The material structure described by SrPrCuGaO5 crystallizes in the triclinic P1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(9) atom. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to one O(1), one O(10), one O(2), one O(5), one O(6), and one O(8) atom to form distorted PrO6 octahedra that share corners with two equivalent Ga(1)O4 tetrahedra and corners with two equivalent Ga(2)O4 tetrahedra. In the second Pr site, Pr(2) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(3), one O(5), one O(6), one O(7), and one O(8) atom. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted rectangular see-saw-like geometry to one O(10), one O(4), one O(6), and one O(7) atom. In the second Cu site, Cu(2) is bonded in a square co-planar geometry to one O(1), one O(5), one O(6), and one O(7) atom. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(2), one O(3), one O(4), and one O(8) atom to form distorted GaO4 tetrahedra that share corners with two equivalent Pr(1)O6 octahedra and corners with two equivalent Ga(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-61°. In the second Ga site, Ga(2) is bonded to one O(10), one O(3), one O(8), and one O(9) atom to form GaO4 tetrahedra that share corners with two equivalent Pr(1)O6 octahedra and corners with two equivalent Ga(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 66-78°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Pr(1), one Pr(2), and one Cu(2) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Sr(1), one Sr(2), one Pr(1), and one Ga(1) atom. In the third O site, O(3) is bonded to one Sr(2), one Pr(2), one Ga(1), and one Ga(2) atom to form distorted OSrPrGa2 tetrahedra that share corners with two equivalent O(4)Sr2GaCu tetrahedra,  a cornercorner with one O(8)SrPr2Ga2 trigonal bipyramid, and  an edgeedge with one O(8)SrPr2Ga2 trigonal bipyramid. In the fourth O site, O(4) is bonded to one Sr(1), one Sr(2), one Cu(1), and one Ga(1) atom to form distorted OSr2GaCu tetrahedra that share corners with two equivalent O(3)SrPrGa2 tetrahedra and  an edgeedge with one O(8)SrPr2Ga2 trigonal bipyramid. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Pr(1), one Pr(2), and one Cu(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(2), one Cu(1), and one Cu(2) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Pr(2), one Cu(1), and one Cu(2) atom. In the eighth O site, O(8) is bonded to one Sr(1), one Pr(1), one Pr(2), one Ga(1), and one Ga(2) atom to form distorted OSrPr2Ga2 trigonal bipyramids that share  a cornercorner with one O(3)SrPrGa2 tetrahedra,  an edgeedge with one O(4)Sr2GaCu tetrahedra, and  an edgeedge with one O(3)SrPrGa2 tetrahedra. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Sr(1), one Sr(2), and one Ga(2) atom. In the tenth O site, O(10) is bonded in a distorted see-saw-like geometry to one Pr(1), one Pr(2), one Cu(1), and one Ga(2) atom. is represented by the CIF file [CIF]
data_SrPrGaCuO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.831
_cell_length_b   6.074
_cell_length_c   8.178
_cell_angle_alpha   105.840
_cell_angle_beta   108.663
_cell_angle_gamma   88.697
_symmetry_Int_Tables_number   1
_cell_volume   263.300
_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  0.174  0.648  0.252  1.0
  Sr  Sr1  1  0.698  0.003  0.275  1.0
  Pr  Pr2  1  0.363  0.866  0.775  1.0
  Pr  Pr3  1  0.869  0.421  0.823  1.0
  Ga  Ga4  1  0.774  0.580  0.463  1.0
  Ga  Ga5  1  0.299  0.280  0.529  1.0
  Cu  Cu6  1  0.511  0.359  0.013  1.0
  Cu  Cu7  1  0.993  0.000  0.992  1.0
  O  O8  1  0.171  0.731  0.938  1.0
  O  O9  1  0.003  0.815  0.514  1.0
  O  O10  1  0.972  0.344  0.528  1.0
  O  O11  1  0.571  0.584  0.243  1.0
  O  O12  1  0.748  0.785  0.987  1.0
  O  O13  1  0.190  0.194  0.940  1.0
  O  O14  1  0.847  0.276  0.071  1.0
  O  O15  1  0.522  0.556  0.572  1.0
  O  O16  1  0.321  0.055  0.341  1.0
  O  O17  1  0.475  0.225  0.744  1.0
[/CIF]
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The material structure described by SrPrCuGaO5 crystallizes in the triclinic P1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(9) atom. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to one O(1), one O(10), one O(2), one O(5), one O(6), and one O(8) atom to form distorted PrO6 octahedra that share corners with two equivalent Ga(1)O4 tetrahedra and corners with two equivalent Ga(2)O4 tetrahedra. In the second Pr site, Pr(2) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(3), one O(5), one O(6), one O(7), and one O(8) atom. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted rectangular see-saw-like geometry to one O(10), one O(4), one O(6), and one O(7) atom. In the second Cu site, Cu(2) is bonded in a square co-planar geometry to one O(1), one O(5), one O(6), and one O(7) atom. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(2), one O(3), one O(4), and one O(8) atom to form distorted GaO4 tetrahedra that share corners with two equivalent Pr(1)O6 octahedra and corners with two equivalent Ga(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-61°. In the second Ga site, Ga(2) is bonded to one O(10), one O(3), one O(8), and one O(9) atom to form GaO4 tetrahedra that share corners with two equivalent Pr(1)O6 octahedra and corners with two equivalent Ga(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 66-78°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Pr(1), one Pr(2), and one Cu(2) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one Sr(1), one Sr(2), one Pr(1), and one Ga(1) atom. In the third O site, O(3) is bonded to one Sr(2), one Pr(2), one Ga(1), and one Ga(2) atom to form distorted OSrPrGa2 tetrahedra that share corners with two equivalent O(4)Sr2GaCu tetrahedra,  a cornercorner with one O(8)SrPr2Ga2 trigonal bipyramid, and  an edgeedge with one O(8)SrPr2Ga2 trigonal bipyramid. In the fourth O site, O(4) is bonded to one Sr(1), one Sr(2), one Cu(1), and one Ga(1) atom to form distorted OSr2GaCu tetrahedra that share corners with two equivalent O(3)SrPrGa2 tetrahedra and  an edgeedge with one O(8)SrPr2Ga2 trigonal bipyramid. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Pr(1), one Pr(2), and one Cu(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Pr(1), one Pr(2), one Cu(1), and one Cu(2) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Pr(2), one Cu(1), and one Cu(2) atom. In the eighth O site, O(8) is bonded to one Sr(1), one Pr(1), one Pr(2), one Ga(1), and one Ga(2) atom to form distorted OSrPr2Ga2 trigonal bipyramids that share  a cornercorner with one O(3)SrPrGa2 tetrahedra,  an edgeedge with one O(4)Sr2GaCu tetrahedra, and  an edgeedge with one O(3)SrPrGa2 tetrahedra. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Sr(1), one Sr(2), and one Ga(2) atom. In the tenth O site, O(10) is bonded in a distorted see-saw-like geometry to one Pr(1), one Pr(2), one Cu(1), and one Ga(2) atom. is represented by the CIF file [CIF]
data_SrPrGaCuO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.831
_cell_length_b   6.074
_cell_length_c   8.178
_cell_angle_alpha   105.840
_cell_angle_beta   108.663
_cell_angle_gamma   88.697
_symmetry_Int_Tables_number   1
_cell_volume   263.300
_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  0.174  0.648  0.252  1.0
  Sr  Sr1  1  0.698  0.003  0.275  1.0
  Pr  Pr2  1  0.363  0.866  0.775  1.0
  Pr  Pr3  1  0.869  0.421  0.823  1.0
  Ga  Ga4  1  0.774  0.580  0.463  1.0
  Ga  Ga5  1  0.299  0.280  0.529  1.0
  Cu  Cu6  1  0.511  0.359  0.013  1.0
  Cu  Cu7  1  0.993  0.000  0.992  1.0
  O  O8  1  0.171  0.731  0.938  1.0
  O  O9  1  0.003  0.815  0.514  1.0
  O  O10  1  0.972  0.344  0.528  1.0
  O  O11  1  0.571  0.584  0.243  1.0
  O  O12  1  0.748  0.785  0.987  1.0
  O  O13  1  0.190  0.194  0.940  1.0
  O  O14  1  0.847  0.276  0.071  1.0
  O  O15  1  0.522  0.556  0.572  1.0
  O  O16  1  0.321  0.055  0.341  1.0
  O  O17  1  0.475  0.225  0.744  1.0
[/CIF]
.