The compound described by Sr3GeMgN4 crystallizes in the orthorhombic Pnna space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to two equivalent N(1) and four equivalent N(2) atoms. In the second Sr site, Sr(2) is bonded in a 5-coordinate geometry to two equivalent N(2) and three equivalent N(1) atoms. Mg(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted MgN4 trigonal pyramids that share edges with two equivalent Ge(1)N4 tetrahedra. Ge(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form GeN4 tetrahedra that share edges with two equivalent Mg(1)N4 trigonal pyramids. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to one Sr(1), three equivalent Sr(2), one Mg(1), and one Ge(1) atom. In the second N site, N(2) is bonded in a 5-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), one Mg(1), and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr3MgGeN4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.951
_cell_length_b   9.622
_cell_length_c   10.338
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   592.039
_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  0.750  0.407  0.000  1.0
  Sr  Sr1  1  0.113  0.909  0.847  1.0
  Sr  Sr2  1  0.387  0.591  0.347  1.0
  Sr  Sr3  1  0.887  0.091  0.153  1.0
  Sr  Sr4  1  0.887  0.409  0.347  1.0
  Sr  Sr5  1  0.750  0.093  0.500  1.0
  Sr  Sr6  1  0.387  0.909  0.153  1.0
  Sr  Sr7  1  0.613  0.409  0.653  1.0
  Sr  Sr8  1  0.250  0.593  0.000  1.0
  Sr  Sr9  1  0.113  0.591  0.653  1.0
  Sr  Sr10  1  0.613  0.091  0.847  1.0
  Sr  Sr11  1  0.250  0.907  0.500  1.0
  Mg  Mg12  1  0.158  0.250  0.750  1.0
  Mg  Mg13  1  0.842  0.750  0.250  1.0
  Mg  Mg14  1  0.342  0.250  0.250  1.0
  Mg  Mg15  1  0.658  0.750  0.750  1.0
  Ge  Ge16  1  0.750  0.768  0.500  1.0
  Ge  Ge17  1  0.750  0.732  0.000  1.0
  Ge  Ge18  1  0.250  0.268  0.000  1.0
  Ge  Ge19  1  0.250  0.232  0.500  1.0
  N  N20  1  0.985  0.664  0.416  1.0
  N  N21  1  0.382  0.372  0.864  1.0
  N  N22  1  0.882  0.872  0.636  1.0
  N  N23  1  0.015  0.164  0.916  1.0
  N  N24  1  0.485  0.164  0.084  1.0
  N  N25  1  0.485  0.336  0.416  1.0
  N  N26  1  0.985  0.836  0.084  1.0
  N  N27  1  0.015  0.336  0.584  1.0
  N  N28  1  0.882  0.628  0.864  1.0
  N  N29  1  0.515  0.664  0.584  1.0
  N  N30  1  0.618  0.628  0.136  1.0
  N  N31  1  0.382  0.128  0.636  1.0
  N  N32  1  0.618  0.872  0.364  1.0
  N  N33  1  0.118  0.372  0.136  1.0
  N  N34  1  0.118  0.128  0.364  1.0
  N  N35  1  0.515  0.836  0.916  1.0
[/CIF]
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The compound described by Sr3GeMgN4 crystallizes in the orthorhombic Pnna space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 6-coordinate geometry to two equivalent N(1) and four equivalent N(2) atoms. In the second Sr site, Sr(2) is bonded in a 5-coordinate geometry to two equivalent N(2) and three equivalent N(1) atoms. Mg(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted MgN4 trigonal pyramids that share edges with two equivalent Ge(1)N4 tetrahedra. Ge(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form GeN4 tetrahedra that share edges with two equivalent Mg(1)N4 trigonal pyramids. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to one Sr(1), three equivalent Sr(2), one Mg(1), and one Ge(1) atom. In the second N site, N(2) is bonded in a 5-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), one Mg(1), and one Ge(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr3MgGeN4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.951
_cell_length_b   9.622
_cell_length_c   10.338
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   592.039
_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  0.750  0.407  0.000  1.0
  Sr  Sr1  1  0.113  0.909  0.847  1.0
  Sr  Sr2  1  0.387  0.591  0.347  1.0
  Sr  Sr3  1  0.887  0.091  0.153  1.0
  Sr  Sr4  1  0.887  0.409  0.347  1.0
  Sr  Sr5  1  0.750  0.093  0.500  1.0
  Sr  Sr6  1  0.387  0.909  0.153  1.0
  Sr  Sr7  1  0.613  0.409  0.653  1.0
  Sr  Sr8  1  0.250  0.593  0.000  1.0
  Sr  Sr9  1  0.113  0.591  0.653  1.0
  Sr  Sr10  1  0.613  0.091  0.847  1.0
  Sr  Sr11  1  0.250  0.907  0.500  1.0
  Mg  Mg12  1  0.158  0.250  0.750  1.0
  Mg  Mg13  1  0.842  0.750  0.250  1.0
  Mg  Mg14  1  0.342  0.250  0.250  1.0
  Mg  Mg15  1  0.658  0.750  0.750  1.0
  Ge  Ge16  1  0.750  0.768  0.500  1.0
  Ge  Ge17  1  0.750  0.732  0.000  1.0
  Ge  Ge18  1  0.250  0.268  0.000  1.0
  Ge  Ge19  1  0.250  0.232  0.500  1.0
  N  N20  1  0.985  0.664  0.416  1.0
  N  N21  1  0.382  0.372  0.864  1.0
  N  N22  1  0.882  0.872  0.636  1.0
  N  N23  1  0.015  0.164  0.916  1.0
  N  N24  1  0.485  0.164  0.084  1.0
  N  N25  1  0.485  0.336  0.416  1.0
  N  N26  1  0.985  0.836  0.084  1.0
  N  N27  1  0.015  0.336  0.584  1.0
  N  N28  1  0.882  0.628  0.864  1.0
  N  N29  1  0.515  0.664  0.584  1.0
  N  N30  1  0.618  0.628  0.136  1.0
  N  N31  1  0.382  0.128  0.636  1.0
  N  N32  1  0.618  0.872  0.364  1.0
  N  N33  1  0.118  0.372  0.136  1.0
  N  N34  1  0.118  0.128  0.364  1.0
  N  N35  1  0.515  0.836  0.916  1.0
[/CIF]
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