahedra; corners with six equivalent Y(1)Na2Mg10 cuboctahedra; corners with eight equivalent Mg(4)Mg12 cuboctahedra; edges with two equivalent Na(1)Y2Mg10 cuboctahedra; edges with four Mg(3,3,3,3)Na2Y2Mg8 cuboctahedra; edges with four equivalent Mg(6)YMg11 cuboctahedra; edges with eight Mg(5,5)NaYMg10 cuboctahedra; faces with two equivalent Na(1)Y2Mg10 cuboctahedra; faces with two equivalent Mg(1)Mg12 cuboctahedra; faces with two equivalent Mg(6)YMg11 cuboctahedra; faces with four Mg(3,3,3,3)Na2Y2Mg8 cuboctahedra; faces with four Mg(5,5)NaYMg10 cuboctahedra; and faces with six equivalent Mg(7)NaMg11 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_NaYMg14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.564
_cell_length_b   6.535
_cell_length_c   10.418
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.854
_symmetry_Int_Tables_number   1
_cell_volume   387.595
_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
  Na  Na0  1  0.170  0.835  0.125  1.0
  Y  Y1  1  0.167  0.333  0.125  1.0
  Mg  Mg2  1  0.166  0.333  0.625  1.0
  Mg  Mg3  1  0.167  0.833  0.625  1.0
  Mg  Mg4  1  0.661  0.325  0.125  1.0
  Mg  Mg5  1  0.667  0.334  0.625  1.0
  Mg  Mg6  1  0.661  0.836  0.125  1.0
  Mg  Mg7  1  0.667  0.833  0.625  1.0
  Mg  Mg8  1  0.337  0.170  0.382  1.0
  Mg  Mg9  1  0.337  0.170  0.868  1.0
  Mg  Mg10  1  0.337  0.667  0.382  1.0
  Mg  Mg11  1  0.337  0.667  0.868  1.0
  Mg  Mg12  1  0.833  0.166  0.378  1.0
  Mg  Mg13  1  0.833  0.166  0.872  1.0
  Mg  Mg14  1  0.831  0.665  0.376  1.0
  Mg  Mg15  1  0.831  0.665  0.874  1.0
[/CIF]
.