The structure described by Mg8(MnN3)3 crystallizes in the monoclinic P2/c space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to one N(3), one N(4), and three equivalent N(1) atoms to form MgN5 square pyramids that share  a cornercorner with one Mg(2)N6 octahedra, corners with two equivalent Mg(1)N5 square pyramids, corners with three equivalent Mg(4)N5 square pyramids,  a cornercorner with one Mg(3)N5 trigonal bipyramid, edges with two equivalent Mg(2)N6 octahedra, edges with two equivalent Mg(1)N5 square pyramids, and edges with two equivalent Mg(3)N5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 6°. In the second Mg site, Mg(2) is bonded to one N(1), one N(2), two equivalent N(4), and two equivalent N(5) atoms to form MgN6 octahedra that share corners with three equivalent Mg(2)N6 octahedra,  a cornercorner with one Mg(1)N5 square pyramid,  a cornercorner with one Mg(3)N5 trigonal bipyramid,  an edgeedge with one Mg(2)N6 octahedra, edges with two equivalent Mg(1)N5 square pyramids, edges with four equivalent Mg(4)N5 square pyramids, and edges with two equivalent Mg(3)N5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 7-10°. In the third Mg site, Mg(3) is bonded to one N(1), one N(2), one N(5), and two equivalent N(3) atoms to form MgN5 trigonal bipyramids that share  a cornercorner with one Mg(2)N6 octahedra,  a cornercorner with one Mg(1)N5 square pyramid, corners with three equivalent Mg(3)N5 trigonal bipyramids, edges with two equivalent Mg(2)N6 octahedra, edges with two equivalent Mg(1)N5 square pyramids, and edges with two equivalent Mg(4)N5 square pyramids. The corner-sharing octahedral tilt angles are 12°. In the fourth Mg site, Mg(4) is bonded to one N(3), two equivalent N(4), and two equivalent N(5) atoms to form distorted MgN5 square pyramids that share corners with two equivalent Mg(4)N5 square pyramids, corners with three equivalent Mg(1)N5 square pyramids, edges with four equivalent Mg(2)N6 octahedra,  an edgeedge with one Mg(4)N5 square pyramid, and edges with two equivalent Mg(3)N5 trigonal bipyramids. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 3-coordinate geometry to two equivalent N(2) and two equivalent N(4) atoms. In the second Mn site, Mn(2) is bonded in a distorted trigonal planar geometry to one N(1), one N(3), and one N(5) atom. There are five inequivalent N sites. In the first N site, N(4) is bonded to one Mg(1), two equivalent Mg(2), two equivalent Mg(4), and one Mn(1) atom to form distorted NMg5Mn octahedra that share  a cornercorner with one N(1)Mg5Mn octahedra, corners with three equivalent N(4)Mg5Mn octahedra,  an edgeedge with one N(4)Mg5Mn octahedra, edges with two equivalent N(2)Mg4Mn2 octahedra, edges with two equivalent N(1)Mg5Mn octahedra, and edges with four equivalent N(5)Mg5Mn octahedra. The corner-sharing octahedral tilt angles range from 5-18°. In the second N site, N(5) is bonded to one Mg(3), two equivalent Mg(2), two equivalent Mg(4), and one Mn(2) atom to form distorted NMg5Mn octahedra that share  a cornercorner with one N(2)Mg4Mn2 octahedra, corners with two equivalent N(1)Mg5Mn octahedra, corners with two equivalent N(5)Mg5Mn octahedra,  an edgeedge with one N(2)Mg4Mn2 octahedra,  an edgeedge with one N(1)Mg5Mn octahedra,  an edgeedge with one N(5)Mg5Mn octahedra, and edges with four equivalent N(4)Mg5Mn octahedra. The corner-sharing octahedral tilt angles range from 2-13°. In the third N site, N(1) is bonded to one Mg(2), one Mg(3), three equivalent Mg(1), and one Mn(2) atom to form NMg5Mn octahedra that share  a cornercorner with one N(4)Mg5Mn octahedra, corners with two equivalent N(1)Mg5Mn octahedra, corners with two equivalent N(5)Mg5Mn octahedra,  an edgeedge with one N(2)Mg4Mn2 octahedra,  an edgeedge with one N(5)Mg5Mn octahedra, edges with two equivalent N(1)Mg5Mn octahedra, and edges with two equivalent N(4)Mg5Mn octahedra. The corner-sharing octahedral tilt angles range from 2-9°. In the fourth N site, N(2) is bonded to two equivalent Mg(2), two equivalent Mg(3), and two equivalent Mn(1) atoms to form distorted NMg4Mn2 octahedra that share corners with two equivalent N(2)Mg4Mn2 octahedra, corners with two equivalent N(5)Mg5Mn octahedra, edges with two equivalent N(1)Mg5Mn octahedra, edges with two equivalent N(5)Mg5Mn octahedra, and edges with four equivalent N(4)Mg5Mn octahedra. The corner-sharing octahedral tilt angles range from 0-13°. In the fifth N site, N(3) is bonded in a 5-coordinate geometry to one Mg(1), one Mg(4), two equivalent Mg(3), and one Mn(2) atom. is represented by the CIF card [CIF]
data_Mg8(MnN3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.402
_cell_length_b   7.011
_cell_length_c   14.958
_cell_angle_alpha   97.234
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   458.023
_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
  Mg  Mg0  1  0.750  0.493  0.922  1.0
  Mg  Mg1  1  0.750  0.007  0.578  1.0
  Mg  Mg2  1  0.250  0.507  0.078  1.0
  Mg  Mg3  1  0.250  0.993  0.422  1.0
  Mg  Mg4  1  0.754  0.050  0.286  1.0
  Mg  Mg5  1  0.754  0.450  0.214  1.0
  Mg  Mg6  1  0.246  0.950  0.714  1.0
  Mg  Mg7  1  0.246  0.550  0.786  1.0
  Mg  Mg8  1  0.756  0.808  0.103  1.0
  Mg  Mg9  1  0.756  0.692  0.397  1.0
  Mg  Mg10  1  0.244  0.192  0.897  1.0
  Mg  Mg11  1  0.244  0.308  0.603  1.0
  Mg  Mg12  1  0.251  0.111  0.153  1.0
  Mg  Mg13  1  0.251  0.389  0.347  1.0
  Mg  Mg14  1  0.749  0.889  0.847  1.0
  Mg  Mg15  1  0.749  0.611  0.653  1.0
  Mn  Mn16  1  0.314  0.750  0.250  1.0
  Mn  Mn17  1  0.686  0.250  0.750  1.0
  Mn  Mn18  1  0.748  0.261  0.456  1.0
  Mn  Mn19  1  0.748  0.239  0.044  1.0
  Mn  Mn20  1  0.252  0.739  0.544  1.0
  Mn  Mn21  1  0.252  0.761  0.956  1.0
  N  N22  1  0.751  0.012  0.431  1.0
  N  N23  1  0.751  0.488  0.069  1.0
  N  N24  1  0.249  0.988  0.569  1.0
  N  N25  1  0.249  0.512  0.931  1.0
  N  N26  1  0.726  0.750  0.250  1.0
  N  N27  1  0.274  0.250  0.750  1.0
  N  N28  1  0.254  0.826  0.074  1.0
  N  N29  1  0.254  0.674  0.426  1.0
  N  N30  1  0.746  0.174  0.926  1.0
  N  N31  1  0.746  0.326  0.574  1.0
  N  N32  1  0.244  0.023  0.282  1.0
  N  N33  1  0.244  0.477  0.218  1.0
  N  N34  1  0.756  0.977  0.718  1.0
  N  N35  1  0.756  0.523  0.782  1.0
  N  N36  1  0.752  0.376  0.358  1.0
  N  N37  1  0.752  0.124  0.142  1.0
  N  N38  1  0.248  0.624  0.642  1.0
  N  N39  1  0.248  0.876  0.858  1.0
[/CIF]
.
The structure described by Mg8(MnN3)3 crystallizes in the monoclinic P2/c space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to one N(3), one N(4), and three equivalent N(1) atoms to form MgN5 square pyramids that share  a cornercorner with one Mg(2)N6 octahedra, corners with two equivalent Mg(1)N5 square pyramids, corners with three equivalent Mg(4)N5 square pyramids,  a cornercorner with one Mg(3)N5 trigonal bipyramid, edges with two equivalent Mg(2)N6 octahedra, edges with two equivalent Mg(1)N5 square pyramids, and edges with two equivalent Mg(3)N5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 6°. In the second Mg site, Mg(2) is bonded to one N(1), one N(2), two equivalent N(4), and two equivalent N(5) atoms to form MgN6 octahedra that share corners with three equivalent Mg(2)N6 octahedra,  a cornercorner with one Mg(1)N5 square pyramid,  a cornercorner with one Mg(3)N5 trigonal bipyramid,  an edgeedge with one Mg(2)N6 octahedra, edges with two equivalent Mg(1)N5 square pyramids, edges with four equivalent Mg(4)N5 square pyramids, and edges with two equivalent Mg(3)N5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 7-10°. In the third Mg site, Mg(3) is bonded to one N(1), one N(2), one N(5), and two equivalent N(3) atoms to form MgN5 trigonal bipyramids that share  a cornercorner with one Mg(2)N6 octahedra,  a cornercorner with one Mg(1)N5 square pyramid, corners with three equivalent Mg(3)N5 trigonal bipyramids, edges with two equivalent Mg(2)N6 octahedra, edges with two equivalent Mg(1)N5 square pyramids, and edges with two equivalent Mg(4)N5 square pyramids. The corner-sharing octahedral tilt angles are 12°. In the fourth Mg site, Mg(4) is bonded to one N(3), two equivalent N(4), and two equivalent N(5) atoms to form distorted MgN5 square pyramids that share corners with two equivalent Mg(4)N5 square pyramids, corners with three equivalent Mg(1)N5 square pyramids, edges with four equivalent Mg(2)N6 octahedra,  an edgeedge with one Mg(4)N5 square pyramid, and edges with two equivalent Mg(3)N5 trigonal bipyramids. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 3-coordinate geometry to two equivalent N(2) and two equivalent N(4) atoms. In the second Mn site, Mn(2) is bonded in a distorted trigonal planar geometry to one N(1), one N(3), and one N(5) atom. There are five inequivalent N sites. In the first N site, N(4) is bonded to one Mg(1), two equivalent Mg(2), two equivalent Mg(4), and one Mn(1) atom to form distorted NMg5Mn octahedra that share  a cornercorner with one N(1)Mg5Mn octahedra, corners with three equivalent N(4)Mg5Mn octahedra,  an edgeedge with one N(4)Mg5Mn octahedra, edges with two equivalent N(2)Mg4Mn2 octahedra, edges with two equivalent N(1)Mg5Mn octahedra, and edges with four equivalent N(5)Mg5Mn octahedra. The corner-sharing octahedral tilt angles range from 5-18°. In the second N site, N(5) is bonded to one Mg(3), two equivalent Mg(2), two equivalent Mg(4), and one Mn(2) atom to form distorted NMg5Mn octahedra that share  a cornercorner with one N(2)Mg4Mn2 octahedra, corners with two equivalent N(1)Mg5Mn octahedra, corners with two equivalent N(5)Mg5Mn octahedra,  an edgeedge with one N(2)Mg4Mn2 octahedra,  an edgeedge with one N(1)Mg5Mn octahedra,  an edgeedge with one N(5)Mg5Mn octahedra, and edges with four equivalent N(4)Mg5Mn octahedra. The corner-sharing octahedral tilt angles range from 2-13°. In the third N site, N(1) is bonded to one Mg(2), one Mg(3), three equivalent Mg(1), and one Mn(2) atom to form NMg5Mn octahedra that share  a cornercorner with one N(4)Mg5Mn octahedra, corners with two equivalent N(1)Mg5Mn octahedra, corners with two equivalent N(5)Mg5Mn octahedra,  an edgeedge with one N(2)Mg4Mn2 octahedra,  an edgeedge with one N(5)Mg5Mn octahedra, edges with two equivalent N(1)Mg5Mn octahedra, and edges with two equivalent N(4)Mg5Mn octahedra. The corner-sharing octahedral tilt angles range from 2-9°. In the fourth N site, N(2) is bonded to two equivalent Mg(2), two equivalent Mg(3), and two equivalent Mn(1) atoms to form distorted NMg4Mn2 octahedra that share corners with two equivalent N(2)Mg4Mn2 octahedra, corners with two equivalent N(5)Mg5Mn octahedra, edges with two equivalent N(1)Mg5Mn octahedra, edges with two equivalent N(5)Mg5Mn octahedra, and edges with four equivalent N(4)Mg5Mn octahedra. The corner-sharing octahedral tilt angles range from 0-13°. In the fifth N site, N(3) is bonded in a 5-coordinate geometry to one Mg(1), one Mg(4), two equivalent Mg(3), and one Mn(2) atom. is represented by the CIF card [CIF]
data_Mg8(MnN3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.402
_cell_length_b   7.011
_cell_length_c   14.958
_cell_angle_alpha   97.234
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   458.023
_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
  Mg  Mg0  1  0.750  0.493  0.922  1.0
  Mg  Mg1  1  0.750  0.007  0.578  1.0
  Mg  Mg2  1  0.250  0.507  0.078  1.0
  Mg  Mg3  1  0.250  0.993  0.422  1.0
  Mg  Mg4  1  0.754  0.050  0.286  1.0
  Mg  Mg5  1  0.754  0.450  0.214  1.0
  Mg  Mg6  1  0.246  0.950  0.714  1.0
  Mg  Mg7  1  0.246  0.550  0.786  1.0
  Mg  Mg8  1  0.756  0.808  0.103  1.0
  Mg  Mg9  1  0.756  0.692  0.397  1.0
  Mg  Mg10  1  0.244  0.192  0.897  1.0
  Mg  Mg11  1  0.244  0.308  0.603  1.0
  Mg  Mg12  1  0.251  0.111  0.153  1.0
  Mg  Mg13  1  0.251  0.389  0.347  1.0
  Mg  Mg14  1  0.749  0.889  0.847  1.0
  Mg  Mg15  1  0.749  0.611  0.653  1.0
  Mn  Mn16  1  0.314  0.750  0.250  1.0
  Mn  Mn17  1  0.686  0.250  0.750  1.0
  Mn  Mn18  1  0.748  0.261  0.456  1.0
  Mn  Mn19  1  0.748  0.239  0.044  1.0
  Mn  Mn20  1  0.252  0.739  0.544  1.0
  Mn  Mn21  1  0.252  0.761  0.956  1.0
  N  N22  1  0.751  0.012  0.431  1.0
  N  N23  1  0.751  0.488  0.069  1.0
  N  N24  1  0.249  0.988  0.569  1.0
  N  N25  1  0.249  0.512  0.931  1.0
  N  N26  1  0.726  0.750  0.250  1.0
  N  N27  1  0.274  0.250  0.750  1.0
  N  N28  1  0.254  0.826  0.074  1.0
  N  N29  1  0.254  0.674  0.426  1.0
  N  N30  1  0.746  0.174  0.926  1.0
  N  N31  1  0.746  0.326  0.574  1.0
  N  N32  1  0.244  0.023  0.282  1.0
  N  N33  1  0.244  0.477  0.218  1.0
  N  N34  1  0.756  0.977  0.718  1.0
  N  N35  1  0.756  0.523  0.782  1.0
  N  N36  1  0.752  0.376  0.358  1.0
  N  N37  1  0.752  0.124  0.142  1.0
  N  N38  1  0.248  0.624  0.642  1.0
  N  N39  1  0.248  0.876  0.858  1.0
[/CIF]
.