Dalton Transactions Blog

In this Dalton Transactions Hot Article, a team from the University of Florence, and Annie Powell from Karlsruhe Institute of Technology carried out a single crystal EPR study on a molecular nanomagnet (MNM).

The study was aimed at confirming the nature of the ground spin state and the fine determination of the magnetic anisotropy of an Fe₁₉ cluster.

Fe-based MNMs like the one reported in this study can be used as models for natural systems and provide clues for understanding the growth of inorganic cores in proteins.

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Single crystal EPR study at 95 GHz of a large Fe based molecular nanomagnet: toward the structuring of magnetic nanoparticle properties
L. Castelli, M. Fittipaldi, A. K. Powell, D. Gatteschi and L. Sorace
Dalton Trans., 2011, Advance Article
DOI: 10.1039/C1DT10311C, Paper

In this Dalton Transactions Hot Article, Fenghua Chen and colleagues prepared multifunctional nanoparticles composed of a Fe₃O₄–Au nanocomposite core and a porous silica shell.

The aim of the synthesis was to maintain the magnetic and optical properties of the nanocomposite while ensuring stability.

The catalytic activity of the product was tested on reduction of o-nitroaniline to benzenediamine by NaBH₄. The core/shell nanoparticles showed improved activity compared to Fe₃O₄–Au composite nanoparticles alone.

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Multifunctional nanocomposites constructed from Fe₃O₄–Au nanoparticle cores and a porous silica shell in the solution phase
Fenghua Chen, Qingtao Chen, Shaoming Fang, Yu’an Sun, Zhijun Chen, Gang Xie and Yaping Du
Dalton Trans., 2011, Advance Article
DOI: 10.1039/C1DT10374A, Paper