Materials Data on C6IF7 by Materials Project
(CF)5CIF2 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of forty fluoromethane molecules; four CIF2 clusters; and two CIF2 ribbons oriented in the (1, 0, 0) direction. In each CIF2 cluster, C+1.33+ is bonded in a distorted single-bond geometry to one I1- atom. The C–I bond length is 2.08 Å. I1- is bonded in a 2-coordinate geometry to one C+1.33+ and two F1- atoms. There are one shorter (2.00 Å) and one longer (2.07 Å) I–F bond lengths. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one I1- atom. In the second F1- site, F1- is bonded in a distorted single-bond geometry to one I1- atom. In each CIF2 ribbon, C+1.33+ is bonded in a distorted single-bond geometry to one I1- atom. The C–I bond length is 2.08 Å. I1- is bonded in a 4-coordinate geometry to one C+1.33+ and three F1- atoms. There are a spread of I–F bond distances ranging from 2.00–2.78 Å. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one I1- atom. In the second F1- site, F1- is bonded in a 1-coordinate geometry to two equivalent I1- atoms.