The material described by SrNdGa3O7 crystallizes in the orthorhombic Cmm2 space group. Sr(1) is bonded in a 8-coordinate geometry to one O(3), one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(6) atoms. Nd(1) is bonded in a 8-coordinate geometry to one O(4), one O(6), two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(4), one O(5), and two equivalent O(1) atoms to form distorted corner-sharing GaO4 tetrahedra. In the second Ga site, Ga(2) is bonded to one O(3), one O(6), and two equivalent O(2) atoms to form corner-sharing GaO4 tetrahedra. In the third Ga site, Ga(3) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form corner-sharing GaO4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Nd(1), one Ga(1), and one Ga(3) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Sr(1), one Nd(1), one Ga(2), and one Ga(3) atom. In the third O site, O(3) is bonded to two equivalent Sr(1) and two equivalent Ga(2) atoms to form distorted OSr2Ga2 tetrahedra that share corners with two equivalent O(6)Sr2NdGa tetrahedra, corners with two equivalent O(5)SrNd2Ga tetrahedra, and edges with two equivalent O(6)Sr2NdGa tetrahedra. In the fourth O site, O(4) is bonded to two equivalent Nd(1) and two equivalent Ga(1) atoms to form ONd2Ga2 tetrahedra that share corners with two equivalent O(6)Sr2NdGa tetrahedra, corners with two equivalent O(5)SrNd2Ga tetrahedra, and edges with two equivalent O(5)SrNd2Ga tetrahedra. In the fifth O site, O(5) is bonded to one Sr(1), two equivalent Nd(1), and one Ga(1) atom to form OSrNd2Ga tetrahedra that share  a cornercorner with one O(4)Nd2Ga2 tetrahedra,  a cornercorner with one O(3)Sr2Ga2 tetrahedra, corners with four equivalent O(6)Sr2NdGa tetrahedra,  an edgeedge with one O(4)Nd2Ga2 tetrahedra, and  an edgeedge with one O(5)SrNd2Ga tetrahedra. In the sixth O site, O(6) is bonded to two equivalent Sr(1), one Nd(1), and one Ga(2) atom to form distorted OSr2NdGa tetrahedra that share  a cornercorner with one O(4)Nd2Ga2 tetrahedra,  a cornercorner with one O(3)Sr2Ga2 tetrahedra, corners with four equivalent O(5)SrNd2Ga tetrahedra,  an edgeedge with one O(3)Sr2Ga2 tetrahedra, and  an edgeedge with one O(6)Sr2NdGa tetrahedra. is represented by the CIF file [CIF]
data_SrNdGa3O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.081
_cell_length_b   8.081
_cell_length_c   5.352
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.577
_symmetry_Int_Tables_number   1
_cell_volume   349.528
_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
  Sr  Sr0  1  0.162  0.838  0.490  1.0
  Sr  Sr1  1  0.838  0.162  0.490  1.0
  Nd  Nd2  1  0.662  0.662  0.513  1.0
  Nd  Nd3  1  0.338  0.338  0.513  1.0
  Ga  Ga4  1  0.358  0.642  0.034  1.0
  Ga  Ga5  1  0.854  0.854  0.967  1.0
  Ga  Ga6  1  0.642  0.358  0.034  1.0
  Ga  Ga7  1  0.146  0.146  0.967  1.0
  Ga  Ga8  1  0.500  0.000  0.997  1.0
  Ga  Ga9  1  0.000  0.500  0.997  1.0
  O  O10  1  0.418  0.835  0.204  1.0
  O  O11  1  0.903  0.658  0.790  1.0
  O  O12  1  0.582  0.165  0.204  1.0
  O  O13  1  0.097  0.342  0.790  1.0
  O  O14  1  0.342  0.097  0.790  1.0
  O  O15  1  0.835  0.418  0.204  1.0
  O  O16  1  0.658  0.903  0.790  1.0
  O  O17  1  0.165  0.582  0.204  1.0
  O  O18  1  0.000  0.000  0.818  1.0
  O  O19  1  0.500  0.500  0.208  1.0
  O  O20  1  0.372  0.628  0.694  1.0
  O  O21  1  0.848  0.848  0.305  1.0
  O  O22  1  0.628  0.372  0.694  1.0
  O  O23  1  0.152  0.152  0.305  1.0
[/CIF]
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The material described by SrNdGa3O7 crystallizes in the orthorhombic Cmm2 space group. Sr(1) is bonded in a 8-coordinate geometry to one O(3), one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(6) atoms. Nd(1) is bonded in a 8-coordinate geometry to one O(4), one O(6), two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(4), one O(5), and two equivalent O(1) atoms to form distorted corner-sharing GaO4 tetrahedra. In the second Ga site, Ga(2) is bonded to one O(3), one O(6), and two equivalent O(2) atoms to form corner-sharing GaO4 tetrahedra. In the third Ga site, Ga(3) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form corner-sharing GaO4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Nd(1), one Ga(1), and one Ga(3) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Sr(1), one Nd(1), one Ga(2), and one Ga(3) atom. In the third O site, O(3) is bonded to two equivalent Sr(1) and two equivalent Ga(2) atoms to form distorted OSr2Ga2 tetrahedra that share corners with two equivalent O(6)Sr2NdGa tetrahedra, corners with two equivalent O(5)SrNd2Ga tetrahedra, and edges with two equivalent O(6)Sr2NdGa tetrahedra. In the fourth O site, O(4) is bonded to two equivalent Nd(1) and two equivalent Ga(1) atoms to form ONd2Ga2 tetrahedra that share corners with two equivalent O(6)Sr2NdGa tetrahedra, corners with two equivalent O(5)SrNd2Ga tetrahedra, and edges with two equivalent O(5)SrNd2Ga tetrahedra. In the fifth O site, O(5) is bonded to one Sr(1), two equivalent Nd(1), and one Ga(1) atom to form OSrNd2Ga tetrahedra that share  a cornercorner with one O(4)Nd2Ga2 tetrahedra,  a cornercorner with one O(3)Sr2Ga2 tetrahedra, corners with four equivalent O(6)Sr2NdGa tetrahedra,  an edgeedge with one O(4)Nd2Ga2 tetrahedra, and  an edgeedge with one O(5)SrNd2Ga tetrahedra. In the sixth O site, O(6) is bonded to two equivalent Sr(1), one Nd(1), and one Ga(2) atom to form distorted OSr2NdGa tetrahedra that share  a cornercorner with one O(4)Nd2Ga2 tetrahedra,  a cornercorner with one O(3)Sr2Ga2 tetrahedra, corners with four equivalent O(5)SrNd2Ga tetrahedra,  an edgeedge with one O(3)Sr2Ga2 tetrahedra, and  an edgeedge with one O(6)Sr2NdGa tetrahedra. is represented by the CIF file [CIF]
data_SrNdGa3O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.081
_cell_length_b   8.081
_cell_length_c   5.352
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.577
_symmetry_Int_Tables_number   1
_cell_volume   349.528
_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
  Sr  Sr0  1  0.162  0.838  0.490  1.0
  Sr  Sr1  1  0.838  0.162  0.490  1.0
  Nd  Nd2  1  0.662  0.662  0.513  1.0
  Nd  Nd3  1  0.338  0.338  0.513  1.0
  Ga  Ga4  1  0.358  0.642  0.034  1.0
  Ga  Ga5  1  0.854  0.854  0.967  1.0
  Ga  Ga6  1  0.642  0.358  0.034  1.0
  Ga  Ga7  1  0.146  0.146  0.967  1.0
  Ga  Ga8  1  0.500  0.000  0.997  1.0
  Ga  Ga9  1  0.000  0.500  0.997  1.0
  O  O10  1  0.418  0.835  0.204  1.0
  O  O11  1  0.903  0.658  0.790  1.0
  O  O12  1  0.582  0.165  0.204  1.0
  O  O13  1  0.097  0.342  0.790  1.0
  O  O14  1  0.342  0.097  0.790  1.0
  O  O15  1  0.835  0.418  0.204  1.0
  O  O16  1  0.658  0.903  0.790  1.0
  O  O17  1  0.165  0.582  0.204  1.0
  O  O18  1  0.000  0.000  0.818  1.0
  O  O19  1  0.500  0.500  0.208  1.0
  O  O20  1  0.372  0.628  0.694  1.0
  O  O21  1  0.848  0.848  0.305  1.0
  O  O22  1  0.628  0.372  0.694  1.0
  O  O23  1  0.152  0.152  0.305  1.0
[/CIF]
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