The structure described by SrB12H12 is Ammonia-like structured and crystallizes in the trigonal P31c space group. The structure is zero-dimensional and consists of six hydridoboron(2.) (singlet) molecules and two Sr(BH)9 clusters. In each Sr(BH)9 cluster, Sr(1) is bonded in a 9-coordinate geometry to three equivalent H(1), three equivalent H(2), and three equivalent H(3) atoms. There are three inequivalent B sites. In the first B site, B(1) is bonded in a single-bond geometry to one H(1) atom. In the second B site, B(2) is bonded in a single-bond geometry to one H(2) atom. In the third B site, B(3) is bonded in a single-bond geometry to one H(3) atom. There are three inequivalent H sites. In the first H site, H(2) is bonded in a distorted single-bond geometry to one Sr(1) and one B(2) atom. In the second H site, H(3) is bonded in a distorted single-bond geometry to one Sr(1) and one B(3) atom. In the third H site, H(1) is bonded in a distorted single-bond geometry to one Sr(1) and one B(1) atom. is represented by the CIF file [CIF]
data_Sr(BH)12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.038
_cell_length_b   7.037
_cell_length_c   11.436
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   490.509
_cell_formula_units_Z   2
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
  Sr  Sr0  1  0.667  0.333  0.251  1.0
  Sr  Sr1  1  0.333  0.667  0.751  1.0
  B  B2  1  0.928  0.400  0.595  1.0
  B  B3  1  0.472  0.072  0.595  1.0
  B  B4  1  0.600  0.528  0.595  1.0
  B  B5  1  0.528  0.600  0.095  1.0
  B  B6  1  0.400  0.928  0.095  1.0
  B  B7  1  0.072  0.472  0.095  1.0
  B  B8  1  0.504  0.292  0.506  1.0
  B  B9  1  0.787  0.496  0.506  1.0
  B  B10  1  0.708  0.213  0.506  1.0
  B  B11  1  0.213  0.708  0.006  1.0
  B  B12  1  0.292  0.504  0.006  1.0
  B  B13  1  0.496  0.787  0.006  1.0
  B  B14  1  0.828  0.373  0.740  1.0
  B  B15  1  0.545  0.172  0.740  1.0
  B  B16  1  0.627  0.455  0.740  1.0
  B  B17  1  0.455  0.627  0.240  1.0
  B  B18  1  0.373  0.828  0.240  1.0
  B  B19  1  0.172  0.545  0.240  1.0
  B  B20  1  0.404  0.267  0.651  1.0
  B  B21  1  0.863  0.596  0.651  1.0
  B  B22  1  0.733  0.137  0.651  1.0
  B  B23  1  0.137  0.733  0.151  1.0
  B  B24  1  0.267  0.404  0.151  1.0
  B  B25  1  0.596  0.863  0.151  1.0
  H  H26  1  0.112  0.446  0.571  1.0
  H  H27  1  0.334  0.888  0.571  1.0
  H  H28  1  0.554  0.666  0.571  1.0
  H  H29  1  0.666  0.554  0.071  1.0
  H  H30  1  0.446  0.112  0.071  1.0
  H  H31  1  0.888  0.334  0.071  1.0
  H  H32  1  0.387  0.261  0.424  1.0
  H  H33  1  0.874  0.613  0.424  1.0
  H  H34  1  0.739  0.126  0.424  1.0
  H  H35  1  0.126  0.739  0.924  1.0
  H  H36  1  0.261  0.387  0.924  1.0
  H  H37  1  0.613  0.874  0.924  1.0
  H  H38  1  0.939  0.397  0.824  1.0
  H  H39  1  0.458  0.061  0.824  1.0
  H  H40  1  0.603  0.542  0.824  1.0
  H  H41  1  0.542  0.603  0.324  1.0
  H  H42  1  0.397  0.939  0.324  1.0
  H  H43  1  0.061  0.458  0.324  1.0
  H  H44  1  0.220  0.221  0.673  1.0
  H  H45  1  0.001  0.780  0.673  1.0
  H  H46  1  0.779  0.999  0.673  1.0
  H  H47  1  0.999  0.779  0.173  1.0
  H  H48  1  0.221  0.220  0.173  1.0
  H  H49  1  0.780  0.001  0.173  1.0
[/CIF]
.
The structure described by SrB12H12 is Ammonia-like structured and crystallizes in the trigonal P31c space group. The structure is zero-dimensional and consists of six hydridoboron(2.) (singlet) molecules and two Sr(BH)9 clusters. In each Sr(BH)9 cluster, Sr(1) is bonded in a 9-coordinate geometry to three equivalent H(1), three equivalent H(2), and three equivalent H(3) atoms. There are three inequivalent B sites. In the first B site, B(1) is bonded in a single-bond geometry to one H(1) atom. In the second B site, B(2) is bonded in a single-bond geometry to one H(2) atom. In the third B site, B(3) is bonded in a single-bond geometry to one H(3) atom. There are three inequivalent H sites. In the first H site, H(2) is bonded in a distorted single-bond geometry to one Sr(1) and one B(2) atom. In the second H site, H(3) is bonded in a distorted single-bond geometry to one Sr(1) and one B(3) atom. In the third H site, H(1) is bonded in a distorted single-bond geometry to one Sr(1) and one B(1) atom. is represented by the CIF file [CIF]
data_Sr(BH)12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.038
_cell_length_b   7.037
_cell_length_c   11.436
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   490.509
_cell_formula_units_Z   2
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
  Sr  Sr0  1  0.667  0.333  0.251  1.0
  Sr  Sr1  1  0.333  0.667  0.751  1.0
  B  B2  1  0.928  0.400  0.595  1.0
  B  B3  1  0.472  0.072  0.595  1.0
  B  B4  1  0.600  0.528  0.595  1.0
  B  B5  1  0.528  0.600  0.095  1.0
  B  B6  1  0.400  0.928  0.095  1.0
  B  B7  1  0.072  0.472  0.095  1.0
  B  B8  1  0.504  0.292  0.506  1.0
  B  B9  1  0.787  0.496  0.506  1.0
  B  B10  1  0.708  0.213  0.506  1.0
  B  B11  1  0.213  0.708  0.006  1.0
  B  B12  1  0.292  0.504  0.006  1.0
  B  B13  1  0.496  0.787  0.006  1.0
  B  B14  1  0.828  0.373  0.740  1.0
  B  B15  1  0.545  0.172  0.740  1.0
  B  B16  1  0.627  0.455  0.740  1.0
  B  B17  1  0.455  0.627  0.240  1.0
  B  B18  1  0.373  0.828  0.240  1.0
  B  B19  1  0.172  0.545  0.240  1.0
  B  B20  1  0.404  0.267  0.651  1.0
  B  B21  1  0.863  0.596  0.651  1.0
  B  B22  1  0.733  0.137  0.651  1.0
  B  B23  1  0.137  0.733  0.151  1.0
  B  B24  1  0.267  0.404  0.151  1.0
  B  B25  1  0.596  0.863  0.151  1.0
  H  H26  1  0.112  0.446  0.571  1.0
  H  H27  1  0.334  0.888  0.571  1.0
  H  H28  1  0.554  0.666  0.571  1.0
  H  H29  1  0.666  0.554  0.071  1.0
  H  H30  1  0.446  0.112  0.071  1.0
  H  H31  1  0.888  0.334  0.071  1.0
  H  H32  1  0.387  0.261  0.424  1.0
  H  H33  1  0.874  0.613  0.424  1.0
  H  H34  1  0.739  0.126  0.424  1.0
  H  H35  1  0.126  0.739  0.924  1.0
  H  H36  1  0.261  0.387  0.924  1.0
  H  H37  1  0.613  0.874  0.924  1.0
  H  H38  1  0.939  0.397  0.824  1.0
  H  H39  1  0.458  0.061  0.824  1.0
  H  H40  1  0.603  0.542  0.824  1.0
  H  H41  1  0.542  0.603  0.324  1.0
  H  H42  1  0.397  0.939  0.324  1.0
  H  H43  1  0.061  0.458  0.324  1.0
  H  H44  1  0.220  0.221  0.673  1.0
  H  H45  1  0.001  0.780  0.673  1.0
  H  H46  1  0.779  0.999  0.673  1.0
  H  H47  1  0.999  0.779  0.173  1.0
  H  H48  1  0.221  0.220  0.173  1.0
  H  H49  1  0.780  0.001  0.173  1.0
[/CIF]
.