The material structure described by (Al2Br7)2N2 is Indium-derived structured and crystallizes in the orthorhombic Pna2_1 space group. The structure is zero-dimensional and consists of four ammonia atoms and four Al2Br7 clusters. In each Al2Br7 cluster, there are two inequivalent Al sites. In the first Al site, Al(1) is bonded to one Br(1), one Br(2), one Br(3), and one Br(4) atom to form corner-sharing AlBr4 tetrahedra. In the second Al site, Al(2) is bonded to one Br(4), one Br(5), one Br(6), and one Br(7) atom to form corner-sharing AlBr4 tetrahedra. There are seven inequivalent Br sites. In the first Br site, Br(7) is bonded in a single-bond geometry to one Al(2) atom. In the second Br site, Br(1) is bonded in a single-bond geometry to one Al(1) atom. In the third Br site, Br(2) is bonded in a single-bond geometry to one Al(1) atom. In the fourth Br site, Br(3) is bonded in a single-bond geometry to one Al(1) atom. In the fifth Br site, Br(4) is bonded in a water-like geometry to one Al(1) and one Al(2) atom. In the sixth Br site, Br(5) is bonded in a single-bond geometry to one Al(2) atom. In the seventh Br site, Br(6) is bonded in a single-bond geometry to one Al(2) atom. is represented by the CIF card [CIF]
data_Al2Br7N
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.174
_cell_length_b   11.908
_cell_length_c   13.080
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1584.706
_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
  Al  Al0  1  0.621  0.416  0.883  1.0
  Al  Al1  1  0.379  0.916  0.117  1.0
  Al  Al2  1  0.121  0.916  0.617  1.0
  Al  Al3  1  0.879  0.416  0.383  1.0
  Al  Al4  1  0.566  0.174  0.678  1.0
  Al  Al5  1  0.434  0.674  0.322  1.0
  Al  Al6  1  0.066  0.674  0.822  1.0
  Al  Al7  1  0.934  0.174  0.178  1.0
  Br  Br8  1  0.291  0.978  0.515  1.0
  Br  Br9  1  0.709  0.478  0.485  1.0
  Br  Br10  1  0.791  0.478  0.985  1.0
  Br  Br11  1  0.209  0.978  0.015  1.0
  Br  Br12  1  0.028  0.305  0.469  1.0
  Br  Br13  1  0.972  0.805  0.531  1.0
  Br  Br14  1  0.528  0.805  0.031  1.0
  Br  Br15  1  0.472  0.305  0.969  1.0
  Br  Br16  1  0.021  0.062  0.702  1.0
  Br  Br17  1  0.979  0.562  0.298  1.0
  Br  Br18  1  0.521  0.562  0.798  1.0
  Br  Br19  1  0.479  0.062  0.202  1.0
  Br  Br20  1  0.733  0.300  0.754  1.0
  Br  Br21  1  0.267  0.800  0.246  1.0
  Br  Br22  1  0.233  0.800  0.746  1.0
  Br  Br23  1  0.767  0.300  0.254  1.0
  Br  Br24  1  0.546  0.023  0.787  1.0
  Br  Br25  1  0.454  0.523  0.213  1.0
  Br  Br26  1  0.046  0.523  0.713  1.0
  Br  Br27  1  0.954  0.023  0.287  1.0
  Br  Br28  1  0.376  0.277  0.660  1.0
  Br  Br29  1  0.624  0.777  0.340  1.0
  Br  Br30  1  0.876  0.777  0.840  1.0
  Br  Br31  1  0.124  0.277  0.160  1.0
  Br  Br32  1  0.660  0.121  0.526  1.0
  Br  Br33  1  0.340  0.621  0.474  1.0
  Br  Br34  1  0.160  0.621  0.974  1.0
  Br  Br35  1  0.840  0.121  0.026  1.0
  N  N36  1  0.140  0.261  0.878  1.0
  N  N37  1  0.860  0.761  0.122  1.0
  N  N38  1  0.640  0.761  0.622  1.0
  N  N39  1  0.360  0.261  0.378  1.0
[/CIF]
.
The material structure described by (Al2Br7)2N2 is Indium-derived structured and crystallizes in the orthorhombic Pna2_1 space group. The structure is zero-dimensional and consists of four ammonia atoms and four Al2Br7 clusters. In each Al2Br7 cluster, there are two inequivalent Al sites. In the first Al site, Al(1) is bonded to one Br(1), one Br(2), one Br(3), and one Br(4) atom to form corner-sharing AlBr4 tetrahedra. In the second Al site, Al(2) is bonded to one Br(4), one Br(5), one Br(6), and one Br(7) atom to form corner-sharing AlBr4 tetrahedra. There are seven inequivalent Br sites. In the first Br site, Br(7) is bonded in a single-bond geometry to one Al(2) atom. In the second Br site, Br(1) is bonded in a single-bond geometry to one Al(1) atom. In the third Br site, Br(2) is bonded in a single-bond geometry to one Al(1) atom. In the fourth Br site, Br(3) is bonded in a single-bond geometry to one Al(1) atom. In the fifth Br site, Br(4) is bonded in a water-like geometry to one Al(1) and one Al(2) atom. In the sixth Br site, Br(5) is bonded in a single-bond geometry to one Al(2) atom. In the seventh Br site, Br(6) is bonded in a single-bond geometry to one Al(2) atom. is represented by the CIF card [CIF]
data_Al2Br7N
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.174
_cell_length_b   11.908
_cell_length_c   13.080
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1584.706
_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
  Al  Al0  1  0.621  0.416  0.883  1.0
  Al  Al1  1  0.379  0.916  0.117  1.0
  Al  Al2  1  0.121  0.916  0.617  1.0
  Al  Al3  1  0.879  0.416  0.383  1.0
  Al  Al4  1  0.566  0.174  0.678  1.0
  Al  Al5  1  0.434  0.674  0.322  1.0
  Al  Al6  1  0.066  0.674  0.822  1.0
  Al  Al7  1  0.934  0.174  0.178  1.0
  Br  Br8  1  0.291  0.978  0.515  1.0
  Br  Br9  1  0.709  0.478  0.485  1.0
  Br  Br10  1  0.791  0.478  0.985  1.0
  Br  Br11  1  0.209  0.978  0.015  1.0
  Br  Br12  1  0.028  0.305  0.469  1.0
  Br  Br13  1  0.972  0.805  0.531  1.0
  Br  Br14  1  0.528  0.805  0.031  1.0
  Br  Br15  1  0.472  0.305  0.969  1.0
  Br  Br16  1  0.021  0.062  0.702  1.0
  Br  Br17  1  0.979  0.562  0.298  1.0
  Br  Br18  1  0.521  0.562  0.798  1.0
  Br  Br19  1  0.479  0.062  0.202  1.0
  Br  Br20  1  0.733  0.300  0.754  1.0
  Br  Br21  1  0.267  0.800  0.246  1.0
  Br  Br22  1  0.233  0.800  0.746  1.0
  Br  Br23  1  0.767  0.300  0.254  1.0
  Br  Br24  1  0.546  0.023  0.787  1.0
  Br  Br25  1  0.454  0.523  0.213  1.0
  Br  Br26  1  0.046  0.523  0.713  1.0
  Br  Br27  1  0.954  0.023  0.287  1.0
  Br  Br28  1  0.376  0.277  0.660  1.0
  Br  Br29  1  0.624  0.777  0.340  1.0
  Br  Br30  1  0.876  0.777  0.840  1.0
  Br  Br31  1  0.124  0.277  0.160  1.0
  Br  Br32  1  0.660  0.121  0.526  1.0
  Br  Br33  1  0.340  0.621  0.474  1.0
  Br  Br34  1  0.160  0.621  0.974  1.0
  Br  Br35  1  0.840  0.121  0.026  1.0
  N  N36  1  0.140  0.261  0.878  1.0
  N  N37  1  0.860  0.761  0.122  1.0
  N  N38  1  0.640  0.761  0.622  1.0
  N  N39  1  0.360  0.261  0.378  1.0
[/CIF]
.