In3Sn is Protactinium-derived structured and crystallizes in the monoclinic C2/m space group. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 10-coordinate geometry to three equivalent In(2), four equivalent In(1), and three equivalent Sn(1) atoms. In the second In site, In(2) is bonded in a distorted q6 geometry to four equivalent In(2) and six equivalent In(1) atoms. Sn(1) is bonded in a distorted q6 geometry to six equivalent In(1) and four equivalent Sn(1) atoms.
In3Sn is Protactinium-derived structured and crystallizes in the monoclinic C2/m space group. There are two inequivalent In sites. In the first In site, In(1) is bonded in a 10-coordinate geometry to three equivalent In(2), four equivalent In(1), and three equivalent Sn(1) atoms. There are two shorter (3.35 Å) and one longer (3.36 Å) In(1)-In(2) bond length. All In(1)-In(1) bond lengths are 3.27 Å. There are two shorter (3.38 Å) and one longer (3.40 Å) In(1)-Sn(1) bond length. In the second In site, In(2) is bonded in a distorted q6 geometry to four equivalent In(2) and six equivalent In(1) atoms. All In(2)-In(2) bond lengths are 3.27 Å. Sn(1) is bonded in a distorted q6 geometry to six equivalent In(1) and four equivalent Sn(1) atoms. All Sn(1)-Sn(1) bond lengths are 3.27 Å.