DOI: 10.17188/1270981
title: Materials Data on Dy2CuTe5Br2O13 by Materials Project

description: Dy2CuTe5O13Br2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Dy3+ sites. In the first Dy3+ site, Dy3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Dy–O bond distances ranging from 2.30–2.59 Å. In the second Dy3+ site, Dy3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Dy–O bond distances ranging from 2.31–2.55 Å. Cu2+ is bonded in an octahedral geometry to six O2- atoms. There are a spread of Cu–O bond distances ranging from 1.98–2.41 Å. There are five inequivalent Te4+ sites. In the first Te4+ site, Te4+ is bonded in a 4-coordinate geometry to four O2- and one Br1- atom. There are a spread of Te–O bond distances ranging from 1.91–2.35 Å. The Te–Br bond length is 3.16 Å. In the second Te4+ site, Te4+ is bonded in a 3-coordinate geometry to five O2- atoms. There are a spread of Te–O bond distances ranging from 1.94–2.64 Å. In the third Te4+ site, Te4+ is bonded in a 3-coordinate geometry to three O2- and three Br1- atoms. There are a spread of Te–O bond distances ranging from 1.89–1.97 Å. There are a spread of Te–Br bond distances ranging from 3.25–3.48 Å. In the fourth Te4+ site, Te4+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of Te–O bond distances ranging from 1.89–2.19 Å. In the fifth Te4+ site, Te4+ is bonded in a 3-coordinate geometry to three O2- and two Br1- atoms. There is two shorter (1.91 Å) and one longer (1.98 Å) Te–O bond length. There are one shorter (3.14 Å) and one longer (3.24 Å) Te–Br bond lengths. There are thirteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to one Dy3+, one Cu2+, and two equivalent Te4+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Dy3+, two Te4+, and one Br1- atom. The O–Br bond length is 3.38 Å. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two Dy3+ and two Te4+ atoms. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Cu2+ and one Te4+ atom. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Dy3+ and two Te4+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cu2+ and two equivalent Te4+ atoms. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to one Cu2+ and two Te4+ atoms. In the eighth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Dy3+ and one Te4+ atom. In the ninth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Dy3+ and one Te4+ atom. In the tenth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Dy3+ and one Te4+ atom. In the eleventh O2- site, O2- is bonded in a distorted trigonal planar geometry to one Dy3+, one Cu2+, and one Te4+ atom. In the twelfth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Dy3+ and one Te4+ atom. In the thirteenth O2- site, O2- is bonded in a 3-coordinate geometry to one Dy3+, one Cu2+, and one Te4+ atom. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 8-coordinate geometry to three Te4+ atoms. In the second Br1- site, Br1- is bonded in a 1-coordinate geometry to three Te4+ and one O2- atom.