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Strongly reducing magnesium(0) complexes.

B Rösch¹, T X Gentner¹, J Eyselein¹

¹Department of Chemistry and Pharmacy, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany.

|April 29, 2021

Summary

This summary is machine-generated.

Researchers developed novel magnesium(0) complexes, stabilizing highly reactive metal atoms. These electron-rich compounds exhibit strong nucleophilic and reducing properties, challenging previous understandings of magnesium chemistry.

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Area of Science:

Inorganic Chemistry
Organometallic Chemistry
Main Group Chemistry

Background:

Zero oxidation state metal complexes are typically known for noble transition metals.
Isolating early-main-group s-block metals in their zero oxidation state is challenging due to their high reactivity and tendency to oxidize.
Previous research has focused on transition metals, with limited examples for p-block and semimetal elements.

Purpose of the Study:

To synthesize and characterize stable zero-oxidation-state magnesium (magnesium(0)) complexes.
To investigate the reactivity and properties of these novel magnesium(0) compounds.
To explore the potential of these complexes as specialized reducing agents.

Main Methods:

Synthesis of magnesium(0) complexes stabilized by superbulky, monoanionic, β-diketiminate ligands.
Characterization of the electronic and structural properties of the magnesium complexes.
Evaluation of the reducing power of the magnesium(0) complexes, including reduction of Na+ to Na0.

Main Results:

Successful isolation and characterization of magnesium(0) complexes.
Demonstration of electron-rich, nucleophilic, and strongly reducing magnesium centers.
Observation of the reduction of sodium ions (Na+) to sodium metal (Na0) by the magnesium(0) complexes.
Characterization of a linear Mg3 core complex, potentially representing a MgI-Mg0-MgI unit.

Conclusions:

The development of stabilized magnesium(0) complexes opens new avenues in main group chemistry.
These complexes exhibit unique reactivity, acting as potent nucleophiles and reducing agents.
The findings suggest potential applications for these magnesium(0) complexes as specialized reducing agents in chemical synthesis.