Cover Picture: Video Documented Upscaled Synthesis of Salts of the Parent Carbaborate Ion [CB11H12]−, its Undecafluorinated Form [CHB11F11]− and Useful Starting Materials for its Introduction (Chem. Methods 11/2024)

The Front Cover shows the molecular structure of the undecafluorinated carbaborate anion [CHB₁₁F₁₁]⁻, as well as its precursor [CB₁₁H₁₂]⁻ and the starting material [BH₄]⁻. Detailed synthetic protocols for the synthesis of [CB₁₁H₁₂]⁻ and [CHB₁₁F₁₁]⁻ in large scales are provided by Ingo Krossing and co-workers in their Research Article. To facilitate the reproduction of the preparation of these compounds, the synthesis has been filmed and instructive videos are provided with the publication. Starting from the [CHB₁₁F₁₁]⁻ anion, the authors tested its chemical properties and synthesized its trityl ([Ph₃C]⁺) as well as its silver salt ([Ag(odfb)₂]⁺) and used them for a representative hydrosilylation reaction, as well as the oxidation of ferrocene and the ‘magic blue’ amine N(4-C₆H₄Br)₃. More information can be found in the Research Article by I. Krossing and co-workers (DOI: 10.1002/cmtd.202400011).