Materials Data on Cu3Hg2(Te3O8)2 by Materials Project
Hg2Cu3(Te3O8)2 crystallizes in the tetragonal P42_12 space group. The structure is three-dimensional. there are three inequivalent Cu+1.33+ sites. In the first Cu+1.33+ site, Cu+1.33+ is bonded in a rectangular see-saw-like geometry to four equivalent O2- atoms. All Cu–O bond lengths are 1.94 Å. In the second Cu+1.33+ site, Cu+1.33+ is bonded in a rectangular see-saw-like geometry to four equivalent O2- atoms. All Cu–O bond lengths are 1.96 Å. In the third Cu+1.33+ site, Cu+1.33+ is bonded in a rectangular see-saw-like geometry to four equivalent O2- atoms. All Cu–O bond lengths are 1.96 Å. Hg2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (2.42 Å) and two longer (2.68 Å) Hg–O bond lengths. 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 (1.91 Å) and two longer (1.93 Å) Te–O bond length. In the second Te4+ site, Te4+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are two shorter (1.93 Å) and two longer (2.13 Å) Te–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cu+1.33+, one Hg2+, and one Te4+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Cu+1.33+ and one Te4+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Cu+1.33+, one Hg2+, and one Te4+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Te4+ atoms.