Materials Data on Sr11(ReO6)4 by Materials Project
Sr11Re4O24 crystallizes in the tetragonal I4_1/a space group. The structure is three-dimensional. there are four inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 4-coordinate geometry to eight O2- atoms. There are four shorter (2.61 Å) and four longer (2.96 Å) Sr–O bond lengths. In the second Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.60–2.74 Å. In the third Sr2+ site, Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.51–2.99 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.39–2.97 Å. There are two inequivalent Re+6.50+ sites. In the first Re+6.50+ site, Re+6.50+ is bonded in an octahedral geometry to six O2- atoms. There are a spread of Re–O bond distances ranging from 1.91–1.99 Å. In the second Re+6.50+ site, Re+6.50+ is bonded in an octahedral geometry to six O2- atoms. There is four shorter (1.91 Å) and two longer (1.92 Å) Re–O bond length. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to five Sr2+ and one Re+6.50+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one Re+6.50+ atom. In the third O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one Re+6.50+ atom. In the fourth O2- site, O2- is bonded in a 5-coordinate geometry to four Sr2+ and one Re+6.50+ atom. In the fifth O2- site, O2- is bonded in a 5-coordinate geometry to four Sr2+ and one Re+6.50+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to four Sr2+ and one Re+6.50+ atom.