Preparation and Characterization of Phosphazenium Trifluoromethylselanide and Trifluoromethyltellanide Salts Starting from HCF<sub>3</sub>
The deprotonation of HCF<sub>3</sub>, an industrial waste product, by the super basic phosphazene, {(Et<sub>2</sub>N)<sub>3</sub>P = N}<sub>3</sub>P = N<i><sup>t</sup></i>Bu (EtP<sub>4</sub>), enables the syntheses and characterization of the trifluoromethylchalcogenide salts [EtP<sub>4</sub>H]<sup>+</sup>[SeCF<sub>3</sub>]<sup>-</sup> and [EtP<sub>4</sub>H]<sup>+</sup>[TeCF<sub>3</sub>]<sup>-</sup>. These salts were generated through nucleophilic trifluoromethylation of elemental selenium and tellurium. The use of HCF<sub>3</sub> as a readily available and cheap CF<sub>3</sub> source makes this an efficient and economical approach to trifluoromethylselanide and trifluoromethyltellanide salts. In addition to the structural elucidation of both salts, the reactivity of the selanide salt was explored, whereby the new gallium and indium species, [EtP<sub>4</sub>H]<sup>+</sup>[(C<sub>2</sub>F<sub>5</sub>)<sub>3</sub>GaSeCF<sub>3</sub>]<sup>-</sup> and [EtP<sub>4</sub>H]<sup>+</sup>[(C<sub>2</sub>F<sub>5</sub>)<sub>3</sub>InSeCF<sub>3</sub>]<sup>-</sup> were synthesized.
Authors
- Beate Neumann (ORCID: https://orcid.org/0000-0002-6899-502X)
- Berthold Hoge (ORCID: https://orcid.org/0000-0001-9610-8478)
- H.-G. Stammler (ORCID: https://orcid.org/0000-0002-0918-7057)
- Katharina Wels
Institutions
- Bielefeld University (DE)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2025-06-24
- DOI
- https://doi.org/10.1021/acs.inorgchem.5c02006
- Citations
- 1
- Primary Topic
- Synthesis and characterization of novel inorganic/organometallic compounds
- Type
- article
- Field-Weighted Citation Impact
- 0.54