The crystal structure described by RbMg14Ga crystallizes in the orthorhombic Amm2 space group. Rb(1) is bonded to two equivalent Mg(6), four equivalent Mg(3), four equivalent Mg(5), and two equivalent Ga(1) atoms to form RbMg10Ga2 cuboctahedra that share corners with four equivalent Mg(2)Mg12 cuboctahedra, corners with six equivalent Rb(1)Mg10Ga2 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(6)RbMg11 cuboctahedra, edges with eight equivalent Mg(5)RbMg10Ga cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(6)RbMg11 cuboctahedra, and faces with four equivalent Mg(5)RbMg10Ga cuboctahedra. There are seven 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 equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with six equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(6)RbMg11 cuboctahedra, edges with eight equivalent Mg(5)RbMg10Ga cuboctahedra, faces with two equivalent Rb(1)Mg10Ga2 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(6)RbMg11 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, and faces with four equivalent Mg(5)RbMg10Ga 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 equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Rb(1)Mg10Ga2 cuboctahedra, corners with six equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with eight equivalent Mg(5)RbMg10Ga cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, faces with four equivalent Mg(5)RbMg10Ga cuboctahedra, and faces with six equivalent Mg(6)RbMg11 cuboctahedra. In the third Mg site, Mg(3) is bonded in a 3-coordinate geometry to two equivalent Rb(1), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and one Ga(1) atom. 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 Rb(1)Mg10Ga2 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(5)RbMg10Ga cuboctahedra, edges with four equivalent Mg(6)RbMg11 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)RbMg11 cuboctahedra, and faces with eight equivalent Mg(5)RbMg10Ga cuboctahedra. In the fifth Mg site, Mg(5) is bonded to one Rb(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 Ga(1) atom to form distorted MgRbMg10Ga cuboctahedra that share corners with four equivalent Mg(6)RbMg11 cuboctahedra, corners with ten equivalent Mg(5)RbMg10Ga cuboctahedra, edges with two equivalent Rb(1)Mg10Ga2 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(5)RbMg10Ga cuboctahedra, edges with two equivalent Mg(6)RbMg11 cuboctahedra,  a faceface with one Rb(1)Mg10Ga2 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(6)RbMg11 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, and faces with four equivalent Mg(5)RbMg10Ga cuboctahedra. In the sixth Mg site, Mg(6) is bonded to one Rb(1), one Mg(1), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(7), and four equivalent Mg(5) atoms to form distorted MgRbMg11 cuboctahedra that share corners with six equivalent Mg(6)RbMg11 cuboctahedra, corners with eight equivalent Mg(5)RbMg10Ga cuboctahedra, edges with two equivalent Rb(1)Mg10Ga2 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(5)RbMg10Ga cuboctahedra,  a faceface with one Rb(1)Mg10Ga2 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(6)RbMg11 cuboctahedra, faces with three equivalent Mg(2)Mg12 cuboctahedra, and faces with four equivalent Mg(5)RbMg10Ga cuboctahedra. In the seventh Mg site, Mg(7) is bonded in a 12-coordinate geometry to one Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(6), four equivalent Mg(5), and one Ga(1) atom. Ga(1) is bonded in a 10-coordinate geometry to two equivalent Rb(1), two equivalent Mg(3), two equivalent Mg(7), and four equivalent Mg(5) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbMg14Ga
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.524
_cell_length_b   6.580
_cell_length_c   10.621
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.283
_symmetry_Int_Tables_number   1
_cell_volume   393.684
_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
  Rb  Rb0  1  0.160  0.330  0.125  1.0
  Mg  Mg1  1  0.169  0.334  0.625  1.0
  Mg  Mg2  1  0.165  0.832  0.625  1.0
  Mg  Mg3  1  0.656  0.321  0.125  1.0
  Mg  Mg4  1  0.668  0.337  0.625  1.0
  Mg  Mg5  1  0.656  0.835  0.125  1.0
  Mg  Mg6  1  0.668  0.831  0.625  1.0
  Mg  Mg7  1  0.336  0.157  0.387  1.0
  Mg  Mg8  1  0.336  0.157  0.863  1.0
  Mg  Mg9  1  0.336  0.679  0.387  1.0
  Mg  Mg10  1  0.336  0.679  0.863  1.0
  Mg  Mg11  1  0.820  0.160  0.393  1.0
  Mg  Mg12  1  0.820  0.160  0.857  1.0
  Mg  Mg13  1  0.837  0.669  0.365  1.0
  Mg  Mg14  1  0.837  0.669  0.885  1.0
  Ga  Ga15  1  0.201  0.851  0.125  1.0
[/CIF]
.
The crystal structure described by RbMg14Ga crystallizes in the orthorhombic Amm2 space group. Rb(1) is bonded to two equivalent Mg(6), four equivalent Mg(3), four equivalent Mg(5), and two equivalent Ga(1) atoms to form RbMg10Ga2 cuboctahedra that share corners with four equivalent Mg(2)Mg12 cuboctahedra, corners with six equivalent Rb(1)Mg10Ga2 cuboctahedra, corners with eight equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(6)RbMg11 cuboctahedra, edges with eight equivalent Mg(5)RbMg10Ga cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(6)RbMg11 cuboctahedra, and faces with four equivalent Mg(5)RbMg10Ga cuboctahedra. There are seven 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 equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with six equivalent Mg(1)Mg12 cuboctahedra, edges with two equivalent Mg(2)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(6)RbMg11 cuboctahedra, edges with eight equivalent Mg(5)RbMg10Ga cuboctahedra, faces with two equivalent Rb(1)Mg10Ga2 cuboctahedra, faces with two equivalent Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(6)RbMg11 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, and faces with four equivalent Mg(5)RbMg10Ga 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 equivalent Mg(5) atoms to form MgMg12 cuboctahedra that share corners with four equivalent Rb(1)Mg10Ga2 cuboctahedra, corners with six equivalent Mg(2)Mg12 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with eight equivalent Mg(5)RbMg10Ga cuboctahedra, faces with two equivalent Mg(1)Mg12 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, faces with four equivalent Mg(5)RbMg10Ga cuboctahedra, and faces with six equivalent Mg(6)RbMg11 cuboctahedra. In the third Mg site, Mg(3) is bonded in a 3-coordinate geometry to two equivalent Rb(1), two equivalent Mg(5), two equivalent Mg(6), two equivalent Mg(7), and one Ga(1) atom. 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 Rb(1)Mg10Ga2 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(5)RbMg10Ga cuboctahedra, edges with four equivalent Mg(6)RbMg11 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)RbMg11 cuboctahedra, and faces with eight equivalent Mg(5)RbMg10Ga cuboctahedra. In the fifth Mg site, Mg(5) is bonded to one Rb(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 Ga(1) atom to form distorted MgRbMg10Ga cuboctahedra that share corners with four equivalent Mg(6)RbMg11 cuboctahedra, corners with ten equivalent Mg(5)RbMg10Ga cuboctahedra, edges with two equivalent Rb(1)Mg10Ga2 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(5)RbMg10Ga cuboctahedra, edges with two equivalent Mg(6)RbMg11 cuboctahedra,  a faceface with one Rb(1)Mg10Ga2 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra,  a faceface with one Mg(2)Mg12 cuboctahedra, faces with two equivalent Mg(6)RbMg11 cuboctahedra, faces with four equivalent Mg(4)Mg12 cuboctahedra, and faces with four equivalent Mg(5)RbMg10Ga cuboctahedra. In the sixth Mg site, Mg(6) is bonded to one Rb(1), one Mg(1), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(7), and four equivalent Mg(5) atoms to form distorted MgRbMg11 cuboctahedra that share corners with six equivalent Mg(6)RbMg11 cuboctahedra, corners with eight equivalent Mg(5)RbMg10Ga cuboctahedra, edges with two equivalent Rb(1)Mg10Ga2 cuboctahedra, edges with two equivalent Mg(1)Mg12 cuboctahedra, edges with four equivalent Mg(4)Mg12 cuboctahedra, edges with four equivalent Mg(5)RbMg10Ga cuboctahedra,  a faceface with one Rb(1)Mg10Ga2 cuboctahedra,  a faceface with one Mg(1)Mg12 cuboctahedra, faces with two equivalent Mg(4)Mg12 cuboctahedra, faces with two equivalent Mg(6)RbMg11 cuboctahedra, faces with three equivalent Mg(2)Mg12 cuboctahedra, and faces with four equivalent Mg(5)RbMg10Ga cuboctahedra. In the seventh Mg site, Mg(7) is bonded in a 12-coordinate geometry to one Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent Mg(6), four equivalent Mg(5), and one Ga(1) atom. Ga(1) is bonded in a 10-coordinate geometry to two equivalent Rb(1), two equivalent Mg(3), two equivalent Mg(7), and four equivalent Mg(5) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_RbMg14Ga
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.524
_cell_length_b   6.580
_cell_length_c   10.621
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.283
_symmetry_Int_Tables_number   1
_cell_volume   393.684
_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
  Rb  Rb0  1  0.160  0.330  0.125  1.0
  Mg  Mg1  1  0.169  0.334  0.625  1.0
  Mg  Mg2  1  0.165  0.832  0.625  1.0
  Mg  Mg3  1  0.656  0.321  0.125  1.0
  Mg  Mg4  1  0.668  0.337  0.625  1.0
  Mg  Mg5  1  0.656  0.835  0.125  1.0
  Mg  Mg6  1  0.668  0.831  0.625  1.0
  Mg  Mg7  1  0.336  0.157  0.387  1.0
  Mg  Mg8  1  0.336  0.157  0.863  1.0
  Mg  Mg9  1  0.336  0.679  0.387  1.0
  Mg  Mg10  1  0.336  0.679  0.863  1.0
  Mg  Mg11  1  0.820  0.160  0.393  1.0
  Mg  Mg12  1  0.820  0.160  0.857  1.0
  Mg  Mg13  1  0.837  0.669  0.365  1.0
  Mg  Mg14  1  0.837  0.669  0.885  1.0
  Ga  Ga15  1  0.201  0.851  0.125  1.0
[/CIF]
.