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SrIn2 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sr is bonded in a 12-coordinate geometry to twelve equivalent In atoms. There are six shorter (3.38 Å) and six longer (3.80 Å) Sr–In bond lengths. In is bonded in a 10-coordinate geometry to six equivalent Sr and four equivalent In atoms. There are three shorter (3.03 Å) and one longer (3.33 Å) In–In bond lengths.
SrIn4 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sr is bonded in a 8-coordinate geometry to sixteen In atoms. There are eight shorter (3.78 Å) and eight longer (3.96 Å) Sr–In bond lengths. There are two inequivalent In sites. In the first In site, In is bonded to four equivalent Sr and four equivalent In atoms to form a mixture of distorted edge, face, and corner-sharing InSr4In4 cuboctahedra. All In–In bond lengths are 2.99 Å. In the second In site, In is bonded in a 9-coordinate geometry to four equivalent Sr and five In atoms. The In–In bond length is 2.82 Å.
Sr3In is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded to four equivalent Sr and four equivalent In atoms to form a mixture of distorted edge, face, and corner-sharing SrSr4In4 tetrahedra. All Sr–Sr bond lengths are 3.75 Å. All Sr–In bond lengths are 3.75 Å. In the second Sr site, Sr is bonded in a body-centered cubic geometry to eight equivalent Sr atoms. In is bonded in a body-centered cubic geometry to eight equivalent Sr atoms.
SrIn4 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Sr is bonded in a 2-coordinate geometry to fifteen In atoms. There are a spread of Sr–In bond distances ranging from 3.55–3.92 Å. There are four inequivalent In sites. In the first In site, In is bonded in a 8-coordinate geometry to four equivalent Sr and four In atoms. There are a spread of In–In bond distances ranging from 2.98–3.10 Å. In the second In site, In is bonded in a 8-coordinate geometry to three equivalent Sr and five In atoms. There are a spread of In–In bond distances ranging from 2.97–3.29 Å. In the third In site, In is bonded in a 10-coordinate geometry to five equivalent Sr and five In atoms. The In–In bond length is 2.90 Å. In the fourth In site, In is bonded in a distorted body-centered cubic geometry to three equivalent Sr and five In atoms. The In–In bond length is 3.35 Å.
Sr3In11 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded in a 2-coordinate geometry to fourteen In atoms. There are a spread of Sr–In bond distances ranging from 3.49–3.88 Å. In the second Sr site, Sr is bonded to twelve In atoms to form SrIn12 cuboctahedra that share edges with two equivalent InSr4In8 cuboctahedra and faces with two equivalent SrIn12 cuboctahedra. There are eight shorter (3.70 Å) and four longer (3.74 Å) Sr–In bond lengths. There are four inequivalent In sites. In the first In site, In is bonded in a 10-coordinate geometry to four Sr and six In atoms. There are a spread of In–In bond distances ranging from 3.02–3.33 Å. In the second In site, In is bonded in a 9-coordinate geometry to four Sr and five In atoms. There are one shorter (2.90 Å) and one longer (3.04 Å) In–In bond lengths. In the third In site, In is bonded in a 10-coordinate geometry to two equivalent Sr and eight In atoms. Both In–In bond lengths are 3.34 Å. In the fourth In site, In is bonded to four equivalent Sr and eight In atoms to form InSr4In8 cuboctahedra that share edges with two equivalent SrIn12 cuboctahedra and faces with two equivalent InSr4In8 cuboctahedra.
Sr5In3 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded to five In atoms to form a mixture of distorted corner, edge, and face-sharing SrIn5 trigonal bipyramids. There are a spread of Sr–In bond distances ranging from 3.55–3.68 Å. In the second Sr site, Sr is bonded in a square co-planar geometry to four equivalent In atoms. All Sr–In bond lengths are 3.54 Å. There are two inequivalent In sites. In the first In site, In is bonded in a 9-coordinate geometry to eight Sr and one In atom. The In–In bond length is 2.90 Å. In the second In site, In is bonded in a 8-coordinate geometry to eight equivalent Sr atoms.
SrIn crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent Sr sites. In the first Sr site, Sr is bonded in a 7-coordinate geometry to seven In atoms. There are a spread of Sr–In bond distances ranging from 3.39–3.78 Å. In the second Sr site, Sr is bonded in a 7-coordinate geometry to seven In atoms. There are a spread of Sr–In bond distances ranging from 3.44–3.63 Å. In the third Sr site, Sr is bonded in a 7-coordinate geometry to seven In atoms. There are a spread of Sr–In bond distances ranging from 3.39–3.77 Å. In the fourth Sr site, Sr is bonded in a 7-coordinate geometry to seven In atoms. There are a spread of Sr–In bond distances ranging from 3.44–3.61 Å. In the fifth Sr site, Sr is bonded in a 7-coordinate geometry to seven In atoms. There are a spread of Sr–In bond distances ranging from 3.39–3.80 Å. In the sixth Sr site, Sr is bonded in a 7-coordinate geometry to seven In atoms. There are a spread of Sr–In bond distances ranging from 3.42–3.63 Å. In the seventh Sr site, Sr is bonded in a 7-coordinate geometry to seven In atoms. There are a spread of Sr–In bond distances ranging from 3.43–3.61 Å. In the eighth Sr site, Sr is bonded in a 7-coordinate geometry to seven In atoms. There are a spread of Sr–In bond distances ranging from 3.39–3.80 Å. There are eight inequivalent In sites. In the first In site, In is bonded in a 10-coordinate geometry to seven Sr and three In atoms. There are two shorter (3.26 Å) and one longer (3.48 Å) In–In bond lengths. In the second In site, In is bonded in a 10-coordinate geometry to seven Sr and three In atoms. There are a spread of In–In bond distances ranging from 3.14–3.44 Å. In the third In site, In is bonded in a 10-coordinate geometry to seven Sr and three In atoms. There are one shorter (3.25 Å) and one longer (3.47 Å) In–In bond lengths. In the fourth In site, In is bonded in a 10-coordinate geometry to seven Sr and three In atoms. There are one shorter (3.22 Å) and one longer (3.47 Å) In–In bond lengths. In the fifth In site, In is bonded in a 10-coordinate geometry to seven Sr and three In atoms. The In–In bond length is 3.28 Å. In the sixth In site, In is bonded in a 10-coordinate geometry to seven Sr and three In atoms. In the seventh In site, In is bonded in a 10-coordinate geometry to seven Sr and three In atoms. The In–In bond length is 3.13 Å. In the eighth In site, In is bonded in a 10-coordinate geometry to seven Sr and three In atoms.