Materials Data on ZrCd2H12(O3F4)2 by Materials Project

Abstract

ZrCd2H12(O3F4)2 crystallizes in the monoclinic C2/c space group. The structure is two-dimensional and consists of two ZrCd2H12(O3F4)2 sheets oriented in the (0, 0, 1) direction. Zr4+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are four shorter (2.15 Å) and four longer (2.16 Å) Zr–F bond lengths. Cd2+ is bonded to three O2- and four F1- atoms to form corner-sharing CdO3F4 pentagonal bipyramids. There are a spread of Cd–O bond distances ranging from 2.23–2.36 Å. There are a spread of Cd–F bond distances ranging from 2.35–2.54 Å. There are six inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to one Cd2+ and two H1+ atoms. In the second O2- site, O2- is bonded in a distorted water-like geometry to one Cd2+ and two H1+ atoms. In the third O2- site, O2- is bonded in a water-like geometry to one Cd2+ and two H1+ atoms. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a 1-coordinate geometry to one Zr4+ atom. In the second F1- site, F1- is bonded in a 2-coordinate geometry to one Zr4+ and one Cd2+ atom. In the third F1- site, F1- is bonded in a 2-coordinate geometry to one Zr4+ and one Cd2+ atom. In the fourth F1- site, F1- is bonded in a distorted trigonal non-coplanar geometry to one Zr4+ and two equivalent Cd2+ atoms.