Materials Data on Sb8Cl2O21 by Materials Project

(Sb2O3)8O2(ClO4)4 crystallizes in the monoclinic C2/c space group. The structure is two-dimensional and consists of four water molecules; eight ClO4 clusters; and two Sb2O3 sheets oriented in the (1, 0, 0) direction. In each ClO4 cluster, there are four inequivalent O sites. In the first O site, O is bonded in a distorted single-bond geometry to one Cl atom. The O–Cl bond length is 1.49 Å. In the second O site, O is bonded in a single-bond geometry to one Cl atom. The O–Cl bond length is 1.46 Å. In the third O site, O is bonded in a single-bond geometry to one Cl atom. The O–Cl bond length is 1.46 Å. In the fourth O site, O is bonded in a single-bond geometry to one Cl atom. The O–Cl bond length is 1.45 Å. Cl is bonded in a tetrahedral geometry to four O atoms. In each Sb2O3 sheet, there are four inequivalent Sb sites. In the first Sb site, Sb is bonded in a rectangular see-saw-like geometry to four O atoms. There are a spread of Sb–O bond distances ranging from 2.00–2.18 Å. In the second Sb site, Sb is bonded in a distorted rectangular see-saw-like geometry to four O atoms. There are a spread of Sb–O bond distances ranging from 1.99–2.21 Å. In the third Sb site, Sb is bonded in a 4-coordinate geometry to three O atoms. There are a spread of Sb–O bond distances ranging from 1.99–2.09 Å. In the fourth Sb site, Sb is bonded in a distorted rectangular see-saw-like geometry to four O atoms. There are a spread of Sb–O bond distances ranging from 2.01–2.25 Å. There are six inequivalent O sites. In the first O site, O is bonded in a distorted trigonal non-coplanar geometry to three Sb atoms. In the second O site, O is bonded in a distorted trigonal planar geometry to three Sb atoms. In the third O site, O is bonded in a distorted trigonal non-coplanar geometry to three Sb atoms. In the fourth O site, O is bonded in a water-like geometry to two Sb atoms. In the fifth O site, O is bonded in a bent 120 degrees geometry to two Sb atoms. In the sixth O site, O is bonded in a bent 120 degrees geometry to two Sb atoms.