Technetium(V) fluoride

Technetium pentafluoride is a binary inorganic chemical compound of technetium metal and fluorine with the chemical formula.

Synthesis
The compound can be synthesised by heating of technetium powder in a jet of fluorine diluted with nitrogen:


 * 2Tc + 5F2 -> 2TcF5

Another way to prepare it is the effect of iodine on technetium hexafluoride solution in iodine pentafluoride:


 * 2TcF6 + I2 -> 2TcF5 + 2IF

Physical properties
Technetium pentafluoride forms yellow crystals of orthorhombic crystal system. It reacts with water, and is volatile.

Chemical properties
The compound is hydrolyzed by water, disproportionating to more stable technetium compounds:
 * 3TcF5 + 8H2O -> HTcO4 + 2TcO2 + 15HF