Reactivity of Metal Complexes with Redox-Active Ligands
A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Inorganic Chemistry".
Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 23133
Special Issue Editor
Interests: chemistry of coordination and cluster compounds of transition metals; chalcogenide clusters of early transition metals; transition metal complexes with redox-active ligands
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Special Issue Information
Dear Colleagues,
Redox-active ligands are capable of being in several stable oxidation states, between which reversible redox changes are possible. They were introduced in the late 1960s and are now widely exploited by synthetic chemists to obtain coordination compounds of metals with unusual chemical properties.
The classical redox-active ligands include α-diimines, dithiolenes, and o-quinones. A unique property of these ligands lies in their ability to reversibly transform into radical anion or dianionic forms while maintaining a bond with a metal atom. Acenaphthene-1,2-diimine (bian) ligands are of particular note, as they are capable of accepting up to four electrons due to the reduction of both diimine and naphthalene components.
Transition metal complexes in combination with redox-active ligands are often used to stimulate redox-based catalytic reactions and to activate small molecules. Redox-active ligands are part of many metalloenzymes in living systems, participating in electron transfer processes. For non-transition metals, unlike transition metals, a change in the oxidation state is not characteristic. However, the combination of non-transition metals and a redox-active ligand induces oxidative addition and reductive elimination reactions. This property makes such complexes similar to catalytically active compounds of transition metals and opens up the possibility of their use in catalysis.
Dr. Artem L. Gushchin
Guest Editor
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Keywords
- Redox-active ligands
- Transition metals
- Non-transition metals
- Reactivity
- Synthesis
- Structure
- Catalysis
- Activation of small molecules
- Electrochemistry
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