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

pdf

File Size

591 KB

Language

English

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