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Updated: May 29, 2026
09:02
Manganese Oxide Nanoparticle Synthesis by Thermal Decomposition of Manganese(II) Acetylacetonate
Published on: June 18, 2020
Oxidative atom-transfer to a trimanganese complex to form Mn6(μ6-E) (E = O, N) clusters featuring interstitial oxide
Alison R Fout1, Qinliang Zhao, Dianne J Xiao
1Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge Massachusetts 02138, USA.
Journal of the American Chemical Society
|September 28, 2011
Summary
Researchers synthesized a novel trinuclear manganese complex. This complex reacts with oxygen and nitrogen reagents to form unique micro(6)-oxo and micro(6)-nitride hexanuclear manganese complexes, expanding inorganic chemistry.
Area of Science:
- Inorganic Chemistry
- Coordination Chemistry
- Materials Science
Background:
- Manganese complexes are crucial in various catalytic processes.
- Developing novel multinuclear manganese complexes with specific functionalities is an active area of research.
- Understanding the reactivity of manganese clusters with small molecules like oxygen and nitrogen is key to designing new catalysts.
Purpose of the Study:
- To synthesize and characterize a novel trinuclear manganese complex using a hexadentate ligand.
- To investigate the reactivity of this complex with oxygen-atom transfer reagents and inorganic azide.
- To explore the structural and electronic properties of the resulting oxo and nitride multinuclear manganese complexes.
Main Methods:
- Synthesis and characterization of a trinuclear manganese complex ((H)L)Mn(3)(thf)(3).
- Reaction of the trinuclear complex with O-atom transfer reagents to form a micro(6)-oxo complex.
- Reaction with inorganic azide to form a hexanuclear nitride complex, followed by oxidation.
- Electron Paramagnetic Resonance (EPR) spectroscopy and X-ray crystallography for structural and electronic analysis.
Main Results:
- A novel trinuclear manganese complex, ((H)L)Mn(3)(thf)(3), was successfully synthesized.
- The complex readily forms a micro(6)-oxo hexanuclear complex with O-atom transfer reagents.
- Reaction with azide yields a hexanuclear nitride complex, which can be further oxidized.
- EPR and structural analysis distinguished between the oxo and nitride complexes, revealing distinct manganese oxidation states.
Conclusions:
- The hexadentate ligand platform enables the formation of stable multinuclear manganese complexes.
- The synthesized trinuclear manganese complex exhibits versatile reactivity towards oxygen and nitrogen species.
- The study provides insights into the structural diversity and electronic properties of micro(6)-oxo and micro(6)-nitride manganese clusters.
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