Materials Data on Na5TlSn3 by Materials Project
Na5TlSn3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are five inequivalent Na sites. In the first Na site, Na is bonded in a 3-coordinate geometry to four Sn atoms. There are a spread of Na–Sn bond distances ranging from 3.18–3.61 Å. In the second Na site, Na is bonded in a 4-coordinate geometry to one Tl and four Sn atoms. The Na–Tl bond length is 3.34 Å. There are a spread of Na–Sn bond distances ranging from 3.30–3.71 Å. In the third Na site, Na is bonded in a 5-coordinate geometry to two equivalent Tl and three Sn atoms. There are one shorter (3.23 Å) and one longer (3.40 Å) Na–Tl bond lengths. There are a spread of Na–Sn bond distances ranging from 3.17–3.39 Å. In the fourth Na site, Na is bonded in a 2-coordinate geometry to two equivalent Tl and five Sn atoms. There are one shorter (3.24 Å) and one longer (3.76 Å) Na–Tl bond lengths. There are a spread of Na–Sn bond distances ranging from 3.19–3.66 Å. In the fifth Na site, Na is bonded in a 4-coordinate geometry to one Tl and five Sn atoms. The Na–Tl bond length is 3.24 Å. There are a spread of Na–Sn bond distances ranging from 3.26–3.69 Å. Tl is bonded in a 9-coordinate geometry to six Na and three Sn atoms. There are two shorter (3.18 Å) and one longer (3.21 Å) Tl–Sn bond lengths. There are three inequivalent Sn sites. In the first Sn site, Sn is bonded in a 10-coordinate geometry to seven Na, one Tl, and two Sn atoms. There are one shorter (3.00 Å) and one longer (3.03 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a 10-coordinate geometry to seven Na, one Tl, and two Sn atoms. The Sn–Sn bond length is 2.96 Å. In the third Sn site, Sn is bonded in a 10-coordinate geometry to seven Na, one Tl, and two Sn atoms.