Materials Data on TiCuNO4F7 by Materials Project
(TiCu(O2F3)2)2N2F2 crystallizes in the tetragonal P4/n space group. The structure is zero-dimensional and consists of two ammonia molecules, two hydrofluoric acid molecules, and two TiCu(O2F3)2 clusters. In each TiCu(O2F3)2 cluster, Ti is bonded to six F atoms to form TiF6 octahedra that share a cornercorner with one CuO4F square pyramid. There are a spread of Ti–F bond distances ranging from 1.85–1.91 Å. Cu is bonded to four equivalent O and one F atom to form distorted CuO4F square pyramids that share a cornercorner with one TiF6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Cu–O bond lengths are 1.81 Å. The Cu–F bond length is 2.31 Å. O is bonded in a single-bond geometry to one Cu atom. There are three inequivalent F sites. In the first F site, F is bonded in a linear geometry to one Ti and one Cu atom. In the second F site, F is bonded in a single-bond geometry to one Ti atom. In the third F site, F is bonded in a single-bond geometry to one Ti atom.