The crystal structure described by AlMg4Zn11 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 13-coordinate geometry to three equivalent Mg(2), one Zn(2), two equivalent Zn(4), three equivalent Zn(1), and four equivalent Zn(5) atoms. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to one Mg(2), three equivalent Mg(1), one Zn(4), two equivalent Zn(5), and three equivalent Zn(1) atoms. There are five inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 10-coordinate geometry to three equivalent Mg(1), three equivalent Mg(2), one Zn(1), one Zn(4), and two equivalent Zn(5) atoms. In the second Zn site, Zn(2) is bonded in a 2-coordinate geometry to one Mg(1), one Zn(2), two equivalent Zn(4), and four equivalent Zn(5) atoms. In the third Zn site, Zn(3) is bonded in a 9-coordinate geometry to two equivalent Zn(4), four equivalent Zn(5), and three equivalent Al(1) atoms. In the fourth Zn site, Zn(4) is bonded to one Mg(2), two equivalent Mg(1), one Zn(1), one Zn(3), two equivalent Zn(2), four equivalent Zn(5), and one Al(1) atom to form a mixture of distorted face, corner, and edge-sharing ZnMg3AlZn8 cuboctahedra. In the fifth Zn site, Zn(5) is bonded to one Mg(2), two equivalent Mg(1), one Zn(1), one Zn(3), two equivalent Zn(2), two equivalent Zn(4), two equivalent Zn(5), and one Al(1) atom to form a mixture of distorted face, corner, and edge-sharing ZnMg3AlZn8 cuboctahedra. Al(1) is bonded in a 9-coordinate geometry to two equivalent Zn(4), three equivalent Zn(3), and four equivalent Zn(5) atoms. is represented by the CIF card [CIF]
data_Mg4AlZn11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.238
_cell_length_b   5.238
_cell_length_c   11.816
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   118.674
_symmetry_Int_Tables_number   1
_cell_volume   284.443
_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
  Mg  Mg0  1  0.334  0.666  0.165  1.0
  Mg  Mg1  1  0.334  0.666  0.835  1.0
  Mg  Mg2  1  0.001  0.999  0.117  1.0
  Mg  Mg3  1  0.001  0.999  0.883  1.0
  Al  Al4  1  0.663  0.337  0.500  1.0
  Zn  Zn5  1  0.664  0.336  0.113  1.0
  Zn  Zn6  1  0.664  0.336  0.887  1.0
  Zn  Zn7  1  0.333  0.667  0.397  1.0
  Zn  Zn8  1  0.333  0.667  0.603  1.0
  Zn  Zn9  1  0.003  0.997  0.500  1.0
  Zn  Zn10  1  0.834  0.166  0.311  1.0
  Zn  Zn11  1  0.334  0.166  0.310  1.0
  Zn  Zn12  1  0.834  0.666  0.310  1.0
  Zn  Zn13  1  0.834  0.166  0.689  1.0
  Zn  Zn14  1  0.334  0.166  0.690  1.0
  Zn  Zn15  1  0.834  0.666  0.690  1.0
[/CIF]
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The crystal structure described by AlMg4Zn11 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 13-coordinate geometry to three equivalent Mg(2), one Zn(2), two equivalent Zn(4), three equivalent Zn(1), and four equivalent Zn(5) atoms. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to one Mg(2), three equivalent Mg(1), one Zn(4), two equivalent Zn(5), and three equivalent Zn(1) atoms. There are five inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 10-coordinate geometry to three equivalent Mg(1), three equivalent Mg(2), one Zn(1), one Zn(4), and two equivalent Zn(5) atoms. In the second Zn site, Zn(2) is bonded in a 2-coordinate geometry to one Mg(1), one Zn(2), two equivalent Zn(4), and four equivalent Zn(5) atoms. In the third Zn site, Zn(3) is bonded in a 9-coordinate geometry to two equivalent Zn(4), four equivalent Zn(5), and three equivalent Al(1) atoms. In the fourth Zn site, Zn(4) is bonded to one Mg(2), two equivalent Mg(1), one Zn(1), one Zn(3), two equivalent Zn(2), four equivalent Zn(5), and one Al(1) atom to form a mixture of distorted face, corner, and edge-sharing ZnMg3AlZn8 cuboctahedra. In the fifth Zn site, Zn(5) is bonded to one Mg(2), two equivalent Mg(1), one Zn(1), one Zn(3), two equivalent Zn(2), two equivalent Zn(4), two equivalent Zn(5), and one Al(1) atom to form a mixture of distorted face, corner, and edge-sharing ZnMg3AlZn8 cuboctahedra. Al(1) is bonded in a 9-coordinate geometry to two equivalent Zn(4), three equivalent Zn(3), and four equivalent Zn(5) atoms. is represented by the CIF card [CIF]
data_Mg4AlZn11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.238
_cell_length_b   5.238
_cell_length_c   11.816
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   118.674
_symmetry_Int_Tables_number   1
_cell_volume   284.443
_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
  Mg  Mg0  1  0.334  0.666  0.165  1.0
  Mg  Mg1  1  0.334  0.666  0.835  1.0
  Mg  Mg2  1  0.001  0.999  0.117  1.0
  Mg  Mg3  1  0.001  0.999  0.883  1.0
  Al  Al4  1  0.663  0.337  0.500  1.0
  Zn  Zn5  1  0.664  0.336  0.113  1.0
  Zn  Zn6  1  0.664  0.336  0.887  1.0
  Zn  Zn7  1  0.333  0.667  0.397  1.0
  Zn  Zn8  1  0.333  0.667  0.603  1.0
  Zn  Zn9  1  0.003  0.997  0.500  1.0
  Zn  Zn10  1  0.834  0.166  0.311  1.0
  Zn  Zn11  1  0.334  0.166  0.310  1.0
  Zn  Zn12  1  0.834  0.666  0.310  1.0
  Zn  Zn13  1  0.834  0.166  0.689  1.0
  Zn  Zn14  1  0.334  0.166  0.690  1.0
  Zn  Zn15  1  0.834  0.666  0.690  1.0
[/CIF]
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