Materials Data on TaO10 by Materials Project

Abstract

(TaO3)2(O2)7 crystallizes in the triclinic P1 space group. The structure is two-dimensional and consists of two oxygen molecules; one trioxidane molecule; and one TaO3 sheet oriented in the (0, 0, 1) direction. In the TaO3 sheet, Ta is bonded to five O atoms to form distorted corner-sharing TaO5 trigonal bipyramids. There are a spread of Ta–O bond distances ranging from 1.79–2.00 Å. There are three inequivalent O sites. In the first O site, O is bonded in a bent 150 degrees geometry to two equivalent Ta atoms. In the second O site, O is bonded in a single-bond geometry to one Ta atom. In the third O site, O is bonded in a bent 150 degrees geometry to two equivalent Ta atoms.