Materials Data on CIF5 by Materials Project
CF2(CIF5)2CIF4IF4 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one difluoromethane molecule, one CIF4 cluster, two CIF5 clusters, and one IF4 cluster. In the CIF4 cluster, C is bonded in a water-like geometry to one I and two F atoms. The C–I bond length is 2.21 Å. There is one shorter (1.32 Å) and one longer (1.33 Å) C–F bond length. I is bonded in a distorted T-shaped geometry to one C and two F atoms. There are one shorter (2.00 Å) and one longer (2.02 Å) I–F bond lengths. There are four 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 C atom. In the fourth F site, F is bonded in a single-bond geometry to one C atom. In each CIF5 cluster, C is bonded in a trigonal non-coplanar geometry to one I and three F atoms. The C–I bond length is 2.22 Å. All C–F bond lengths are 1.34 Å. I is bonded in a distorted T-shaped geometry to one C and two F atoms. There are one shorter (2.01 Å) and one longer (2.04 Å) I–F bond lengths. There are five inequivalent F sites. In the first F site, F is bonded in a single-bond geometry to one C 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 C atom. In the fourth F site, F is bonded in a single-bond geometry to one C atom. In the fifth F site, F is bonded in a single-bond geometry to one I atom. In the IF4 cluster, I is bonded in a distorted rectangular see-saw-like geometry to four F atoms. There are a spread of I–F bond distances ranging from 1.95–1.97 Å. There are four 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.