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Materials Data on TiNF by Materials Project

TiNF crystallizes in the tetragonal I4_1md space group. The structure is three-dimensional. Ti4+ is bonded to three equivalent N3- and two equivalent F1- atoms to form distorted corner-sharing TiN3F2 trigonal bipyramids. There is one shorter (1.81 Å) and two longer (2.07 Å) Ti–N bond length. Both Ti–F bond lengths are 1.96 Å. N3- is bonded in a 3-coordinate geometry to three equivalent Ti4+ atoms. F1- is bonded in a linear geometry to two equivalent Ti4+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on TiNF5 by Materials Project

TiF4NF crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of sixteen monofluoroamine molecules and two TiF4 ribbons oriented in the (0, 0, 1) direction. In each TiF4 ribbon, there are four inequivalent Ti4+ sites. In the first Ti4+ site, Ti4+ is bonded to five F1- atoms to form distorted corner-sharing TiF5 trigonal bipyramids. There are a spread of Ti–F bond distances ranging from 1.75–2.01 Å. In the second Ti4+ site, Ti4+ is bonded to five F1- atoms to form corner-sharing TiF5 trigonal bipyramids. There are a spread of Ti–F bond distances ranging from 1.76–2.02 Å. In the third Ti4+ site, Ti4+ is bonded to five F1- atoms to form distorted corner-sharing TiF5 trigonal bipyramids. There are a spread of Ti–F bond distances ranging from 1.76–2.01 Å. In the fourth Ti4+ site, Ti4+ is bonded to five F1- atoms to form distorted corner-sharing TiF5 trigonal bipyramids. There are a spread of Ti–F bond distances ranging from 1.76–2.00 Å. There are sixteen inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Ti4+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one Ti4+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one Ti4+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one Ti4+ atom. In the fifth F1- site, F1- is bonded in a bent 150 degrees geometry to two Ti4+ atoms. In the sixth F1- site, F1- is bonded in a single-bond geometry to one Ti4+ atom. In the seventh F1- site, F1- is bonded in a single-bond geometry to one Ti4+ atom. In the eighth F1- site, F1- is bonded in a single-bond geometry to one Ti4+ atom. In the ninth F1- site, F1- is bonded in a bent 150 degrees geometry to two Ti4+ atoms. In the tenth F1- site, F1- is bonded in a linear geometry to two Ti4+ atoms. In the eleventh F1- site, F1- is bonded in a single-bond geometry to one Ti4+ atom. In the twelfth F1- site, F1- is bonded in a single-bond geometry to one Ti4+ atom. In the thirteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two Ti4+ atoms. In the fourteenth F1- site, F1- is bonded in a single-bond geometry to one Ti4+ atom. In the fifteenth F1- site, F1- is bonded in a single-bond geometry to one Ti4+ atom. In the sixteenth F1- site, F1- is bonded in a single-bond geometry to one Ti4+ atom.

36 MATERIALS SCIENCE↗

Materials Data on TiNF by Materials Project

TiNF crystallizes in the orthorhombic Pmmn space group. The structure is two-dimensional and consists of one TiNF sheet oriented in the (0, 0, 1) direction. Ti4+ is bonded to four equivalent N3- and two equivalent F1- atoms to form a mixture of edge and corner-sharing TiN4F2 octahedra. The corner-sharing octahedral tilt angles are 20°. All Ti–N bond lengths are 2.01 Å. Both Ti–F bond lengths are 2.04 Å. N3- is bonded to four equivalent Ti4+ atoms to form a mixture of distorted edge and corner-sharing NTi4 trigonal pyramids. F1- is bonded in a water-like geometry to two equivalent Ti4+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ti(NF2)3 by Materials Project

TiNF6N2 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional and consists of eight ammonia molecules and one TiNF6 framework. In the TiNF6 framework, Ti3+ is bonded to six equivalent F1- atoms to form TiF6 octahedra that share corners with six equivalent NF6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Ti–F bond lengths are 1.91 Å. N1+ is bonded to six equivalent F1- atoms to form NF6 octahedra that share corners with six equivalent TiF6 octahedra. The corner-sharing octahedral tilt angles are 0°. All N–F bond lengths are 2.08 Å. F1- is bonded in a distorted linear geometry to one Ti3+ and one N1+ atom.

36 MATERIALS SCIENCE↗