The compound described by Eu2Sb3 is Magnesium tetraboride-like structured and crystallizes in the monoclinic P2/c space group. There are five inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 8-coordinate geometry to two equivalent Sb(1), two equivalent Sb(2), and four equivalent Sb(4) atoms. In the second Eu site, Eu(2) is bonded in a 8-coordinate geometry to one Sb(2), one Sb(3), one Sb(6), two equivalent Sb(1), two equivalent Sb(4), and two equivalent Sb(5) atoms. In the third Eu site, Eu(3) is bonded in a 8-coordinate geometry to two equivalent Sb(1), two equivalent Sb(3), two equivalent Sb(5), and four equivalent Sb(6) atoms. In the fourth Eu site, Eu(4) is bonded in a 8-coordinate geometry to one Sb(2), one Sb(4), one Sb(6), two equivalent Sb(1), and three equivalent Sb(3) atoms. In the fifth Eu site, Eu(5) is bonded in a 8-coordinate geometry to one Sb(3), one Sb(4), one Sb(6), two equivalent Sb(5), and three equivalent Sb(2) atoms. There are six inequivalent Sb sites. In the first Sb site, Sb(5) is bonded in a 8-coordinate geometry to one Eu(3), two equivalent Eu(2), two equivalent Eu(5), one Sb(1), one Sb(2), and one Sb(6) atom. In the second Sb site, Sb(6) is bonded in a 8-coordinate geometry to one Eu(2), one Eu(4), one Eu(5), two equivalent Eu(3), one Sb(3), one Sb(5), and one Sb(6) atom. In the third Sb site, Sb(1) is bonded in a 9-coordinate geometry to one Eu(1), one Eu(3), two equivalent Eu(2), two equivalent Eu(4), one Sb(3), one Sb(4), and one Sb(5) atom. In the fourth Sb site, Sb(2) is bonded in a 8-coordinate geometry to one Eu(1), one Eu(2), one Eu(4), three equivalent Eu(5), one Sb(4), and one Sb(5) atom. In the fifth Sb site, Sb(3) is bonded in a 8-coordinate geometry to one Eu(2), one Eu(3), one Eu(5), three equivalent Eu(4), one Sb(1), and one Sb(6) atom. In the sixth Sb site, Sb(4) is bonded in a 9-coordinate geometry to one Eu(4), one Eu(5), two equivalent Eu(1), two equivalent Eu(2), one Sb(1), one Sb(2), and one Sb(4) atom. is represented by the CIF card [CIF]
data_Eu2Sb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.424
_cell_length_b   13.147
_cell_length_c   19.869
_cell_angle_alpha   48.681
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1260.188
_cell_formula_units_Z   8
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  0.951  0.000  0.750  1.0
  Eu  Eu1  1  0.049  0.000  0.250  1.0
  Eu  Eu2  1  0.550  0.753  0.751  1.0
  Eu  Eu3  1  0.450  0.247  0.249  1.0
  Eu  Eu4  1  0.550  0.247  0.749  1.0
  Eu  Eu5  1  0.450  0.753  0.251  1.0
  Eu  Eu6  1  0.930  0.500  0.750  1.0
  Eu  Eu7  1  0.070  0.500  0.250  1.0
  Eu  Eu8  1  0.751  0.874  0.003  1.0
  Eu  Eu9  1  0.249  0.126  0.997  1.0
  Eu  Eu10  1  0.751  0.126  0.497  1.0
  Eu  Eu11  1  0.249  0.874  0.503  1.0
  Eu  Eu12  1  0.745  0.625  0.501  1.0
  Eu  Eu13  1  0.255  0.375  0.499  1.0
  Eu  Eu14  1  0.745  0.375  0.999  1.0
  Eu  Eu15  1  0.255  0.625  0.001  1.0
  Sb  Sb16  1  0.938  0.866  0.161  1.0
  Sb  Sb17  1  0.062  0.134  0.839  1.0
  Sb  Sb18  1  0.938  0.134  0.339  1.0
  Sb  Sb19  1  0.062  0.866  0.661  1.0
  Sb  Sb20  1  0.748  0.699  0.929  1.0
  Sb  Sb21  1  0.252  0.301  0.071  1.0
  Sb  Sb22  1  0.748  0.301  0.571  1.0
  Sb  Sb23  1  0.252  0.699  0.429  1.0
  Sb  Sb24  1  0.755  0.809  0.570  1.0
  Sb  Sb25  1  0.245  0.191  0.430  1.0
  Sb  Sb26  1  0.755  0.191  0.930  1.0
  Sb  Sb27  1  0.245  0.809  0.070  1.0
  Sb  Sb28  1  0.431  0.933  0.847  1.0
  Sb  Sb29  1  0.569  0.067  0.153  1.0
  Sb  Sb30  1  0.431  0.067  0.653  1.0
  Sb  Sb31  1  0.569  0.933  0.347  1.0
  Sb  Sb32  1  0.914  0.391  0.149  1.0
  Sb  Sb33  1  0.086  0.609  0.851  1.0
  Sb  Sb34  1  0.914  0.609  0.351  1.0
  Sb  Sb35  1  0.086  0.391  0.649  1.0
  Sb  Sb36  1  0.416  0.559  0.656  1.0
  Sb  Sb37  1  0.584  0.441  0.344  1.0
  Sb  Sb38  1  0.416  0.441  0.844  1.0
  Sb  Sb39  1  0.584  0.559  0.156  1.0
[/CIF]
.
The compound described by Eu2Sb3 is Magnesium tetraboride-like structured and crystallizes in the monoclinic P2/c space group. There are five inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 8-coordinate geometry to two equivalent Sb(1), two equivalent Sb(2), and four equivalent Sb(4) atoms. In the second Eu site, Eu(2) is bonded in a 8-coordinate geometry to one Sb(2), one Sb(3), one Sb(6), two equivalent Sb(1), two equivalent Sb(4), and two equivalent Sb(5) atoms. In the third Eu site, Eu(3) is bonded in a 8-coordinate geometry to two equivalent Sb(1), two equivalent Sb(3), two equivalent Sb(5), and four equivalent Sb(6) atoms. In the fourth Eu site, Eu(4) is bonded in a 8-coordinate geometry to one Sb(2), one Sb(4), one Sb(6), two equivalent Sb(1), and three equivalent Sb(3) atoms. In the fifth Eu site, Eu(5) is bonded in a 8-coordinate geometry to one Sb(3), one Sb(4), one Sb(6), two equivalent Sb(5), and three equivalent Sb(2) atoms. There are six inequivalent Sb sites. In the first Sb site, Sb(5) is bonded in a 8-coordinate geometry to one Eu(3), two equivalent Eu(2), two equivalent Eu(5), one Sb(1), one Sb(2), and one Sb(6) atom. In the second Sb site, Sb(6) is bonded in a 8-coordinate geometry to one Eu(2), one Eu(4), one Eu(5), two equivalent Eu(3), one Sb(3), one Sb(5), and one Sb(6) atom. In the third Sb site, Sb(1) is bonded in a 9-coordinate geometry to one Eu(1), one Eu(3), two equivalent Eu(2), two equivalent Eu(4), one Sb(3), one Sb(4), and one Sb(5) atom. In the fourth Sb site, Sb(2) is bonded in a 8-coordinate geometry to one Eu(1), one Eu(2), one Eu(4), three equivalent Eu(5), one Sb(4), and one Sb(5) atom. In the fifth Sb site, Sb(3) is bonded in a 8-coordinate geometry to one Eu(2), one Eu(3), one Eu(5), three equivalent Eu(4), one Sb(1), and one Sb(6) atom. In the sixth Sb site, Sb(4) is bonded in a 9-coordinate geometry to one Eu(4), one Eu(5), two equivalent Eu(1), two equivalent Eu(2), one Sb(1), one Sb(2), and one Sb(4) atom. is represented by the CIF card [CIF]
data_Eu2Sb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.424
_cell_length_b   13.147
_cell_length_c   19.869
_cell_angle_alpha   48.681
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1260.188
_cell_formula_units_Z   8
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  0.951  0.000  0.750  1.0
  Eu  Eu1  1  0.049  0.000  0.250  1.0
  Eu  Eu2  1  0.550  0.753  0.751  1.0
  Eu  Eu3  1  0.450  0.247  0.249  1.0
  Eu  Eu4  1  0.550  0.247  0.749  1.0
  Eu  Eu5  1  0.450  0.753  0.251  1.0
  Eu  Eu6  1  0.930  0.500  0.750  1.0
  Eu  Eu7  1  0.070  0.500  0.250  1.0
  Eu  Eu8  1  0.751  0.874  0.003  1.0
  Eu  Eu9  1  0.249  0.126  0.997  1.0
  Eu  Eu10  1  0.751  0.126  0.497  1.0
  Eu  Eu11  1  0.249  0.874  0.503  1.0
  Eu  Eu12  1  0.745  0.625  0.501  1.0
  Eu  Eu13  1  0.255  0.375  0.499  1.0
  Eu  Eu14  1  0.745  0.375  0.999  1.0
  Eu  Eu15  1  0.255  0.625  0.001  1.0
  Sb  Sb16  1  0.938  0.866  0.161  1.0
  Sb  Sb17  1  0.062  0.134  0.839  1.0
  Sb  Sb18  1  0.938  0.134  0.339  1.0
  Sb  Sb19  1  0.062  0.866  0.661  1.0
  Sb  Sb20  1  0.748  0.699  0.929  1.0
  Sb  Sb21  1  0.252  0.301  0.071  1.0
  Sb  Sb22  1  0.748  0.301  0.571  1.0
  Sb  Sb23  1  0.252  0.699  0.429  1.0
  Sb  Sb24  1  0.755  0.809  0.570  1.0
  Sb  Sb25  1  0.245  0.191  0.430  1.0
  Sb  Sb26  1  0.755  0.191  0.930  1.0
  Sb  Sb27  1  0.245  0.809  0.070  1.0
  Sb  Sb28  1  0.431  0.933  0.847  1.0
  Sb  Sb29  1  0.569  0.067  0.153  1.0
  Sb  Sb30  1  0.431  0.067  0.653  1.0
  Sb  Sb31  1  0.569  0.933  0.347  1.0
  Sb  Sb32  1  0.914  0.391  0.149  1.0
  Sb  Sb33  1  0.086  0.609  0.851  1.0
  Sb  Sb34  1  0.914  0.609  0.351  1.0
  Sb  Sb35  1  0.086  0.391  0.649  1.0
  Sb  Sb36  1  0.416  0.559  0.656  1.0
  Sb  Sb37  1  0.584  0.441  0.344  1.0
  Sb  Sb38  1  0.416  0.441  0.844  1.0
  Sb  Sb39  1  0.584  0.559  0.156  1.0
[/CIF]
.