The structure described by Eu(BH4)2 crystallizes in the monoclinic P2_1/c space group. Eu(1) is bonded in a 11-coordinate geometry to one H(2), one H(3), one H(4), one H(6), one H(7), two equivalent H(1), two equivalent H(5), and two equivalent H(8) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded in a tetrahedral geometry to one H(1), one H(2), one H(3), and one H(4) atom. In the second B site, B(2) is bonded in a tetrahedral geometry to one H(5), one H(6), one H(7), and one H(8) atom. There are eight inequivalent H sites. In the first H site, H(6) is bonded in a single-bond geometry to one Eu(1) and one B(2) atom. In the second H site, H(7) is bonded in a distorted single-bond geometry to one Eu(1) and one B(2) atom. In the third H site, H(8) is bonded in a single-bond geometry to two equivalent Eu(1) and one B(2) atom. In the fourth H site, H(1) is bonded in a distorted single-bond geometry to two equivalent Eu(1) and one B(1) atom. In the fifth H site, H(2) is bonded in a distorted single-bond geometry to one Eu(1) and one B(1) atom. In the sixth H site, H(3) is bonded in a distorted single-bond geometry to one Eu(1) and one B(1) atom. In the seventh H site, H(4) is bonded in a distorted single-bond geometry to one Eu(1) and one B(1) atom. In the eighth H site, H(5) is bonded in a single-bond geometry to two equivalent Eu(1) and one B(2) atom. is represented by the CIF file [CIF]
data_Eu(BH4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.503
_cell_length_b   7.431
_cell_length_c   8.140
_cell_angle_alpha   90.000
_cell_angle_beta   91.960
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   453.588
_cell_formula_units_Z   4
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  0.261  0.071  0.636  1.0
  Eu  Eu1  1  0.739  0.571  0.864  1.0
  Eu  Eu2  1  0.739  0.929  0.364  1.0
  Eu  Eu3  1  0.261  0.429  0.136  1.0
  B  B4  1  0.984  0.711  0.182  1.0
  B  B5  1  0.016  0.211  0.318  1.0
  B  B6  1  0.016  0.289  0.818  1.0
  B  B7  1  0.984  0.789  0.682  1.0
  B  B8  1  0.504  0.734  0.108  1.0
  B  B9  1  0.496  0.234  0.392  1.0
  B  B10  1  0.496  0.266  0.892  1.0
  B  B11  1  0.504  0.766  0.608  1.0
  H  H12  1  0.003  0.636  0.048  1.0
  H  H13  1  0.997  0.136  0.452  1.0
  H  H14  1  0.997  0.364  0.952  1.0
  H  H15  1  0.003  0.864  0.548  1.0
  H  H16  1  0.861  0.640  0.253  1.0
  H  H17  1  0.139  0.140  0.247  1.0
  H  H18  1  0.139  0.360  0.747  1.0
  H  H19  1  0.861  0.860  0.753  1.0
  H  H20  1  0.122  0.695  0.266  1.0
  H  H21  1  0.878  0.195  0.234  1.0
  H  H22  1  0.878  0.305  0.734  1.0
  H  H23  1  0.122  0.805  0.766  1.0
  H  H24  1  0.960  0.870  0.152  1.0
  H  H25  1  0.040  0.370  0.348  1.0
  H  H26  1  0.040  0.130  0.848  1.0
  H  H27  1  0.960  0.630  0.652  1.0
  H  H28  1  0.566  0.581  0.130  1.0
  H  H29  1  0.434  0.081  0.370  1.0
  H  H30  1  0.434  0.419  0.870  1.0
  H  H31  1  0.566  0.919  0.630  1.0
  H  H32  1  0.370  0.731  0.018  1.0
  H  H33  1  0.630  0.231  0.482  1.0
  H  H34  1  0.630  0.269  0.982  1.0
  H  H35  1  0.370  0.769  0.518  1.0
  H  H36  1  0.462  0.792  0.242  1.0
  H  H37  1  0.538  0.292  0.258  1.0
  H  H38  1  0.538  0.208  0.758  1.0
  H  H39  1  0.462  0.708  0.742  1.0
  H  H40  1  0.617  0.831  0.046  1.0
  H  H41  1  0.383  0.331  0.454  1.0
  H  H42  1  0.383  0.169  0.954  1.0
  H  H43  1  0.617  0.669  0.546  1.0
[/CIF]
.
The structure described by Eu(BH4)2 crystallizes in the monoclinic P2_1/c space group. Eu(1) is bonded in a 11-coordinate geometry to one H(2), one H(3), one H(4), one H(6), one H(7), two equivalent H(1), two equivalent H(5), and two equivalent H(8) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded in a tetrahedral geometry to one H(1), one H(2), one H(3), and one H(4) atom. In the second B site, B(2) is bonded in a tetrahedral geometry to one H(5), one H(6), one H(7), and one H(8) atom. There are eight inequivalent H sites. In the first H site, H(6) is bonded in a single-bond geometry to one Eu(1) and one B(2) atom. In the second H site, H(7) is bonded in a distorted single-bond geometry to one Eu(1) and one B(2) atom. In the third H site, H(8) is bonded in a single-bond geometry to two equivalent Eu(1) and one B(2) atom. In the fourth H site, H(1) is bonded in a distorted single-bond geometry to two equivalent Eu(1) and one B(1) atom. In the fifth H site, H(2) is bonded in a distorted single-bond geometry to one Eu(1) and one B(1) atom. In the sixth H site, H(3) is bonded in a distorted single-bond geometry to one Eu(1) and one B(1) atom. In the seventh H site, H(4) is bonded in a distorted single-bond geometry to one Eu(1) and one B(1) atom. In the eighth H site, H(5) is bonded in a single-bond geometry to two equivalent Eu(1) and one B(2) atom. is represented by the CIF file [CIF]
data_Eu(BH4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.503
_cell_length_b   7.431
_cell_length_c   8.140
_cell_angle_alpha   90.000
_cell_angle_beta   91.960
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   453.588
_cell_formula_units_Z   4
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  0.261  0.071  0.636  1.0
  Eu  Eu1  1  0.739  0.571  0.864  1.0
  Eu  Eu2  1  0.739  0.929  0.364  1.0
  Eu  Eu3  1  0.261  0.429  0.136  1.0
  B  B4  1  0.984  0.711  0.182  1.0
  B  B5  1  0.016  0.211  0.318  1.0
  B  B6  1  0.016  0.289  0.818  1.0
  B  B7  1  0.984  0.789  0.682  1.0
  B  B8  1  0.504  0.734  0.108  1.0
  B  B9  1  0.496  0.234  0.392  1.0
  B  B10  1  0.496  0.266  0.892  1.0
  B  B11  1  0.504  0.766  0.608  1.0
  H  H12  1  0.003  0.636  0.048  1.0
  H  H13  1  0.997  0.136  0.452  1.0
  H  H14  1  0.997  0.364  0.952  1.0
  H  H15  1  0.003  0.864  0.548  1.0
  H  H16  1  0.861  0.640  0.253  1.0
  H  H17  1  0.139  0.140  0.247  1.0
  H  H18  1  0.139  0.360  0.747  1.0
  H  H19  1  0.861  0.860  0.753  1.0
  H  H20  1  0.122  0.695  0.266  1.0
  H  H21  1  0.878  0.195  0.234  1.0
  H  H22  1  0.878  0.305  0.734  1.0
  H  H23  1  0.122  0.805  0.766  1.0
  H  H24  1  0.960  0.870  0.152  1.0
  H  H25  1  0.040  0.370  0.348  1.0
  H  H26  1  0.040  0.130  0.848  1.0
  H  H27  1  0.960  0.630  0.652  1.0
  H  H28  1  0.566  0.581  0.130  1.0
  H  H29  1  0.434  0.081  0.370  1.0
  H  H30  1  0.434  0.419  0.870  1.0
  H  H31  1  0.566  0.919  0.630  1.0
  H  H32  1  0.370  0.731  0.018  1.0
  H  H33  1  0.630  0.231  0.482  1.0
  H  H34  1  0.630  0.269  0.982  1.0
  H  H35  1  0.370  0.769  0.518  1.0
  H  H36  1  0.462  0.792  0.242  1.0
  H  H37  1  0.538  0.292  0.258  1.0
  H  H38  1  0.538  0.208  0.758  1.0
  H  H39  1  0.462  0.708  0.742  1.0
  H  H40  1  0.617  0.831  0.046  1.0
  H  H41  1  0.383  0.331  0.454  1.0
  H  H42  1  0.383  0.169  0.954  1.0
  H  H43  1  0.617  0.669  0.546  1.0
[/CIF]
.