The material structure described by Sr3(BiN2)2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one N(2) and four equivalent N(1) atoms to form a mixture of corner and edge-sharing SrN5 square pyramids. In the second Sr site, Sr(2) is bonded in a distorted bent 120 degrees geometry to two equivalent N(1) and two equivalent N(2) atoms. Bi(1) is bonded in a 3-coordinate geometry to one N(1) and two equivalent N(2) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to one Sr(2), four equivalent Sr(1), and one Bi(1) atom. In the second N site, N(2) is bonded to one Sr(1), one Sr(2), and two equivalent Bi(1) atoms to form corner-sharing NSr2Bi2 trigonal pyramids. is represented by the CIF card [CIF]
data_Sr3(BiN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.531
_cell_length_b   12.480
_cell_length_c   5.589
_cell_angle_alpha   90.000
_cell_angle_beta   96.616
_cell_angle_gamma   137.011
_symmetry_Int_Tables_number   1
_cell_volume   399.895
_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  0.220  0.012  0.062  1.0
  Sr  Sr1  1  0.780  0.791  0.438  1.0
  Sr  Sr2  1  0.780  0.988  0.938  1.0
  Sr  Sr3  1  0.220  0.209  0.562  1.0
  Sr  Sr4  1  0.000  0.670  0.750  1.0
  Sr  Sr5  1  0.000  0.330  0.250  1.0
  Bi  Bi6  1  0.606  0.202  0.656  1.0
  Bi  Bi7  1  0.394  0.596  0.844  1.0
  Bi  Bi8  1  0.394  0.798  0.344  1.0
  Bi  Bi9  1  0.606  0.404  0.156  1.0
  N  N10  1  0.223  0.003  0.578  1.0
  N  N11  1  0.777  0.780  0.922  1.0
  N  N12  1  0.777  0.997  0.422  1.0
  N  N13  1  0.223  0.220  0.078  1.0
  N  N14  1  0.657  0.257  0.056  1.0
  N  N15  1  0.343  0.600  0.444  1.0
  N  N16  1  0.343  0.743  0.944  1.0
  N  N17  1  0.657  0.400  0.556  1.0
[/CIF]
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The material structure described by Sr3(BiN2)2 crystallizes in the monoclinic C2/c space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one N(2) and four equivalent N(1) atoms to form a mixture of corner and edge-sharing SrN5 square pyramids. In the second Sr site, Sr(2) is bonded in a distorted bent 120 degrees geometry to two equivalent N(1) and two equivalent N(2) atoms. Bi(1) is bonded in a 3-coordinate geometry to one N(1) and two equivalent N(2) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to one Sr(2), four equivalent Sr(1), and one Bi(1) atom. In the second N site, N(2) is bonded to one Sr(1), one Sr(2), and two equivalent Bi(1) atoms to form corner-sharing NSr2Bi2 trigonal pyramids. is represented by the CIF card [CIF]
data_Sr3(BiN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.531
_cell_length_b   12.480
_cell_length_c   5.589
_cell_angle_alpha   90.000
_cell_angle_beta   96.616
_cell_angle_gamma   137.011
_symmetry_Int_Tables_number   1
_cell_volume   399.895
_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  0.220  0.012  0.062  1.0
  Sr  Sr1  1  0.780  0.791  0.438  1.0
  Sr  Sr2  1  0.780  0.988  0.938  1.0
  Sr  Sr3  1  0.220  0.209  0.562  1.0
  Sr  Sr4  1  0.000  0.670  0.750  1.0
  Sr  Sr5  1  0.000  0.330  0.250  1.0
  Bi  Bi6  1  0.606  0.202  0.656  1.0
  Bi  Bi7  1  0.394  0.596  0.844  1.0
  Bi  Bi8  1  0.394  0.798  0.344  1.0
  Bi  Bi9  1  0.606  0.404  0.156  1.0
  N  N10  1  0.223  0.003  0.578  1.0
  N  N11  1  0.777  0.780  0.922  1.0
  N  N12  1  0.777  0.997  0.422  1.0
  N  N13  1  0.223  0.220  0.078  1.0
  N  N14  1  0.657  0.257  0.056  1.0
  N  N15  1  0.343  0.600  0.444  1.0
  N  N16  1  0.343  0.743  0.944  1.0
  N  N17  1  0.657  0.400  0.556  1.0
[/CIF]
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