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A cerium(IV)-carbon multiple bond.

Matthew Gregson¹, Erli Lu, Jonathan McMaster

¹School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD (United Kingdom).

Angewandte Chemie (International Ed. in English)

|November 28, 2013

Summary

This summary is machine-generated.

Researchers synthesized a novel cerium(IV)-carbene complex through one-electron oxidation, creating the first lanthanide(IV)-element multiple bond. This method circumvents decomposition issues common with cerium(III) oxidations.

Keywords:

carbenes cerium density functional theory lanthanides multiple bonding

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Area of Science:

Organometallic Chemistry
Lanthanide Chemistry

Background:

Oxidation of cerium(III) compounds often leads to decomposition.
Lanthanide-element multiple bonds are rare and synthetically challenging.

Purpose of the Study:

To develop a straightforward synthesis of a cerium(IV)-carbene complex.
To characterize the first lanthanide(IV)-element multiple bond.

Main Methods:

One-electron oxidation of an anionic cerium(III)-carbene precursor.
Characterization of the resulting cerium(IV)-carbene complex.

Main Results:

A stable cerium(IV)-carbene complex was successfully synthesized.
The complex exhibits a twofold bonding interaction between cerium and carbon, representing a lanthanide(IV)-element multiple bond.
This synthetic route avoids decomposition pathways observed with neutral cerium(III) precursors.

Conclusions:

Anionic cerium(III) precursors offer a viable route to cerium(IV)-carbene complexes.
The discovery of the first lanthanide(IV)-element multiple bond expands the understanding of bonding in f-element organometallics.