Materials Data on Ti(FeGe)6 by Materials Project
TiFe6Ge6 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Ti is bonded to eight Ge atoms to form distorted edge-sharing TiGe8 hexagonal bipyramids. There are two shorter (2.67 Å) and six longer (2.87 Å) Ti–Ge bond lengths. Fe is bonded in a 12-coordinate geometry to six Ge atoms. There are a spread of Fe–Ge bond distances ranging from 2.45–2.58 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 6-coordinate geometry to six equivalent Fe atoms. In the second Ge site, Ge is bonded in a 12-coordinate geometry to three equivalent Ti and six equivalent Fe atoms. In the third Ge site, Ge is bonded in a 8-coordinate geometry to one Ti, six equivalent Fe, and one Ge atom. The Ge–Ge bond length is 2.62 Å.