Materials Data on TcF3 by Materials Project
TcF3 crystallizes in the monoclinic Pm space group. The structure is one-dimensional and consists of two TcF3 ribbons oriented in the (0, 1, 0) direction. Tc3+ is bonded in a 6-coordinate geometry to six F1- atoms. There are two shorter (2.06 Å) and four longer (2.09 Å) Tc–F bond lengths. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in an L-shaped geometry to two equivalent Tc3+ atoms. In the second F1- site, F1- is bonded in an L-shaped geometry to two equivalent Tc3+ atoms. In the third F1- site, F1- is bonded in an L-shaped geometry to two equivalent Tc3+ atoms.
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