The material structure described by AsN9 is Indium-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four AsN9 clusters. As(1) is bonded in a distorted T-shaped geometry to one N(1), one N(6), and one N(8) atom. There are nine inequivalent N sites. In the first N site, N(1) is bonded in a bent 120 degrees geometry to one As(1) and one N(3) atom. In the second N site, N(2) is bonded in a single-bond geometry to one N(7) atom. In the third N site, N(3) is bonded in a linear geometry to one N(1) and one N(5) atom. In the fourth N site, N(4) is bonded in a single-bond geometry to one N(9) atom. In the fifth N site, N(5) is bonded in a single-bond geometry to one N(3) atom. In the sixth N site, N(6) is bonded in a bent 120 degrees geometry to one As(1) and one N(9) atom. In the seventh N site, N(7) is bonded in a linear geometry to one N(2) and one N(8) atom. In the eighth N site, N(8) is bonded in a bent 120 degrees geometry to one As(1) and one N(7) atom. In the ninth N site, N(9) is bonded in a linear geometry to one N(4) and one N(6) atom. is represented by the CIF file [CIF]
data_AsN9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.843
_cell_length_b   7.064
_cell_length_c   7.408
_cell_angle_alpha   72.771
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   591.887
_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
  As  As0  1  0.553  0.378  0.287  1.0
  As  As1  1  0.447  0.622  0.713  1.0
  As  As2  1  0.053  0.122  0.713  1.0
  As  As3  1  0.947  0.878  0.287  1.0
  N  N4  1  0.802  0.850  0.173  1.0
  N  N5  1  0.183  0.518  0.477  1.0
  N  N6  1  0.223  0.022  0.974  1.0
  N  N7  1  0.521  0.921  0.219  1.0
  N  N8  1  0.251  0.908  0.114  1.0
  N  N9  1  0.982  0.137  0.111  1.0
  N  N10  1  0.221  0.022  0.500  1.0
  N  N11  1  0.518  0.637  0.111  1.0
  N  N12  1  0.317  0.018  0.477  1.0
  N  N13  1  0.617  0.476  0.486  1.0
  N  N14  1  0.479  0.079  0.781  1.0
  N  N15  1  0.698  0.350  0.173  1.0
  N  N16  1  0.779  0.978  0.500  1.0
  N  N17  1  0.117  0.024  0.514  1.0
  N  N18  1  0.198  0.150  0.827  1.0
  N  N19  1  0.749  0.092  0.886  1.0
  N  N20  1  0.021  0.720  0.829  1.0
  N  N21  1  0.883  0.976  0.486  1.0
  N  N22  1  0.018  0.863  0.889  1.0
  N  N23  1  0.277  0.522  0.974  1.0
  N  N24  1  0.383  0.524  0.514  1.0
  N  N25  1  0.777  0.978  0.026  1.0
  N  N26  1  0.482  0.363  0.889  1.0
  N  N27  1  0.302  0.650  0.827  1.0
  N  N28  1  0.683  0.982  0.523  1.0
  N  N29  1  0.479  0.220  0.829  1.0
  N  N30  1  0.021  0.579  0.781  1.0
  N  N31  1  0.279  0.522  0.500  1.0
  N  N32  1  0.249  0.408  0.114  1.0
  N  N33  1  0.723  0.478  0.026  1.0
  N  N34  1  0.751  0.592  0.886  1.0
  N  N35  1  0.521  0.780  0.171  1.0
  N  N36  1  0.721  0.478  0.500  1.0
  N  N37  1  0.817  0.482  0.523  1.0
  N  N38  1  0.979  0.421  0.219  1.0
  N  N39  1  0.979  0.280  0.171  1.0
[/CIF]
.
The material structure described by AsN9 is Indium-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four AsN9 clusters. As(1) is bonded in a distorted T-shaped geometry to one N(1), one N(6), and one N(8) atom. There are nine inequivalent N sites. In the first N site, N(1) is bonded in a bent 120 degrees geometry to one As(1) and one N(3) atom. In the second N site, N(2) is bonded in a single-bond geometry to one N(7) atom. In the third N site, N(3) is bonded in a linear geometry to one N(1) and one N(5) atom. In the fourth N site, N(4) is bonded in a single-bond geometry to one N(9) atom. In the fifth N site, N(5) is bonded in a single-bond geometry to one N(3) atom. In the sixth N site, N(6) is bonded in a bent 120 degrees geometry to one As(1) and one N(9) atom. In the seventh N site, N(7) is bonded in a linear geometry to one N(2) and one N(8) atom. In the eighth N site, N(8) is bonded in a bent 120 degrees geometry to one As(1) and one N(7) atom. In the ninth N site, N(9) is bonded in a linear geometry to one N(4) and one N(6) atom. is represented by the CIF file [CIF]
data_AsN9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.843
_cell_length_b   7.064
_cell_length_c   7.408
_cell_angle_alpha   72.771
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   591.887
_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
  As  As0  1  0.553  0.378  0.287  1.0
  As  As1  1  0.447  0.622  0.713  1.0
  As  As2  1  0.053  0.122  0.713  1.0
  As  As3  1  0.947  0.878  0.287  1.0
  N  N4  1  0.802  0.850  0.173  1.0
  N  N5  1  0.183  0.518  0.477  1.0
  N  N6  1  0.223  0.022  0.974  1.0
  N  N7  1  0.521  0.921  0.219  1.0
  N  N8  1  0.251  0.908  0.114  1.0
  N  N9  1  0.982  0.137  0.111  1.0
  N  N10  1  0.221  0.022  0.500  1.0
  N  N11  1  0.518  0.637  0.111  1.0
  N  N12  1  0.317  0.018  0.477  1.0
  N  N13  1  0.617  0.476  0.486  1.0
  N  N14  1  0.479  0.079  0.781  1.0
  N  N15  1  0.698  0.350  0.173  1.0
  N  N16  1  0.779  0.978  0.500  1.0
  N  N17  1  0.117  0.024  0.514  1.0
  N  N18  1  0.198  0.150  0.827  1.0
  N  N19  1  0.749  0.092  0.886  1.0
  N  N20  1  0.021  0.720  0.829  1.0
  N  N21  1  0.883  0.976  0.486  1.0
  N  N22  1  0.018  0.863  0.889  1.0
  N  N23  1  0.277  0.522  0.974  1.0
  N  N24  1  0.383  0.524  0.514  1.0
  N  N25  1  0.777  0.978  0.026  1.0
  N  N26  1  0.482  0.363  0.889  1.0
  N  N27  1  0.302  0.650  0.827  1.0
  N  N28  1  0.683  0.982  0.523  1.0
  N  N29  1  0.479  0.220  0.829  1.0
  N  N30  1  0.021  0.579  0.781  1.0
  N  N31  1  0.279  0.522  0.500  1.0
  N  N32  1  0.249  0.408  0.114  1.0
  N  N33  1  0.723  0.478  0.026  1.0
  N  N34  1  0.751  0.592  0.886  1.0
  N  N35  1  0.521  0.780  0.171  1.0
  N  N36  1  0.721  0.478  0.500  1.0
  N  N37  1  0.817  0.482  0.523  1.0
  N  N38  1  0.979  0.421  0.219  1.0
  N  N39  1  0.979  0.280  0.171  1.0
[/CIF]
.