DOE OSTI2020
Te(S2O7)2 is gamma plutonium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of two Te(S2O7)2 clusters. In one of the Te(S2O7)2 clusters, Te4+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Te–O bond distances ranging from 1.99–2.13 Å. There are four inequivalent S6+ sites. In the first S6+ site, S6+ is bonded to four O2- atoms to form corner-sharing SO4 tetrahedra. There are a spread of S–O bond distances ranging from 1.42–1.61 Å. In the second S6+ site, S6+ is bonded to four O2- atoms to form corner-sharing SO4 tetrahedra. There are a spread of S–O bond distances ranging from 1.42–1.71 Å. In the third S6+ site, S6+ is bonded to four O2- atoms to form corner-sharing SO4 tetrahedra. There are a spread of S–O bond distances ranging from 1.42–1.69 Å. In the fourth S6+ site, S6+ is bonded to four O2- atoms to form corner-sharing SO4 tetrahedra. There are a spread of S–O bond distances ranging from 1.42–1.62 Å. There are fourteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one Te4+ and one S6+ atom. In the fifth O2- site, O2- is bonded in a bent 120 degrees geometry to two S6+ atoms. In the sixth O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Te4+ and one S6+ atom. In the eighth O2- site, O2- is bonded in a 2-coordinate geometry to one Te4+ and one S6+ atom. In the ninth O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the tenth O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the eleventh O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the twelfth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Te4+ and one S6+ atom. In the thirteenth O2- site, O2- is bonded in a bent 120 degrees geometry to two S6+ atoms. In the fourteenth O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In one of the Te(S2O7)2 clusters, Te4+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Te–O bond distances ranging from 2.00–2.11 Å. There are four inequivalent S6+ sites. In the first S6+ site, S6+ is bonded to four O2- atoms to form corner-sharing SO4 tetrahedra. There are a spread of S–O bond distances ranging from 1.42–1.61 Å. In the second S6+ site, S6+ is bonded to four O2- atoms to form corner-sharing SO4 tetrahedra. There are a spread of S–O bond distances ranging from 1.42–1.70 Å. In the third S6+ site, S6+ is bonded to four O2- atoms to form corner-sharing SO4 tetrahedra. There are a spread of S–O bond distances ranging from 1.42–1.70 Å. In the fourth S6+ site, S6+ is bonded to four O2- atoms to form corner-sharing SO4 tetrahedra. There are a spread of S–O bond distances ranging from 1.42–1.61 Å. There are fourteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to one Te4+ and one S6+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two S6+ atoms. In the third O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the sixth O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the seventh O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the eighth O2- site, O2- is bonded in a bent 120 degrees geometry to one Te4+ and one S6+ atom. In the ninth O2- site, O2- is bonded in a bent 120 degrees geometry to two S6+ atoms. In the tenth O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the eleventh O2- site, O2- is bonded in a single-bond geometry to one S6+ atom. In the twelfth O2- site, O2- is bonded in a 2-coordinate geometry to one Te4+ and one S6+ atom. In the thirteenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Te4+ and one S6+ atom. In the fourteenth O2- site, O2- is bonded in a single-bond geometry to one S6+ atom.