[Mn12O12(O2CMe)12(NO3)4(H2O)4]: facile synthesis of a new type of Mn12 complex
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Updated: Apr 16, 2026

Manganese Oxide Nanoparticle Synthesis by Thermal Decomposition of ManganeseII Acetylacetonate
Published on: June 18, 2020
Annaliese E Thuijs1, George Christou1, Khalil A Abboud1
1Department of Chemistry, College of Liberal Arts and Sciences, University of Florida, PO Box 117200, Gainesville, FL 32611, USA.
Abstract:
The title dodecanuclear Mn complex, namely dodeca-μ(2)-acetato-κ(24)O:O'-tetraaquatetra-μ(2)-nitrato-κ(8)O:O'-tetra-μ(4)-oxido-octa-μ(3)-oxido-tetramanganese(IV)octamanganese(III) nitromethane tetrasolvate, [Mn(12)(CH(3)COO)(12)(NO(3))(4)O(12)(H(2)O)(4)]·4CH(3)NO(2), was synthesized by the reaction of Mn(2+) and Ce(4+) sources in nitromethane with an excess of acetic acid. This compound is distinct from the previously known single-molecule magnet [Mn(12)O(12)(O(2)CMe)(16)(H(2)O)(4)], synthesized by Lis [Acta Cryst. (1980), B36, 2042-2044]. It is the first Mn(12)-type molecule containing nitrate ligands to be directly synthesized without the use of a preformed cluster. Additionally, this molecule is distinct from all other known Mn(12) complexes due to intermolecular hydrogen bonds between the nitrate and water ligands, which give rise to a three-dimensional network. The complex is compared to other known Mn(12) molecules in terms of its structural parameters and symmetry.
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