Lithium-ion batteries pose certain drawbacks and alternatives are highly demanded. Requirements such as low corrosiveness, electrochemical stability and suitable electrolytes can be met by magnesium-ion batteries. Metalation of carbazole with Mg in THF in the presence of ethyl bromide yields the sparingly soluble Hauser base [(thf)3Mg(Carb)Br] (1) which shows a Schlenk-type equilibrium with formation of [(thf)3Mg(Carb)2] and [(thf)4MgBr2]. A THF solution of 1 shows a low over-potential and a good cyclability of electrodeposition/-stripping of Mg on a Cu current collector. An improved performance is achieved with the turbo-Hauser bases [(thf)(Carb)Mg(μ-Br/X)2Li(thf)2] (X=Br (2) and Cl (3)) which show a significantly higher solubility in ethereal solvents. The THF solvation energies increase from (thf)xMgBr2 over (thf)xMg(Carb)Br to (thf)xMg(Carb)2 for an equal number x of ligated THF molecules.
Mendeley helps you to discover research relevant for your work.
CITATION STYLE
Schüler, P., Sengupta, S., Zaubitzer, S., Fiesinger, F., Dongmo, S., Görls, H., … Westerhausen, M. (2022). Suitability of Carbazolyl Hauser and Turbo-Hauser Bases as Magnesium-Based Electrolytes. European Journal of Inorganic Chemistry, 2022(17). https://doi.org/10.1002/ejic.202200149