Video Documented Upscaled Synthesis of Salts of the Parent Carbaborate Ion [CB11H12]−, its Undecafluorinated Form [CHB11F11]− and Useful Starting Materials for its Introduction

Abstract

In this work, we present our improved protocols for the single batch syntheses of approximately 32 g of [NHMe₃][CB₁₁H₁₂] and 10 g of Na[CHB₁₁F₁₁] as well as salt metathesis reactions, granting access to useful starting materials to introduce the [CHB₁₁F₁₁]⁻ anion. This includes the trityl cation [Ph₃C]⁺ and the bis-1,2-difluorobenzene-silver(I)-complex [Ag(odfb)₂]⁺, as well as some applications of the shown compounds. The described methodology allows the synthesis of large amounts of both the [CB₁₁H₁₂]⁻ and the [CHB₁₁F₁₁]⁻ anion and therefore making them accessible for further reactions. To facilitate the reproducibility, we present video tutorials of the synthetic steps towards Na[CHB₁₁F₁₁].