SrIn2O4 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 In sites. In the first In site, In(1) is bonded to one O(1), two equivalent O(3), and three equivalent O(2) atoms to form a mixture of edge and corner-sharing InO6 octahedra. The corner-sharing octahedral tilt angles range from 49-61°. In the second In site, In(2) is bonded to one O(3), two equivalent O(1), and three equivalent O(4) atoms to form a mixture of edge and corner-sharing InO6 octahedra. The corner-sharing octahedral tilt angles range from 49-61°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Sr(1), one In(1), and two equivalent In(2) atoms. In the second O site, O(2) is bonded to two equivalent Sr(1) and three equivalent In(1) atoms to form a mixture of edge and corner-sharing OSr2In3 square pyramids. In the third O site, O(3) is bonded to two equivalent Sr(1), one In(2), and two equivalent In(1) atoms to form a mixture of distorted edge and corner-sharing OSr2In3 trigonal bipyramids. In the fourth O site, O(4) is bonded to two equivalent Sr(1) and three equivalent In(2) atoms to form a mixture of distorted edge and corner-sharing OSr2In3 trigonal bipyramids.
SrIn2O4 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 2.68 Å. Both Sr(1)-O(2) bond lengths are 2.55 Å. There is one shorter (2.74 Å) and one longer (2.75 Å) Sr(1)-O(3) bond length. Both Sr(1)-O(4) bond lengths are 2.55 Å. There are two inequivalent In sites. In the first In site, In(1) is bonded to one O(1), two equivalent O(3), and three equivalent O(2) atoms to form a mixture of edge and corner-sharing InO6 octahedra. The corner-sharing octahedral tilt angles range from 49-61°. The In(1)-O(1) bond length is 2.20 Å. Both In(1)-O(3) bond lengths are 2.16 Å. There is one shorter (2.22 Å) and two longer (2.24 Å) In(1)-O(2) bond lengths. In the second In site, In(2) is bonded to one O(3), two equivalent O(1), and three equivalent O(4) atoms to form a mixture of edge and corner-sharing InO6 octahedra. The corner-sharing octahedral tilt angles range from 49-61°. The In(2)-O(3) bond length is 2.18 Å. Both In(2)-O(1) bond lengths are 2.22 Å. There is one shorter (2.15 Å) and two longer (2.25 Å) In(2)-O(4) bond lengths. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Sr(1), one In(1), and two equivalent In(2) atoms. In the second O site, O(2) is bonded to two equivalent Sr(1) and three equivalent In(1) atoms to form a mixture of edge and corner-sharing OSr2In3 square pyramids. In the third O site, O(3) is bonded to two equivalent Sr(1), one In(2), and two equivalent In(1) atoms to form a mixture of distorted edge and corner-sharing OSr2In3 trigonal bipyramids. In the fourth O site, O(4) is bonded to two equivalent Sr(1) and three equivalent In(2) atoms to form a mixture of distorted edge and corner-sharing OSr2In3 trigonal bipyramids.