The compound described by Sr2SbN3 crystallizes in the orthorhombic Cmce space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 5-coordinate geometry to two equivalent N(3) and three equivalent N(2) atoms. In the second Sr site, Sr(2) is bonded to two equivalent N(1), two equivalent N(2), and three equivalent N(3) atoms to form distorted SrN7 pentagonal bipyramids that share corners with four equivalent Sr(2)N7 pentagonal bipyramids,  a cornercorner with one Sb(1)N4 tetrahedra, edges with three equivalent Sr(2)N7 pentagonal bipyramids, and edges with four equivalent Sb(1)N4 tetrahedra. Sb(1) is bonded to one N(2), one N(3), and two equivalent N(1) atoms to form distorted SbN4 tetrahedra that share  a cornercorner with one Sr(2)N7 pentagonal bipyramid, corners with two equivalent Sb(1)N4 tetrahedra, and edges with four equivalent Sr(2)N7 pentagonal bipyramids. There are three inequivalent N sites. In the first N site, N(1) is bonded in a 4-coordinate geometry to two equivalent Sr(2) and two equivalent Sb(1) atoms. In the second N site, N(2) is bonded to two equivalent Sr(2), three equivalent Sr(1), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing NSr5Sb octahedra. The corner-sharing octahedral tilt angles range from 9-49°. In the third N site, N(3) is bonded to two equivalent Sr(1), three equivalent Sr(2), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing NSr5Sb octahedra. The corner-sharing octahedral tilt angles range from 9-49°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2SbN3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.572
_cell_length_b   11.720
_cell_length_c   12.464
_cell_angle_alpha   90.000
_cell_angle_beta   90.005
_cell_angle_gamma   153.084
_symmetry_Int_Tables_number   1
_cell_volume   434.593
_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
  Sr  Sr0  1  0.500  0.040  0.856  1.0
  Sr  Sr1  1  0.500  0.539  0.644  1.0
  Sr  Sr2  1  0.500  0.960  0.144  1.0
  Sr  Sr3  1  0.500  0.461  0.356  1.0
  Sr  Sr4  1  0.500  0.867  0.576  1.0
  Sr  Sr5  1  0.500  0.367  0.924  1.0
  Sr  Sr6  1  0.500  0.133  0.424  1.0
  Sr  Sr7  1  0.500  0.633  0.076  1.0
  Sb  Sb8  1  0.500  0.246  0.660  1.0
  Sb  Sb9  1  0.500  0.746  0.840  1.0
  Sb  Sb10  1  0.500  0.754  0.340  1.0
  Sb  Sb11  1  0.500  0.254  0.160  1.0
  N  N12  1  0.000  0.566  0.750  1.0
  N  N13  1  0.000  0.434  0.250  1.0
  N  N14  1  0.501  0.077  0.642  1.0
  N  N15  1  0.499  0.576  0.858  1.0
  N  N16  1  0.499  0.923  0.358  1.0
  N  N17  1  0.501  0.424  0.142  1.0
  N  N18  1  0.500  0.153  0.030  1.0
  N  N19  1  0.500  0.653  0.470  1.0
  N  N20  1  0.500  0.847  0.970  1.0
  N  N21  1  0.500  0.347  0.530  1.0
  N  N22  1  0.000  0.066  0.750  1.0
  N  N23  1  0.000  0.934  0.250  1.0
[/CIF]
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The compound described by Sr2SbN3 crystallizes in the orthorhombic Cmce space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 5-coordinate geometry to two equivalent N(3) and three equivalent N(2) atoms. In the second Sr site, Sr(2) is bonded to two equivalent N(1), two equivalent N(2), and three equivalent N(3) atoms to form distorted SrN7 pentagonal bipyramids that share corners with four equivalent Sr(2)N7 pentagonal bipyramids,  a cornercorner with one Sb(1)N4 tetrahedra, edges with three equivalent Sr(2)N7 pentagonal bipyramids, and edges with four equivalent Sb(1)N4 tetrahedra. Sb(1) is bonded to one N(2), one N(3), and two equivalent N(1) atoms to form distorted SbN4 tetrahedra that share  a cornercorner with one Sr(2)N7 pentagonal bipyramid, corners with two equivalent Sb(1)N4 tetrahedra, and edges with four equivalent Sr(2)N7 pentagonal bipyramids. There are three inequivalent N sites. In the first N site, N(1) is bonded in a 4-coordinate geometry to two equivalent Sr(2) and two equivalent Sb(1) atoms. In the second N site, N(2) is bonded to two equivalent Sr(2), three equivalent Sr(1), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing NSr5Sb octahedra. The corner-sharing octahedral tilt angles range from 9-49°. In the third N site, N(3) is bonded to two equivalent Sr(1), three equivalent Sr(2), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing NSr5Sb octahedra. The corner-sharing octahedral tilt angles range from 9-49°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2SbN3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.572
_cell_length_b   11.720
_cell_length_c   12.464
_cell_angle_alpha   90.000
_cell_angle_beta   90.005
_cell_angle_gamma   153.084
_symmetry_Int_Tables_number   1
_cell_volume   434.593
_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
  Sr  Sr0  1  0.500  0.040  0.856  1.0
  Sr  Sr1  1  0.500  0.539  0.644  1.0
  Sr  Sr2  1  0.500  0.960  0.144  1.0
  Sr  Sr3  1  0.500  0.461  0.356  1.0
  Sr  Sr4  1  0.500  0.867  0.576  1.0
  Sr  Sr5  1  0.500  0.367  0.924  1.0
  Sr  Sr6  1  0.500  0.133  0.424  1.0
  Sr  Sr7  1  0.500  0.633  0.076  1.0
  Sb  Sb8  1  0.500  0.246  0.660  1.0
  Sb  Sb9  1  0.500  0.746  0.840  1.0
  Sb  Sb10  1  0.500  0.754  0.340  1.0
  Sb  Sb11  1  0.500  0.254  0.160  1.0
  N  N12  1  0.000  0.566  0.750  1.0
  N  N13  1  0.000  0.434  0.250  1.0
  N  N14  1  0.501  0.077  0.642  1.0
  N  N15  1  0.499  0.576  0.858  1.0
  N  N16  1  0.499  0.923  0.358  1.0
  N  N17  1  0.501  0.424  0.142  1.0
  N  N18  1  0.500  0.153  0.030  1.0
  N  N19  1  0.500  0.653  0.470  1.0
  N  N20  1  0.500  0.847  0.970  1.0
  N  N21  1  0.500  0.347  0.530  1.0
  N  N22  1  0.000  0.066  0.750  1.0
  N  N23  1  0.000  0.934  0.250  1.0
[/CIF]
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