Materials Data on Na2Lu3Te4(IO4)3 by Materials Project

Abstract

Na2Lu3Te4(O4I)3 is Zircon-derived structured and crystallizes in the monoclinic P2/c space group. The structure is three-dimensional. Na1+ is bonded in a 2-coordinate geometry to four O2- and four I1- atoms. There are a spread of Na–O bond distances ranging from 2.28–2.93 Å. There are a spread of Na–I bond distances ranging from 3.32–3.42 Å. There are two inequivalent Lu3+ sites. In the first Lu3+ site, Lu3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Lu–O bond distances ranging from 2.27–2.49 Å. In the second Lu3+ site, Lu3+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are a spread of Lu–O bond distances ranging from 2.27–2.47 Å. There are two inequivalent Te4+ sites. In the first Te4+ site, Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There is one shorter (1.92 Å) and two longer (1.93 Å) Te–O bond length. In the second Te4+ site, Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There are a spread of Te–O bond distances ranging from 1.91–1.93 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded to one Na1+, two Lu3+, and one Te4+ atom to form distorted corner-sharing ONaLu2Te tetrahedra. In the second O2- site, O2- is bonded in a 4-coordinate geometry to one Na1+, two equivalent Lu3+, and one Te4+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to two Lu3+ and one Te4+ atom. In the fourth O2- site, O2- is bonded to one Na1+, two equivalent Lu3+, and one Te4+ atom to form a mixture of edge and corner-sharing ONaLu2Te tetrahedra. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to one Na1+, two Lu3+, and one Te4+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Lu3+ and one Te4+ atom. There are two inequivalent I1- sites. In the first I1- site, I1- is bonded in a 2-coordinate geometry to two equivalent Na1+ atoms. In the second I1- site, I1- is bonded in a 3-coordinate geometry to three equivalent Na1+ atoms.