The material structure described by Eu2MgH6 crystallizes in the trigonal P-3m1 space group. Mg(1) is bonded to six equivalent H(1) atoms to form MgH6 octahedra that share corners with six equivalent Eu(1)H12 cuboctahedra and faces with six equivalent Eu(1)H12 cuboctahedra. Eu(1) is bonded to twelve equivalent H(1) atoms to form EuH12 cuboctahedra that share corners with six equivalent Eu(1)H12 cuboctahedra, corners with three equivalent Mg(1)H6 octahedra, faces with eight equivalent Eu(1)H12 cuboctahedra, and faces with three equivalent Mg(1)H6 octahedra. The corner-sharing octahedral tilt angles are 24°. H(1) is bonded in a 5-coordinate geometry to one Mg(1) and four equivalent Eu(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu2MgH6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.219
_cell_length_b   5.660
_cell_length_c   5.660
_cell_angle_alpha   120.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   117.040
_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
  Eu  Eu0  1  0.259  0.667  0.333  1.0
  Eu  Eu1  1  0.741  0.333  0.667  1.0
  Mg  Mg2  1  0.000  0.000  0.000  1.0
  H  H3  1  0.240  0.179  0.357  1.0
  H  H4  1  0.240  0.643  0.821  1.0
  H  H5  1  0.240  0.179  0.821  1.0
  H  H6  1  0.760  0.821  0.643  1.0
  H  H7  1  0.760  0.357  0.179  1.0
  H  H8  1  0.760  0.821  0.179  1.0
[/CIF]
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The material structure described by Eu2MgH6 crystallizes in the trigonal P-3m1 space group. Mg(1) is bonded to six equivalent H(1) atoms to form MgH6 octahedra that share corners with six equivalent Eu(1)H12 cuboctahedra and faces with six equivalent Eu(1)H12 cuboctahedra. Eu(1) is bonded to twelve equivalent H(1) atoms to form EuH12 cuboctahedra that share corners with six equivalent Eu(1)H12 cuboctahedra, corners with three equivalent Mg(1)H6 octahedra, faces with eight equivalent Eu(1)H12 cuboctahedra, and faces with three equivalent Mg(1)H6 octahedra. The corner-sharing octahedral tilt angles are 24°. H(1) is bonded in a 5-coordinate geometry to one Mg(1) and four equivalent Eu(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu2MgH6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.219
_cell_length_b   5.660
_cell_length_c   5.660
_cell_angle_alpha   120.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   117.040
_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
  Eu  Eu0  1  0.259  0.667  0.333  1.0
  Eu  Eu1  1  0.741  0.333  0.667  1.0
  Mg  Mg2  1  0.000  0.000  0.000  1.0
  H  H3  1  0.240  0.179  0.357  1.0
  H  H4  1  0.240  0.643  0.821  1.0
  H  H5  1  0.240  0.179  0.821  1.0
  H  H6  1  0.760  0.821  0.643  1.0
  H  H7  1  0.760  0.357  0.179  1.0
  H  H8  1  0.760  0.821  0.179  1.0
[/CIF]
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