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2020-07-02 13:02:00

Researchers from the Zelinsky Institute published a review, concerning the nature of catalytically active species in systems metal/N-heterocyclic carbene ligand

Complexes Metals with N-heterocyclic carbene ligands (M / NHC) are considered the systems of choice in homogeneous catalysis due to their stable metal−ligand framework. However, it becomes obvious that even metal species with a strong M-NHC bond can undergo evolution in catalytic systems. M-NHC bond cleavage processes can cause both deactivation of M / NHC catalyst systems, as well as produce “ligandless” active metal species and thus can be considered as M/NHC precatalyst activation. This, the reactions of metal-NHC bond cleavage have a great impact on the activity and stability of M/NHC catalytic systems and are of vital importance for homogeneous catalysis.

Researchers from the Zelinsky Institute published a review, where they provided systematization of representative M-NHC bond cleavage reactions as well as discussed their potential influence on catalysis. Distinction between the NHC-connected and NHC-disconnected active species is very important for the design of highly efficient M/NHC catalytic systems.

Source:

V. M. Chernyshev, E. A. Denisova, D. B. Eremin, V. P. Ananikov The key role of R-NHC couplings (R = C, H, heteroatom) and M-NHC bond cleavage in the evolution of M/NHC complexes and formation of catalytically active species, Chem. Sci., 2020, accepted manuscript, DOI: 10.1039/D0SC02629H

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The European Academy of Sciences (Academia Europaea) was founded in 1988. It unites about four thousand globally acknowledged experts in mathematics, medicine, natural sciences, humanities, law, economy, and social and political sciences from many countries of Europe. Among its members are also European scientists who live in other regions of the world. Currently, it includes seventy two Nobel laureates and it should be highlighted that many of them were elected to the Academy before winning the Prize.
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