Sr2InN2 crystallizes in the orthorhombic Cmce space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to two equivalent N(2) and three equivalent N(1) atoms to form a mixture of distorted edge and corner-sharing SrN5 trigonal bipyramids. In the second Sr site, Sr(2) is bonded to two equivalent N(1) and three equivalent N(2) atoms to form a mixture of edge and corner-sharing SrN5 square pyramids. In(1) is bonded in a bent 120 degrees geometry to one N(1) and one N(2) atom. There are two inequivalent N sites. In the first N site, N(1) is bonded to two equivalent Sr(2), three equivalent Sr(1), and one In(1) atom to form a mixture of distorted edge and corner-sharing NSr5In octahedra. The corner-sharing octahedral tilt angles range from 2-57°. In the second N site, N(2) is bonded to two equivalent Sr(1), three equivalent Sr(2), and one In(1) atom to form a mixture of edge and corner-sharing NSr5In octahedra. The corner-sharing octahedral tilt angles range from 2-57°.
Sr2InN2 crystallizes in the orthorhombic Cmce space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to two equivalent N(2) and three equivalent N(1) atoms to form a mixture of distorted edge and corner-sharing SrN5 trigonal bipyramids. There is one shorter (2.58 Å) and one longer (2.85 Å) Sr(1)-N(2) bond length. There are two shorter (2.71 Å) and one longer (2.84 Å) Sr(1)-N(1) bond length. In the second Sr site, Sr(2) is bonded to two equivalent N(1) and three equivalent N(2) atoms to form a mixture of edge and corner-sharing SrN5 square pyramids. There is one shorter (2.61 Å) and one longer (2.71 Å) Sr(2)-N(1) bond length. There are two shorter (2.70 Å) and one longer (2.78 Å) Sr(2)-N(2) bond length. In(1) is bonded in a bent 120 degrees geometry to one N(1) and one N(2) atom. The In(1)-N(1) bond length is 2.16 Å. The In(1)-N(2) bond length is 2.12 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded to two equivalent Sr(2), three equivalent Sr(1), and one In(1) atom to form a mixture of distorted edge and corner-sharing NSr5In octahedra. The corner-sharing octahedral tilt angles range from 2-57°. In the second N site, N(2) is bonded to two equivalent Sr(1), three equivalent Sr(2), and one In(1) atom to form a mixture of edge and corner-sharing NSr5In octahedra. The corner-sharing octahedral tilt angles range from 2-57°.