Materials Data on TbNbO4 by Materials Project

Abstract

TbNbO4 is Zircon-like structured and crystallizes in the monoclinic Pc space group. The structure is three-dimensional. Tb3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are six shorter (2.38 Å) and two longer (2.39 Å) Tb–O bond lengths. Nb5+ is bonded in a distorted tetrahedral geometry to four O2- atoms. All Nb–O bond lengths are 1.91 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Tb3+ and one Nb5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Tb3+ and one Nb5+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Tb3+ and one Nb5+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Tb3+ and one Nb5+ atom.