SrY2O4 crystallizes in the orthorhombic Pnma space group. Sr(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one O(4), two equivalent O(2), and three equivalent O(3) atoms to form a mixture of corner and edge-sharing YO6 octahedra. The corner-sharing octahedral tilt angles range from 50-64°. In the second Y site, Y(2) is bonded to one O(2), two equivalent O(4), and three equivalent O(1) atoms to form a mixture of corner and edge-sharing YO6 octahedra. The corner-sharing octahedral tilt angles range from 50-64°. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(1) and three equivalent Y(2) atoms to form a mixture of distorted corner and edge-sharing OSr2Y3 trigonal bipyramids. In the second O site, O(2) is bonded to two equivalent Sr(1), one Y(2), and two equivalent Y(1) atoms to form a mixture of distorted corner and edge-sharing OSr2Y3 trigonal bipyramids. In the third O site, O(3) is bonded to two equivalent Sr(1) and three equivalent Y(1) atoms to form a mixture of corner and edge-sharing OSr2Y3 square pyramids. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to two equivalent Sr(1), one Y(1), and two equivalent Y(2) atoms.
SrY2O4 crystallizes in the orthorhombic Pnma space group. Sr(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Both Sr(1)-O(1) bond lengths are 2.62 Å. There is one shorter (2.76 Å) and one longer (2.88 Å) Sr(1)-O(2) bond length. Both Sr(1)-O(3) bond lengths are 2.61 Å. Both Sr(1)-O(4) bond lengths are 2.72 Å. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one O(4), two equivalent O(2), and three equivalent O(3) atoms to form a mixture of corner and edge-sharing YO6 octahedra. The corner-sharing octahedral tilt angles range from 50-64°. The Y(1)-O(4) bond length is 2.27 Å. Both Y(1)-O(2) bond lengths are 2.21 Å. There is one shorter (2.31 Å) and two longer (2.36 Å) Y(1)-O(3) bond lengths. In the second Y site, Y(2) is bonded to one O(2), two equivalent O(4), and three equivalent O(1) atoms to form a mixture of corner and edge-sharing YO6 octahedra. The corner-sharing octahedral tilt angles range from 50-64°. The Y(2)-O(2) bond length is 2.25 Å. Both Y(2)-O(4) bond lengths are 2.30 Å. There is one shorter (2.26 Å) and two longer (2.33 Å) Y(2)-O(1) bond lengths. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(1) and three equivalent Y(2) atoms to form a mixture of distorted corner and edge-sharing OSr2Y3 trigonal bipyramids. In the second O site, O(2) is bonded to two equivalent Sr(1), one Y(2), and two equivalent Y(1) atoms to form a mixture of distorted corner and edge-sharing OSr2Y3 trigonal bipyramids. In the third O site, O(3) is bonded to two equivalent Sr(1) and three equivalent Y(1) atoms to form a mixture of corner and edge-sharing OSr2Y3 square pyramids. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to two equivalent Sr(1), one Y(1), and two equivalent Y(2) atoms.