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Magnetic and Electronic Properties of Palladium Nanoparticles Coated with pi-Conjugated Tetrathiafulvalenes Derivative.

Magnetic and electronic properties are investigated for Pd nanoparticles coated with a TTF-derivative (EDT-TTF(SCH(3))(SC(10)H(20)SH)) and octadecanethiol organic mixed monolayer. The temperature-independent spin susceptibility and spin concentration of Pd decrease upon the increasing proportion of the TTF-derivative in the organic layer. With the introduction of the derivative, the ESR broad signal originating from the interior of the Pd nanoparticles tends to vanish following the appearance of sharp signals due to the TTF radical. The presence of the TTF molecules enhances the charge transfer from the core Pd nanoparticles. The electronic state of the Pd nanoparticles changes as a consequence of the contributions of both the quantum-size effect and the charge-transfer effect between the Pd core, TTF-derivative, and alkanethiol.[1]

References

  1. Magnetic and Electronic Properties of Palladium Nanoparticles Coated with pi-Conjugated Tetrathiafulvalenes Derivative. Tu, W., Fukui, K., Miyazaki, A., Enoki, T. The journal of physical chemistry. B, Condensed matter, materials, surfaces, interfaces & biophysical. (2006) [Pubmed]
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