Materials Data on ReO2F3 by Materials Project
ReO2F3 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of two ReO2F3 ribbons oriented in the (0, 1, 0) direction. Re7+ is bonded to two O2- and four F1- atoms to form distorted corner-sharing ReO2F4 octahedra. The corner-sharing octahedral tilt angles are 31°. Both Re–O bond lengths are 1.70 Å. There are a spread of Re–F bond distances ranging from 1.86–2.17 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Re7+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one Re7+ atom. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Re7+ atom. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent Re7+ atoms. In the third F1- site, F1- is bonded in a single-bond geometry to one Re7+ atom.