Publication

CS2 Reductive Coupling to Acetylenedithiolate by a Dinuclear Ytterbium(II) Complex

Rosario Scopelliti, Marinella Mazzanti, Julie Renée Michelle Andrez, Davide Toniolo
2019
Journal Articles

Abstract

The activation of CS2 is of interest in a broad range of fields and more particularly in the context of creating new C‐C bonds. The reaction of the dinuclear ytterbium(II) complex [Yb2L4], 1, (L = (OtBu)3SiO‐) with carbon disulphide led to the isolation of unprecedented reduction products. In particular the crystallographic characterization of complex [Yb2L4(µ‐C2S2)], 2 provides the first example of an acetylenedithiolate ligand formed from metal reduction of CS2. Computational studies indicate that this unprecedented reactivity can be ascribed to the unusual binding mode of CS22‐ in the isolated “key intermediate” [Yb2L4(µ‐CS2)], 3 which is resulting from the dinuclear nature of 1.

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https://infoscience.epfl.ch/entities/publication/729a97dd-94cc-45f0-b3d5-41b0d83dca26

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Rosario Scopelliti, Marinella Mazzanti, Julie Renée Michelle Andrez, Davide Toniolo
2019
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/729a97dd-94cc-45f0-b3d5-41b0d83dca26

About this result

Related concepts (32)

Transmetalation

Transmetalation (alt. spelling: transmetallation) is a type of organometallic reaction that involves the transfer of ligands from one metal to another. It has the general form: M1–R + M2–R′ → M1–R′ + M2–R where R and R′ can be, but are not limited to, an alkyl, aryl, alkynyl, allyl, halogen, or pseudohalogen group. The reaction is usually an irreversible process due to thermodynamic and kinetic reasons. Thermodynamics will favor the reaction based on the electronegativities of the metals and kinetics will favor the reaction if there are empty orbitals on both metals.

Suzuki reaction

The Suzuki reaction is an organic reaction, classified as a cross-coupling reaction, where the coupling partners are a boronic acid and an organohalide and the catalyst is a palladium(0) complex. It was first published in 1979 by Akira Suzuki, and he shared the 2010 Nobel Prize in Chemistry with Richard F. Heck and Ei-ichi Negishi for their contribution to the discovery and development of palladium-catalyzed cross-couplings in organic synthesis. This reaction is also known as the Suzuki–Miyaura reaction or simply as the Suzuki coupling.

Ytterbium

Ytterbium is a chemical element with the symbol Yb and atomic number 70. It is a metal, the fourteenth and penultimate element in the lanthanide series, which is the basis of the relative stability of its +2 oxidation state. Like the other lanthanides, its most common oxidation state is +3, as in its oxide, halides, and other compounds. In aqueous solution, like compounds of other late lanthanides, soluble ytterbium compounds form complexes with nine water molecules.

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CS2 Reductive Coupling to Acetylenedithiolate by a Dinuclear Ytterbium(II) Complex

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