Materials Data on ZrCu2(O3F2)4 by Materials Project

Abstract

ZrCu2(O3F2)4 crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four ZrCu2(O3F2)4 clusters. Zr is bonded to six F atoms to form distorted ZrF6 pentagonal pyramids that share corners with two equivalent CuO4F trigonal bipyramids. There are a spread of Zr–F bond distances ranging from 1.99–2.20 Å. Cu is bonded to four O and one F atom to form distorted CuO4F trigonal bipyramids that share a cornercorner with one ZrF6 pentagonal pyramid. There are a spread of Cu–O bond distances ranging from 1.88–2.29 Å. The Cu–F bond length is 2.00 Å. There are six inequivalent O sites. In the first O site, O is bonded in a bent 120 degrees geometry to one Cu and one O atom. The O–O bond length is 1.33 Å. In the second O site, O is bonded in a water-like geometry to one Cu and one F atom. The O–F bond length is 1.41 Å. In the third O site, O is bonded in a bent 120 degrees geometry to one Cu and one O atom. The O–O bond length is 1.32 Å. In the fourth O site, O is bonded in a single-bond geometry to one O atom. The O–O bond length is 1.22 Å. In the fifth O site, O is bonded in a bent 120 degrees geometry to two O atoms. In the sixth O site, O is bonded in a bent 120 degrees geometry to one Cu and one O atom. There are four inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one Zr atom. In the second F site, F is bonded in a single-bond geometry to one O atom. In the third F site, F is bonded in a single-bond geometry to one Zr atom. In the fourth F site, F is bonded in a bent 120 degrees geometry to one Zr and one Cu atom.