DOE OSTI2020
InIn15(SnBr3)16 crystallizes in the triclinic P1 space group. The structure is three-dimensional and consists of one indium molecule and one In15(SnBr3)16 framework. In the In15(SnBr3)16 framework, there are fifteen inequivalent In1+ sites. In the first In1+ site, In1+ is bonded in a 3-coordinate geometry to three Br1- atoms. There are a spread of In–Br bond distances ranging from 3.44–3.50 Å. In the second In1+ site, In1+ is bonded in a 2-coordinate geometry to two Br1- atoms. There are one shorter (3.08 Å) and one longer (3.13 Å) In–Br bond lengths. In the third In1+ site, In1+ is bonded in a 6-coordinate geometry to six Br1- atoms. There are a spread of In–Br bond distances ranging from 3.45–3.55 Å. In the fourth In1+ site, In1+ is bonded in a 4-coordinate geometry to six Br1- atoms. There are a spread of In–Br bond distances ranging from 3.17–3.48 Å. In the fifth In1+ site, In1+ is bonded in a 2-coordinate geometry to four Br1- atoms. There are a spread of In–Br bond distances ranging from 3.06–3.48 Å. In the sixth In1+ site, In1+ is bonded in a 3-coordinate geometry to three Br1- atoms. There are a spread of In–Br bond distances ranging from 3.17–3.39 Å. In the seventh In1+ site, In1+ is bonded in a 3-coordinate geometry to three Br1- atoms. There are a spread of In–Br bond distances ranging from 3.16–3.41 Å. In the eighth In1+ site, In1+ is bonded in a 2-coordinate geometry to three Br1- atoms. There are a spread of In–Br bond distances ranging from 3.19–3.45 Å. In the ninth In1+ site, In1+ is bonded in a 1-coordinate geometry to seven Br1- atoms. There are a spread of In–Br bond distances ranging from 3.38–3.59 Å. In the tenth In1+ site, In1+ is bonded in a 2-coordinate geometry to three Br1- atoms. There are a spread of In–Br bond distances ranging from 3.22–3.46 Å. In the eleventh In1+ site, In1+ is bonded in a 2-coordinate geometry to two Br1- atoms. There are one shorter (3.15 Å) and one longer (3.22 Å) In–Br bond lengths. In the twelfth In1+ site, In1+ is bonded in a 2-coordinate geometry to two Br1- atoms. There are one shorter (3.21 Å) and one longer (3.27 Å) In–Br bond lengths. In the thirteenth In1+ site, In1+ is bonded in a 2-coordinate geometry to two Br1- atoms. There are one shorter (3.08 Å) and one longer (3.15 Å) In–Br bond lengths. In the fourteenth In1+ site, In1+ is bonded in a 2-coordinate geometry to eight Br1- atoms. There are a spread of In–Br bond distances ranging from 3.18–3.54 Å. In the fifteenth In1+ site, In1+ is bonded in a 2-coordinate geometry to two Br1- atoms. There are one shorter (3.10 Å) and one longer (3.14 Å) In–Br bond lengths. There are sixteen inequivalent Sn2+ sites. In the first Sn2+ site, Sn2+ is bonded in a 5-coordinate geometry to three Br1- atoms. There are one shorter (2.72 Å) and two longer (2.85 Å) Sn–Br bond lengths. In the second Sn2+ site, Sn2+ is bonded in a 4-coordinate geometry to four Br1- atoms. There are a spread of Sn–Br bond distances ranging from 2.76–3.19 Å. In the third Sn2+ site, Sn2+ is bonded in a distorted rectangular see-saw-like geometry to four Br1- atoms. There are a spread of Sn–Br bond distances ranging from 2.77–3.14 Å. In the fourth Sn2+ site, Sn2+ is bonded in a 3-coordinate geometry to three Br1- atoms. There are two shorter (2.73 Å) and one longer (2.98 Å) Sn–Br bond lengths. In the fifth Sn2+ site, Sn2+ is bonded in a distorted rectangular see-saw-like geometry to four Br1- atoms. There are a spread of Sn–Br bond distances ranging from 2.75–3.16 Å. In the sixth Sn2+ site, Sn2+ is bonded in a 4-coordinate geometry to four Br1- atoms. There are a spread of Sn–Br bond distances ranging from 2.82–3.18 Å. In the seventh Sn2+ site, Sn2+ is bonded in a 6-coordinate geometry to six Br1- atoms. There are a spread of Sn–Br bond distances ranging from 2.80–3.26 Å. In the eighth Sn2+ site, Sn2+ is bonded in a square pyramidal geometry to five Br1- atoms. There are a spread of Sn–Br bond distances ranging from 2.76–3.16 Å. In the ninth Sn2+ site, Sn2+ is bonded in a distorted rectangular see-saw-like geometry to four Br1- atoms. There are a spread of Sn–Br bond distances ranging from 2.70–3.21 Å. In the tenth Sn2+ site, Sn2+ is bonded in a distorted rectangular see-saw-like geometry to four Br1- atoms. There are a spread of Sn–Br bond distances ranging from 2.71–3.21 Å. In the eleventh Sn2+ site, Sn2+ is bonded in a distorted square pyramidal geometry to five Br1- atoms. There are a spread of Sn–Br bond distances ranging from 2.76–3.27 Å. In the twelfth Sn2+ site, Sn2+ is bonded in a 4-coordinate geometry to four Br1- atoms. There are a spread of Sn–Br bond distances ranging from 2.80–3.18 Å. In the thirteenth Sn2+ site, Sn2+ is bonded in a 4-coordinate geometry to four Br1- atoms. There are a spread of Sn–Br bond distances ranging from 2.78–3.34 Å. In the fourteenth Sn2+ site, Sn2+ is bonded in a 4-coordinate geometry to three Br1- atoms. There are two shorter (2.72 Å) and one longer (3.09 Å) Sn–Br bond lengths. In the fifteenth Sn2+ site, Sn2+ is bonded in a 4-coordinate geometry to four Br1- atoms. There are a spread of Sn–Br bond distances ranging from 2.79–3.19 Å. In the sixteenth Sn2+ site, Sn2+ is bonded in a 5-coordinate geometry to five Br1- atoms. There are a spread of Sn–Br bond distances ranging from 2.74–3.31 Å. There are forty-eight inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a distorted single-bond geometry to one In1+ and one Sn2+ atom. In the second Br1- site, Br1- is bonded in a distorted T-shaped geometry to two In1+ and one Sn2+ atom. In the third Br1- site, Br1- is bonded in a 1-coordinate geometry to one In1+ and one Sn2+ atom. In the fourth Br1- site, Br1- is bonded in a single-bond geometry to one In1+ and one Sn2+ atom. In the fifth Br1- site, Br1- is bonded in a 2-coordinate geometry to two In1+ atoms. In the sixth Br1- site, Br1- is bonded in a 2-coordinate geometry to two Sn2+ atoms. In the seventh Br1- site, Br1- is bonded in a distorted single-bond geometry to one In1+ and one Sn2+ atom. In the eighth Br1- site, Br1- is bonded in a 1-coordinate geometry to two In1+ and one Sn2+ atom. In the ninth Br1- site, Br1- is bonded in a 1-coordinate geometry to two In1+ and one Sn2+ atom. In the tenth Br1- site, Br1- is bonded in a distorted T-shaped geometry to two In1+ and one Sn2+ atom. In the eleventh Br1- site, Br1- is bonded in a bent 150 degrees geometry to one In1+ and one Sn2+ atom. In the twelfth Br1- site, Br1- is bonded in a 2-coordinate geometry to two Sn2+ atoms. In the thirteenth Br1- site, Br1- is bonded in a 2-coordinate geometry to one In1+ and two Sn2+ atoms. In the fourteenth Br1- site, Br1- is bonded in a distorted T-shaped geometry to one In1+ and two Sn2+ atoms. In the fifteenth Br1- site, Br1- is bonded in a distorted T-shaped geometry to one In1+ and two Sn2+ atoms. In the sixteenth Br1- site, Br1- is bonded in a 4-coordinate geometry to two In1+ and two Sn2+ atoms. In the seventeenth Br1- site, Br1- is bonded in a distorted single-bond geometry to one Sn2+ atom. In the eighteenth Br1- site, Br1- is bonded in a 2-coordinate geometry to one In1+ and two Sn2+ atoms. In the nineteenth Br1- site, Br1- is bonded in a 2-coordinate geometry to two In1+ and two Sn2+ atoms. In the twentieth Br1- site, Br1- is bonded in a tetrahedral geometry to two In1+ and two Sn2+ atoms. In the twenty-first Br1- site, Br1- is bonded in a distorted bent 150 degrees geometry to one In1+ and one Sn2+ atom. In the twenty-second Br1- site, Br1- is bonded in a 4-coordinate geometry to two In1+ and two Sn2+ atoms. In the twenty-third Br1- site, Br1- is bonded in a distorted water-like geometry to one In1+ and two Sn2+ atoms. In the twenty-fourth Br1- site, Br1- is bonded in a single-bond geometry to one In1+ and one Sn2+ atom. In the twenty-fifth Br1- site, Br1- is bonded in a distorted single-bond geometry to one In1+ and one Sn2+ atom. In the twenty-sixth Br1- site, Br1- is bonded in a distorted single-bond geometry to one In1+ and one Sn2+ atom. In the twenty-seventh Br1- site, Br1- is bonded in a distorted water-like geometry to two Sn2+ atoms. In the twenty-eighth Br1- site, Br1- is bonded in a 2-coordinate geometry to one In1+ and two Sn2+ atoms. In the twenty-ninth Br1- site, Br1- is bonded in a distorted tetrahedral geometry to two In1+ and two Sn2+ atoms. In the thirtieth Br1- site, Br1- is bonded in a 2-coordinate geometry to one In1+ and two Sn2+ atoms. In the thirty-first Br1- site, Br1- is bonded in a distorted single-bond geometry to two In1+ and one Sn2+ atom. In the thirty-second Br1- site, Br1- is bonded in a distorted single-bond geometry to one Sn2+ atom. In the thirty-third Br1- site, Br1- is bonded in a distorted single-bond geometry to one In1+ and one Sn2+ atom. In the thirty-fourth Br1- site, Br1- is bonded in a distorted T-shaped geometry to one In1+ and two Sn2+ atoms. In the thirty-fifth Br1- site, Br1- is bonded in a distorted T-shaped geometry to one In1+ and two Sn2+ atoms. In the thirty-sixth Br1- site, Br1- is bonded in a distorted single-bond geometry to one Sn2+ atom. In the thirty-seventh Br1- site, Br1- is bonded in a 2-coordinate geometry to one In1+ and two Sn2+ atoms. In the thirty-eighth Br1- site, Br1- is bonded in a bent 150 degrees geometry to one In1+ and one Sn2+ atom. In the thirty-ninth Br1- site, Br1- is bonded in a distorted T-shaped geometry to two In1+ and one Sn2+ atom. In the fortieth Br1- site, Br1- is bonded in a distorted single-bond geometry to one Sn2+ atom. In the forty-first Br1- site, Br1- is bonded in a 1-coordinate geometry to two In1+ and one Sn2+ atom. In the forty-second Br1- site, Br1- is bonded in an L-shaped geometry to two Sn2+ atoms. In the forty-third Br1- site, Br1- is bonded in a distorted single-bond geometry to two In1+ and one Sn2+ atom. In the forty-fourth Br1- site, Br1- is bonded in a 3-coordinate geometry to two In1+ and one Sn2+ atom. In the forty-fifth Br1- site, Br1- is bonded in a 2-coordinate geometry to two In1+ and one Sn2+ atom. In the forty-sixth Br1- site, Br1- is bonded in a distorted single-bond geometry to one In1+ and one Sn2+ atom. In the forty-seventh Br1- site, Br1- is bonded in a distorted T-shaped geometry to two In1+ and one Sn2+ atom. In the forty-eighth Br1- site, Br1- is bonded in a single-bond geometry to one Sn2+ atom.