Heavy alkali metal complexes of N-heterocyclic carbenes
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N-Heterocyclic carbene complexes of alkali metals (M = Na, K, Rb, Cs) were prepared from the zwitterionic trimethylsilylimidazolium borate [(C6F5)3B(IDipp)SiMe3] (1) by reaction with the corresponding alkali metal tert-butoxides MOtBu. The alkali metal complex... ...
