A mesoionic carbene complex of manganese in five oxidation states

Benjamin Wittwer,Nicole Dickmann, Stephan Berg,Daniel Leitner,Lorenzo Tesi,David Hunger, Raphael Gratzl,Joris van Slageren,Nicolas I Neuman,Dominik Munz,Stephan Hohloch

Chemical Communications（2022）

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摘要

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).

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关键词

mesoionic carbene complex,manganese,oxidation

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