The structure described by Sr4GeN4 crystallizes in the orthorhombic Pnna space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 4-coordinate geometry to one N(2) and three equivalent N(1) atoms. In the second Sr site, Sr(2) is bonded in a 4-coordinate geometry to four equivalent N(2) atoms. In the third Sr site, Sr(3) is bonded in a 4-coordinate geometry to two equivalent N(1) and two equivalent N(2) atoms. Ge(1) is bonded in a tetrahedral geometry to two equivalent N(1) and two equivalent N(2) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded to one Sr(3), three equivalent Sr(1), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing NSr4Ge trigonal bipyramids. In the second N site, N(2) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), two equivalent Sr(2), and one Ge(1) atom. is represented by the CIF card [CIF]
data_Sr4GeN4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.133
_cell_length_b   11.909
_cell_length_c   9.944
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   726.256
_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  0.118  0.374  0.604  1.0
  Sr  Sr1  1  0.382  0.626  0.604  1.0
  Sr  Sr2  1  0.118  0.126  0.896  1.0
  Sr  Sr3  1  0.382  0.874  0.896  1.0
  Sr  Sr4  1  0.882  0.626  0.396  1.0
  Sr  Sr5  1  0.618  0.374  0.396  1.0
  Sr  Sr6  1  0.882  0.874  0.104  1.0
  Sr  Sr7  1  0.618  0.126  0.104  1.0
  Sr  Sr8  1  0.750  0.500  0.070  1.0
  Sr  Sr9  1  0.750  0.000  0.430  1.0
  Sr  Sr10  1  0.250  0.500  0.930  1.0
  Sr  Sr11  1  0.250  0.000  0.570  1.0
  Sr  Sr12  1  0.648  0.250  0.750  1.0
  Sr  Sr13  1  0.852  0.750  0.750  1.0
  Sr  Sr14  1  0.352  0.750  0.250  1.0
  Sr  Sr15  1  0.148  0.250  0.250  1.0
  Ge  Ge16  1  0.750  0.500  0.753  1.0
  Ge  Ge17  1  0.750  0.000  0.747  1.0
  Ge  Ge18  1  0.250  0.500  0.247  1.0
  Ge  Ge19  1  0.250  0.000  0.253  1.0
  N  N20  1  0.517  0.428  0.646  1.0
  N  N21  1  0.983  0.572  0.646  1.0
  N  N22  1  0.517  0.072  0.854  1.0
  N  N23  1  0.983  0.928  0.854  1.0
  N  N24  1  0.483  0.572  0.354  1.0
  N  N25  1  0.017  0.428  0.354  1.0
  N  N26  1  0.483  0.928  0.146  1.0
  N  N27  1  0.017  0.072  0.146  1.0
  N  N28  1  0.904  0.112  0.644  1.0
  N  N29  1  0.596  0.888  0.644  1.0
  N  N30  1  0.904  0.388  0.856  1.0
  N  N31  1  0.596  0.612  0.856  1.0
  N  N32  1  0.096  0.888  0.356  1.0
  N  N33  1  0.404  0.112  0.356  1.0
  N  N34  1  0.096  0.612  0.144  1.0
  N  N35  1  0.404  0.388  0.144  1.0
[/CIF]
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The structure described by Sr4GeN4 crystallizes in the orthorhombic Pnna space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 4-coordinate geometry to one N(2) and three equivalent N(1) atoms. In the second Sr site, Sr(2) is bonded in a 4-coordinate geometry to four equivalent N(2) atoms. In the third Sr site, Sr(3) is bonded in a 4-coordinate geometry to two equivalent N(1) and two equivalent N(2) atoms. Ge(1) is bonded in a tetrahedral geometry to two equivalent N(1) and two equivalent N(2) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded to one Sr(3), three equivalent Sr(1), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing NSr4Ge trigonal bipyramids. In the second N site, N(2) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), two equivalent Sr(2), and one Ge(1) atom. is represented by the CIF card [CIF]
data_Sr4GeN4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.133
_cell_length_b   11.909
_cell_length_c   9.944
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   726.256
_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  0.118  0.374  0.604  1.0
  Sr  Sr1  1  0.382  0.626  0.604  1.0
  Sr  Sr2  1  0.118  0.126  0.896  1.0
  Sr  Sr3  1  0.382  0.874  0.896  1.0
  Sr  Sr4  1  0.882  0.626  0.396  1.0
  Sr  Sr5  1  0.618  0.374  0.396  1.0
  Sr  Sr6  1  0.882  0.874  0.104  1.0
  Sr  Sr7  1  0.618  0.126  0.104  1.0
  Sr  Sr8  1  0.750  0.500  0.070  1.0
  Sr  Sr9  1  0.750  0.000  0.430  1.0
  Sr  Sr10  1  0.250  0.500  0.930  1.0
  Sr  Sr11  1  0.250  0.000  0.570  1.0
  Sr  Sr12  1  0.648  0.250  0.750  1.0
  Sr  Sr13  1  0.852  0.750  0.750  1.0
  Sr  Sr14  1  0.352  0.750  0.250  1.0
  Sr  Sr15  1  0.148  0.250  0.250  1.0
  Ge  Ge16  1  0.750  0.500  0.753  1.0
  Ge  Ge17  1  0.750  0.000  0.747  1.0
  Ge  Ge18  1  0.250  0.500  0.247  1.0
  Ge  Ge19  1  0.250  0.000  0.253  1.0
  N  N20  1  0.517  0.428  0.646  1.0
  N  N21  1  0.983  0.572  0.646  1.0
  N  N22  1  0.517  0.072  0.854  1.0
  N  N23  1  0.983  0.928  0.854  1.0
  N  N24  1  0.483  0.572  0.354  1.0
  N  N25  1  0.017  0.428  0.354  1.0
  N  N26  1  0.483  0.928  0.146  1.0
  N  N27  1  0.017  0.072  0.146  1.0
  N  N28  1  0.904  0.112  0.644  1.0
  N  N29  1  0.596  0.888  0.644  1.0
  N  N30  1  0.904  0.388  0.856  1.0
  N  N31  1  0.596  0.612  0.856  1.0
  N  N32  1  0.096  0.888  0.356  1.0
  N  N33  1  0.404  0.112  0.356  1.0
  N  N34  1  0.096  0.612  0.144  1.0
  N  N35  1  0.404  0.388  0.144  1.0
[/CIF]
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