Materials Data on TlPbF7 by Materials Project
TlPbF7 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Tl3+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of Tl–F bond distances ranging from 2.22–2.38 Å. Pb4+ is bonded in an octahedral geometry to six F1- atoms. There are a spread of Pb–F bond distances ranging from 2.08–2.12 Å. There are seven inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent Tl3+ atoms. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to one Tl3+ and one Pb4+ atom. In the third F1- site, F1- is bonded in a bent 150 degrees geometry to one Tl3+ and one Pb4+ atom. In the fourth F1- site, F1- is bonded in a bent 150 degrees geometry to one Tl3+ and one Pb4+ atom. In the fifth F1- site, F1- is bonded in a distorted linear geometry to one Tl3+ and one Pb4+ atom. In the sixth F1- site, F1- is bonded in a bent 150 degrees geometry to one Tl3+ and one Pb4+ atom. In the seventh F1- site, F1- is bonded in a 2-coordinate geometry to one Tl3+ and one Pb4+ atom.