The structure described by Sr2YV2GaO7 crystallizes in the monoclinic C2 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), two equivalent O(4), and two equivalent O(7) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), one O(7), and two equivalent O(4) atoms. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms. In the second Y site, Y(2) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(3), one O(5), one O(6), and one O(7) atom to form distorted VO5 square pyramids that share corners with four equivalent V(2)O5 square pyramids and  a cornercorner with one Ga(1)O4 tetrahedra. In the second V site, V(2) is bonded to one O(1), one O(3), one O(4), one O(5), and one O(6) atom to form VO5 square pyramids that share corners with four equivalent V(1)O5 square pyramids and  a cornercorner with one Ga(1)O4 tetrahedra. Ga(1) is bonded to one O(4), one O(7), and two equivalent O(2) atoms to form GaO4 tetrahedra that share  a cornercorner with one V(1)O5 square pyramid,  a cornercorner with one V(2)O5 square pyramid, and corners with two equivalent Ga(1)O4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a 4-coordinate geometry to one Sr(2), two equivalent Sr(1), one V(1), and one Ga(1) atom. In the second O site, O(1) is bonded to one Sr(1), one Sr(2), one Y(1), one Y(2), one V(1), and one V(2) atom to form distorted OSr2Y2V2 octahedra that share corners with two equivalent O(1)Sr2Y2V2 octahedra, corners with two equivalent O(3)Sr2Y2V2 octahedra, corners with four equivalent O(6)Sr2Y2V2 octahedra, corners with two equivalent O(2)Sr2Ga2 tetrahedra,  an edgeedge with one O(5)Sr2Y2V2 octahedra, edges with two equivalent O(6)Sr2Y2V2 octahedra, faces with two equivalent O(3)Sr2Y2V2 octahedra, and faces with two equivalent O(5)Sr2Y2V2 octahedra. The corner-sharing octahedral tilt angles range from 1-69°. In the third O site, O(2) is bonded to one Sr(1), one Sr(2), and two equivalent Ga(1) atoms to form distorted OSr2Ga2 tetrahedra that share corners with two equivalent O(1)Sr2Y2V2 octahedra, corners with two equivalent O(3)Sr2Y2V2 octahedra, corners with two equivalent O(5)Sr2Y2V2 octahedra, corners with two equivalent O(6)Sr2Y2V2 octahedra, and corners with two equivalent O(2)Sr2Ga2 tetrahedra. The corner-sharing octahedral tilt angles range from 18-75°. In the fourth O site, O(3) is bonded to one Sr(1), one Sr(2), one Y(1), one Y(2), one V(1), and one V(2) atom to form distorted OSr2Y2V2 octahedra that share corners with two equivalent O(1)Sr2Y2V2 octahedra, corners with two equivalent O(3)Sr2Y2V2 octahedra, corners with four equivalent O(5)Sr2Y2V2 octahedra, corners with two equivalent O(2)Sr2Ga2 tetrahedra,  an edgeedge with one O(6)Sr2Y2V2 octahedra, edges with two equivalent O(5)Sr2Y2V2 octahedra, faces with two equivalent O(1)Sr2Y2V2 octahedra, and faces with two equivalent O(6)Sr2Y2V2 octahedra. The corner-sharing octahedral tilt angles range from 1-70°. In the fifth O site, O(4) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), one V(2), and one Ga(1) atom. In the sixth O site, O(5) is bonded to one Sr(1), one Sr(2), one Y(1), one Y(2), one V(1), and one V(2) atom to form distorted OSr2Y2V2 octahedra that share corners with two equivalent O(5)Sr2Y2V2 octahedra, corners with two equivalent O(6)Sr2Y2V2 octahedra, corners with four equivalent O(3)Sr2Y2V2 octahedra, corners with two equivalent O(2)Sr2Ga2 tetrahedra,  an edgeedge with one O(1)Sr2Y2V2 octahedra, edges with two equivalent O(3)Sr2Y2V2 octahedra, faces with two equivalent O(1)Sr2Y2V2 octahedra, and faces with two equivalent O(6)Sr2Y2V2 octahedra. The corner-sharing octahedral tilt angles range from 1-70°. In the seventh O site, O(6) is bonded to one Sr(1), one Sr(2), one Y(1), one Y(2), one V(1), and one V(2) atom to form distorted OSr2Y2V2 octahedra that share corners with two equivalent O(5)Sr2Y2V2 octahedra, corners with two equivalent O(6)Sr2Y2V2 octahedra, corners with four equivalent O(1)Sr2Y2V2 octahedra, corners with two equivalent O(2)Sr2Ga2 tetrahedra,  an edgeedge with one O(3)Sr2Y2V2 octahedra, edges with two equivalent O(1)Sr2Y2V2 octahedra, faces with two equivalent O(3)Sr2Y2V2 octahedra, and faces with two equivalent O(5)Sr2Y2V2 octahedra. The corner-sharing octahedral tilt angles range from 1-69°. is represented by the CIF file [CIF]
data_Sr2YV2GaO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.122
_cell_length_b   12.122
_cell_length_c   5.690
_cell_angle_alpha   76.475
_cell_angle_beta   76.475
_cell_angle_gamma   26.593
_symmetry_Int_Tables_number   1
_cell_volume   363.284
_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  0.836  0.856  0.634  1.0
  Sr  Sr1  1  0.144  0.164  0.366  1.0
  Sr  Sr2  1  0.339  0.353  0.179  1.0
  Sr  Sr3  1  0.647  0.661  0.821  1.0
  Y  Y4  1  0.501  0.499  0.000  1.0
  Y  Y5  1  0.002  0.998  0.500  1.0
  V  V6  1  0.569  0.569  0.433  1.0
  V  V7  1  0.930  0.930  0.072  1.0
  V  V8  1  0.070  0.070  0.928  1.0
  V  V9  1  0.431  0.431  0.567  1.0
  Ga  Ga10  1  0.712  0.789  0.182  1.0
  Ga  Ga11  1  0.211  0.288  0.818  1.0
  O  O12  1  0.676  0.191  0.311  1.0
  O  O13  1  0.368  0.131  0.126  1.0
  O  O14  1  0.176  0.691  0.327  1.0
  O  O15  1  0.194  0.153  0.787  1.0
  O  O16  1  0.826  0.313  0.189  1.0
  O  O17  1  0.326  0.813  0.177  1.0
  O  O18  1  0.869  0.632  0.874  1.0
  O  O19  1  0.309  0.824  0.673  1.0
  O  O20  1  0.809  0.324  0.689  1.0
  O  O21  1  0.703  0.650  0.377  1.0
  O  O22  1  0.847  0.806  0.213  1.0
  O  O23  1  0.350  0.297  0.623  1.0
  O  O24  1  0.687  0.174  0.811  1.0
  O  O25  1  0.187  0.674  0.823  1.0
[/CIF]
.
The structure described by Sr2YV2GaO7 crystallizes in the monoclinic C2 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), two equivalent O(4), and two equivalent O(7) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(5), one O(6), one O(7), and two equivalent O(4) atoms. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms. In the second Y site, Y(2) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms. There are two inequivalent V sites. In the first V site, V(1) is bonded to one O(1), one O(3), one O(5), one O(6), and one O(7) atom to form distorted VO5 square pyramids that share corners with four equivalent V(2)O5 square pyramids and  a cornercorner with one Ga(1)O4 tetrahedra. In the second V site, V(2) is bonded to one O(1), one O(3), one O(4), one O(5), and one O(6) atom to form VO5 square pyramids that share corners with four equivalent V(1)O5 square pyramids and  a cornercorner with one Ga(1)O4 tetrahedra. Ga(1) is bonded to one O(4), one O(7), and two equivalent O(2) atoms to form GaO4 tetrahedra that share  a cornercorner with one V(1)O5 square pyramid,  a cornercorner with one V(2)O5 square pyramid, and corners with two equivalent Ga(1)O4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a 4-coordinate geometry to one Sr(2), two equivalent Sr(1), one V(1), and one Ga(1) atom. In the second O site, O(1) is bonded to one Sr(1), one Sr(2), one Y(1), one Y(2), one V(1), and one V(2) atom to form distorted OSr2Y2V2 octahedra that share corners with two equivalent O(1)Sr2Y2V2 octahedra, corners with two equivalent O(3)Sr2Y2V2 octahedra, corners with four equivalent O(6)Sr2Y2V2 octahedra, corners with two equivalent O(2)Sr2Ga2 tetrahedra,  an edgeedge with one O(5)Sr2Y2V2 octahedra, edges with two equivalent O(6)Sr2Y2V2 octahedra, faces with two equivalent O(3)Sr2Y2V2 octahedra, and faces with two equivalent O(5)Sr2Y2V2 octahedra. The corner-sharing octahedral tilt angles range from 1-69°. In the third O site, O(2) is bonded to one Sr(1), one Sr(2), and two equivalent Ga(1) atoms to form distorted OSr2Ga2 tetrahedra that share corners with two equivalent O(1)Sr2Y2V2 octahedra, corners with two equivalent O(3)Sr2Y2V2 octahedra, corners with two equivalent O(5)Sr2Y2V2 octahedra, corners with two equivalent O(6)Sr2Y2V2 octahedra, and corners with two equivalent O(2)Sr2Ga2 tetrahedra. The corner-sharing octahedral tilt angles range from 18-75°. In the fourth O site, O(3) is bonded to one Sr(1), one Sr(2), one Y(1), one Y(2), one V(1), and one V(2) atom to form distorted OSr2Y2V2 octahedra that share corners with two equivalent O(1)Sr2Y2V2 octahedra, corners with two equivalent O(3)Sr2Y2V2 octahedra, corners with four equivalent O(5)Sr2Y2V2 octahedra, corners with two equivalent O(2)Sr2Ga2 tetrahedra,  an edgeedge with one O(6)Sr2Y2V2 octahedra, edges with two equivalent O(5)Sr2Y2V2 octahedra, faces with two equivalent O(1)Sr2Y2V2 octahedra, and faces with two equivalent O(6)Sr2Y2V2 octahedra. The corner-sharing octahedral tilt angles range from 1-70°. In the fifth O site, O(4) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), one V(2), and one Ga(1) atom. In the sixth O site, O(5) is bonded to one Sr(1), one Sr(2), one Y(1), one Y(2), one V(1), and one V(2) atom to form distorted OSr2Y2V2 octahedra that share corners with two equivalent O(5)Sr2Y2V2 octahedra, corners with two equivalent O(6)Sr2Y2V2 octahedra, corners with four equivalent O(3)Sr2Y2V2 octahedra, corners with two equivalent O(2)Sr2Ga2 tetrahedra,  an edgeedge with one O(1)Sr2Y2V2 octahedra, edges with two equivalent O(3)Sr2Y2V2 octahedra, faces with two equivalent O(1)Sr2Y2V2 octahedra, and faces with two equivalent O(6)Sr2Y2V2 octahedra. The corner-sharing octahedral tilt angles range from 1-70°. In the seventh O site, O(6) is bonded to one Sr(1), one Sr(2), one Y(1), one Y(2), one V(1), and one V(2) atom to form distorted OSr2Y2V2 octahedra that share corners with two equivalent O(5)Sr2Y2V2 octahedra, corners with two equivalent O(6)Sr2Y2V2 octahedra, corners with four equivalent O(1)Sr2Y2V2 octahedra, corners with two equivalent O(2)Sr2Ga2 tetrahedra,  an edgeedge with one O(3)Sr2Y2V2 octahedra, edges with two equivalent O(1)Sr2Y2V2 octahedra, faces with two equivalent O(3)Sr2Y2V2 octahedra, and faces with two equivalent O(5)Sr2Y2V2 octahedra. The corner-sharing octahedral tilt angles range from 1-69°. is represented by the CIF file [CIF]
data_Sr2YV2GaO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.122
_cell_length_b   12.122
_cell_length_c   5.690
_cell_angle_alpha   76.475
_cell_angle_beta   76.475
_cell_angle_gamma   26.593
_symmetry_Int_Tables_number   1
_cell_volume   363.284
_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  0.836  0.856  0.634  1.0
  Sr  Sr1  1  0.144  0.164  0.366  1.0
  Sr  Sr2  1  0.339  0.353  0.179  1.0
  Sr  Sr3  1  0.647  0.661  0.821  1.0
  Y  Y4  1  0.501  0.499  0.000  1.0
  Y  Y5  1  0.002  0.998  0.500  1.0
  V  V6  1  0.569  0.569  0.433  1.0
  V  V7  1  0.930  0.930  0.072  1.0
  V  V8  1  0.070  0.070  0.928  1.0
  V  V9  1  0.431  0.431  0.567  1.0
  Ga  Ga10  1  0.712  0.789  0.182  1.0
  Ga  Ga11  1  0.211  0.288  0.818  1.0
  O  O12  1  0.676  0.191  0.311  1.0
  O  O13  1  0.368  0.131  0.126  1.0
  O  O14  1  0.176  0.691  0.327  1.0
  O  O15  1  0.194  0.153  0.787  1.0
  O  O16  1  0.826  0.313  0.189  1.0
  O  O17  1  0.326  0.813  0.177  1.0
  O  O18  1  0.869  0.632  0.874  1.0
  O  O19  1  0.309  0.824  0.673  1.0
  O  O20  1  0.809  0.324  0.689  1.0
  O  O21  1  0.703  0.650  0.377  1.0
  O  O22  1  0.847  0.806  0.213  1.0
  O  O23  1  0.350  0.297  0.623  1.0
  O  O24  1  0.687  0.174  0.811  1.0
  O  O25  1  0.187  0.674  0.823  1.0
[/CIF]
.