Document Type
Article
Publication Date
11-14-2019
Publication Title
Acta Crystallographica Section C: Structural Chemistry
Publisher
International Union of Crystallography
Volume
75
Issue
12
First page number:
1613
Last page number:
1616
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, (C24H20As)2[TcF6]·2H2O, by a cation metathesis reaction of (NH4)2[TcF6] in water. This is the first report of an arsonium salt of the hexafluoridotechnetate(IV) dianion. (AsPh4)2[TcF6]·2H2O crystallizes in the triclinic space group P[\overline{1}]. The [TcF6]2− anion adopts a slightly distorted octahedral geometry with an average Tc—F bond length of 1.933 Å. The cyclic voltammogram of (AsPh4)2[TcF6]·2H2O in CH3CN shows a one-electron reversible oxidation wave at 1.496 V.
Keywords
Technetium; Fluorine; Arsonium; Radiochemistry; Crystal structure; UV–Vis spectroscopy; Cyclic voltammetry
Disciplines
Chemistry | Radiochemistry
File Format
File Size
591 KB
Language
English
Repository Citation
Balasekaran, S. M.,
Poineau, F.
(2019).
Bis(tetraphenylarsonium) Hexafluoridotechnetate(IV) Dihydrate: Preparation, Structure and Spectroscopic Analysis.
Acta Crystallographica Section C: Structural Chemistry, 75(12),
1613-1616.
International Union of Crystallography.
http://dx.doi.org/10.1107/S2053229619014724