Materials Data on IF7 by Materials Project
IF7 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one fluorine molecule, one IF5 cluster, and one IF7 cluster. In the IF5 cluster, I is bonded in a distorted square pyramidal geometry to five F atoms. There are a spread of I–F bond distances ranging from 1.86–1.98 Å. There are five inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one I atom. In the second F site, F is bonded in a single-bond geometry to one I atom. In the third F site, F is bonded in a single-bond geometry to one I atom. In the fourth F site, F is bonded in a single-bond geometry to one I atom. In the fifth F site, F is bonded in a single-bond geometry to one I atom. In the IF7 cluster, I is bonded in a 5-coordinate geometry to six F atoms. There are a spread of I–F bond distances ranging from 1.87–2.56 Å. There are seven inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one I atom. In the second F site, F is bonded in a single-bond geometry to one I atom. In the third F site, F is bonded in a single-bond geometry to one F atom. The F–F bond length is 1.54 Å. In the fourth F site, F is bonded in a bent 150 degrees geometry to one I and one F atom. In the fifth F site, F is bonded in a single-bond geometry to one I atom. In the sixth F site, F is bonded in a single-bond geometry to one I atom. In the seventh F site, F is bonded in a single-bond geometry to one I atom.