The material structure described by Sr3Ga2N4 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 4-coordinate geometry to one N(2) and three equivalent N(1) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted edge-sharing GaN4 tetrahedra. In the second Ga site, Ga(2) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted edge-sharing GaN4 tetrahedra. 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 Ga(1), and one Ga(2) atom. In the second N site, N(2) is bonded in a 5-coordinate geometry to one Sr(2), two equivalent Sr(1), one Ga(1), and one Ga(2) atom. is represented by the CIF file [CIF]
data_Sr3(GaN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.953
_cell_length_b   9.557
_cell_length_c   10.281
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   584.932
_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  0.250  0.595  0.500  1.0
  Sr  Sr1  1  0.250  0.905  0.000  1.0
  Sr  Sr2  1  0.750  0.405  0.500  1.0
  Sr  Sr3  1  0.750  0.095  0.000  1.0
  Sr  Sr4  1  0.391  0.588  0.154  1.0
  Sr  Sr5  1  0.391  0.912  0.346  1.0
  Sr  Sr6  1  0.109  0.588  0.846  1.0
  Sr  Sr7  1  0.109  0.912  0.654  1.0
  Sr  Sr8  1  0.609  0.412  0.846  1.0
  Sr  Sr9  1  0.609  0.088  0.654  1.0
  Sr  Sr10  1  0.891  0.412  0.154  1.0
  Sr  Sr11  1  0.891  0.088  0.346  1.0
  Ga  Ga12  1  0.838  0.750  0.250  1.0
  Ga  Ga13  1  0.662  0.750  0.750  1.0
  Ga  Ga14  1  0.162  0.250  0.750  1.0
  Ga  Ga15  1  0.338  0.250  0.250  1.0
  Ga  Ga16  1  0.250  0.230  0.000  1.0
  Ga  Ga17  1  0.750  0.730  0.500  1.0
  Ga  Ga18  1  0.750  0.770  0.000  1.0
  Ga  Ga19  1  0.250  0.270  0.500  1.0
  N  N20  1  0.492  0.168  0.404  1.0
  N  N21  1  0.492  0.332  0.096  1.0
  N  N22  1  0.008  0.168  0.596  1.0
  N  N23  1  0.008  0.332  0.904  1.0
  N  N24  1  0.508  0.832  0.596  1.0
  N  N25  1  0.508  0.668  0.904  1.0
  N  N26  1  0.992  0.832  0.404  1.0
  N  N27  1  0.992  0.668  0.096  1.0
  N  N28  1  0.125  0.375  0.353  1.0
  N  N29  1  0.125  0.125  0.147  1.0
  N  N30  1  0.375  0.375  0.647  1.0
  N  N31  1  0.375  0.125  0.853  1.0
  N  N32  1  0.875  0.875  0.853  1.0
  N  N33  1  0.625  0.625  0.353  1.0
  N  N34  1  0.625  0.875  0.147  1.0
  N  N35  1  0.875  0.625  0.647  1.0
[/CIF]
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The material structure described by Sr3Ga2N4 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 4-coordinate geometry to one N(2) and three equivalent N(1) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted edge-sharing GaN4 tetrahedra. In the second Ga site, Ga(2) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form distorted edge-sharing GaN4 tetrahedra. 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 Ga(1), and one Ga(2) atom. In the second N site, N(2) is bonded in a 5-coordinate geometry to one Sr(2), two equivalent Sr(1), one Ga(1), and one Ga(2) atom. is represented by the CIF file [CIF]
data_Sr3(GaN2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.953
_cell_length_b   9.557
_cell_length_c   10.281
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   584.932
_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  0.250  0.595  0.500  1.0
  Sr  Sr1  1  0.250  0.905  0.000  1.0
  Sr  Sr2  1  0.750  0.405  0.500  1.0
  Sr  Sr3  1  0.750  0.095  0.000  1.0
  Sr  Sr4  1  0.391  0.588  0.154  1.0
  Sr  Sr5  1  0.391  0.912  0.346  1.0
  Sr  Sr6  1  0.109  0.588  0.846  1.0
  Sr  Sr7  1  0.109  0.912  0.654  1.0
  Sr  Sr8  1  0.609  0.412  0.846  1.0
  Sr  Sr9  1  0.609  0.088  0.654  1.0
  Sr  Sr10  1  0.891  0.412  0.154  1.0
  Sr  Sr11  1  0.891  0.088  0.346  1.0
  Ga  Ga12  1  0.838  0.750  0.250  1.0
  Ga  Ga13  1  0.662  0.750  0.750  1.0
  Ga  Ga14  1  0.162  0.250  0.750  1.0
  Ga  Ga15  1  0.338  0.250  0.250  1.0
  Ga  Ga16  1  0.250  0.230  0.000  1.0
  Ga  Ga17  1  0.750  0.730  0.500  1.0
  Ga  Ga18  1  0.750  0.770  0.000  1.0
  Ga  Ga19  1  0.250  0.270  0.500  1.0
  N  N20  1  0.492  0.168  0.404  1.0
  N  N21  1  0.492  0.332  0.096  1.0
  N  N22  1  0.008  0.168  0.596  1.0
  N  N23  1  0.008  0.332  0.904  1.0
  N  N24  1  0.508  0.832  0.596  1.0
  N  N25  1  0.508  0.668  0.904  1.0
  N  N26  1  0.992  0.832  0.404  1.0
  N  N27  1  0.992  0.668  0.096  1.0
  N  N28  1  0.125  0.375  0.353  1.0
  N  N29  1  0.125  0.125  0.147  1.0
  N  N30  1  0.375  0.375  0.647  1.0
  N  N31  1  0.375  0.125  0.853  1.0
  N  N32  1  0.875  0.875  0.853  1.0
  N  N33  1  0.625  0.625  0.353  1.0
  N  N34  1  0.625  0.875  0.147  1.0
  N  N35  1  0.875  0.625  0.647  1.0
[/CIF]
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