AI Article Synopsis
- The study presents the synthesis of a new bulky organic cation salt, bis(tetraphenylarsonium) hexafluoridotechnetate(IV) dihydrate, highlighting its unique properties.
- This is the first instance of an arsonium salt associated with the hexafluoridotechnetate(IV) dianion, showcasing a significant advancement in the chemistry of transition-metal fluoride salts.
- The compound crystallizes in a triclinic structure with specific geometric properties, and its electrochemical behavior indicates a one-electron reversible oxidation.
Article Abstract
Reports of quadrivalent transition-metal fluoride salts containing bulky organic cations are limited. In this context, we prepared the bis(tetraphenylarsonium) hexafluoridotechnetate(IV) dihydrate salt, (CHAs)[TcF]·2HO, by a cation metathesis reaction of (NH)[TcF] in water. This is the first report of an arsonium salt of the hexafluoridotechnetate(IV) dianion. (AsPh)[TcF]·2HO crystallizes in the triclinic space group P-1. The [TcF] anion adopts a slightly distorted octahedral geometry with an average Tc-F bond length of 1.933 Å. The cyclic voltammogram of (AsPh)[TcF]·2HO in CHCN shows a one-electron reversible oxidation wave at 1.496 V.
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| http://dx.doi.org/10.1107/S2053229619014724 | DOI Listing |
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