Pushing redox potentials to highly positive values using inert fluorobenzenes and weakly coordinating anions.

ABSTRACT: While the development of weakly coordinating anions (WCAs) received much attention, the progress on weakly coordinating and inert solvents almost stagnated. Here we study the effect of strategic F-substitution on the solvent properties of fluorobenzenes C₆F_xH_6-x (xFB, x = 1-5). Asymmetric fluorination leads to dielectric constants as high as 22.1 for 3FB that exceeds acetone (20.7). Combined with the WCAs [Al(OR^F)₄]^- or [(^FRO)₃Al-F-Al(OR^F)₃]^- (R^F = C(CF₃)₃), the xFB solvents push the potentials of Ag⁺ and NO⁺ ions to +1.50/+1.52 V vs. Fc⁺/Fc. The xFB/WCA-system has electrochemical xFB stability windows tha

SUBMITTER: Armbruster C 

PROVIDER: S-EPMC11306567 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature