Towards molecular batteries: coverage of small aminosilica nanoparticles with ferrocenyl and pentamethylferrocenyl groups and their redox properties

Tetsuro Kusamoto; Jaime Ruiz; Didier Astruc

doi:10.1039/B9NJ00481E

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New Journal of Chemistry

Issue 11, 2009

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Towards molecular batteries: coverage of small aminosilica nanoparticles with ferrocenyl and pentamethylferrocenyl groups and their redox properties

Tetsuro Kusamoto , Jaime Ruiz and Didier Astruc

New J. Chem., 2009, 33, 2204-2207

DOI: 10.1039/B9NJ00481E
Received 04 Aug 2009, Accepted 16 Sep 2009
First published on the web 02 Oct 2009

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Abstract
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Small aminosilica nanoparticles (NPs, 12 nm SiO₂ core) were covered with ferrocenyl (Fc) and pentamethylferrocenyl (Fc*) groups by reactions with metallocenyl carbonyl chlorides. Cyclic voltammetry in methanol/acetonitrile showed a single fully chemically- and electrochemically-reversible wave with a diffusion-controlled current; colorimetric titrations with [FcCOMe][BF₄] of the Fc-SiO₂ and Fc*-SiO₂ NPs indicated a coverage of the aminosilica NPs of 335 ± 50 Fc or 240 ± 40 Fc* groups.

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Instruments, details of the calculations of the numbers of Fcand Fc* groups per SiO₂ NP, CV in the presence of FeCp*₂ and infrared spectra
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New Journal of Chemistry

Towards molecular batteries: coverage of small aminosilica nanoparticles with ferrocenyl and pentamethylferrocenyl groups and their redox properties

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