Materials Data on NbFeTe2 by Materials Project
NbFeTe2 crystallizes in the orthorhombic Pmna space group. The structure is two-dimensional and consists of one NbFeTe2 sheet oriented in the (0, 1, 0) direction. Nb2+ is bonded in a 4-coordinate geometry to four Te2- atoms. There are two shorter (2.83 Å) and two longer (2.86 Å) Nb–Te bond lengths. Fe2+ is bonded in a 5-coordinate geometry to one Fe2+ and four Te2- atoms. The Fe–Fe bond length is 2.46 Å. There are a spread of Fe–Te bond distances ranging from 2.61–2.64 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 4-coordinate geometry to two equivalent Nb2+ and two equivalent Fe2+ atoms. In the second Te2- site, Te2- is bonded in a 4-coordinate geometry to two equivalent Nb2+ and two equivalent Fe2+ atoms.