The material described by LaAg3Al2 crystallizes in the orthorhombic Cmmm space group. La(1) is bonded in a 18-coordinate geometry to four equivalent Ag(2), six equivalent Ag(1), and eight equivalent Al(1) atoms. There are two inequivalent Ag sites. In the first Ag site, Ag(2) is bonded to four equivalent La(1), four equivalent Ag(1), and four equivalent Al(1) atoms to form a mixture of edge, corner, and face-sharing AgLa4Al4Ag4 cuboctahedra. In the second Ag site, Ag(1) is bonded in a 7-coordinate geometry to three equivalent La(1), two equivalent Ag(2), and four equivalent Al(1) atoms. Al(1) is bonded in a 12-coordinate geometry to four equivalent La(1), two equivalent Ag(2), four equivalent Ag(1), and two equivalent Al(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_LaAl2Ag3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.618
_cell_length_b   5.618
_cell_length_c   4.504
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   121.882
_symmetry_Int_Tables_number   1
_cell_volume   120.714
_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
  La  La0  1  0.000  0.000  0.000  1.0
  Al  Al1  1  0.500  0.000  0.500  1.0
  Al  Al2  1  0.000  0.500  0.500  1.0
  Ag  Ag3  1  0.678  0.322  0.000  1.0
  Ag  Ag4  1  0.322  0.678  0.000  1.0
  Ag  Ag5  1  0.500  0.500  0.500  1.0
[/CIF]
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The material described by LaAg3Al2 crystallizes in the orthorhombic Cmmm space group. La(1) is bonded in a 18-coordinate geometry to four equivalent Ag(2), six equivalent Ag(1), and eight equivalent Al(1) atoms. There are two inequivalent Ag sites. In the first Ag site, Ag(2) is bonded to four equivalent La(1), four equivalent Ag(1), and four equivalent Al(1) atoms to form a mixture of edge, corner, and face-sharing AgLa4Al4Ag4 cuboctahedra. In the second Ag site, Ag(1) is bonded in a 7-coordinate geometry to three equivalent La(1), two equivalent Ag(2), and four equivalent Al(1) atoms. Al(1) is bonded in a 12-coordinate geometry to four equivalent La(1), two equivalent Ag(2), four equivalent Ag(1), and two equivalent Al(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_LaAl2Ag3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.618
_cell_length_b   5.618
_cell_length_c   4.504
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   121.882
_symmetry_Int_Tables_number   1
_cell_volume   120.714
_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
  La  La0  1  0.000  0.000  0.000  1.0
  Al  Al1  1  0.500  0.000  0.500  1.0
  Al  Al2  1  0.000  0.500  0.500  1.0
  Ag  Ag3  1  0.678  0.322  0.000  1.0
  Ag  Ag4  1  0.322  0.678  0.000  1.0
  Ag  Ag5  1  0.500  0.500  0.500  1.0
[/CIF]
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