A mesoionic carbene complex of manganese in five oxidation states.

Benjamin WittwerNicole DickmannStephan BergDaniel LeitnerLorenzo TesiDavid HungerRaphael GratzlJoris van Slageren Nicolas I Neuman Dominik Munz Stephan Hohloch

Published in: Chemical communications (Cambridge, England) (2022)

Reaction between a carbazole-based mesoionic carbene ligand and manganese(II) iodide results in the formation of a rare air-stable manganese(IV) complex after aerobic workup. Cyclic voltammetry reveals the complex to be stable in five oxidation states. The electronic structure of all five oxidation states is elucidated chemically, spectroscopically (NMR, high-frequency EPR, UV-Vis, MCD), magnetically, and computationally (DFT, CASSCF).

Keyphrases

high frequency
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solid state
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