inorganic question ( Nb to Nb(V) )

[L42L]

Inspired by demorols post (# 518590); how would one go from Niobium metal to Niobium (V) Chloride? (NbCl5)

I believe it is the highest oxidation state of Niobium.

Tube furnace/Cl2 gas? How hot?

Electro chem?

Some Aqua Reagia round about way?

Any thoughts are appreciated.

Thanks!

[Nicodem]

Surelly not with aqueous chemistry, so you can forget aqua regia, electrolysis and similar. Nb(V) salts hydolize to Nb2O5.
I suspect you would need a high temperature chlorination with Cl2. So like you already suspected you would need a special furnace for that.

[gsus]

this is what i have on my computer, and it is understandable.
Georg Brauer, Handbuch der Praparativen Anorganischen Chemie 1444-1446 (1981)
https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000519001-NbCl5.jpeg" target="_blank" title="View this image">