Ultrafast Voltammetry of Adsorbed Redox Active Dendrimers with Nanometric Resolution: An Electrochemical Microtome

Amatore, Christian; Bouret, Yann; Maisonhaute, Emmanuel; Goldsmith, Jonas I.; Abruña, Héctor D.

doi:10.1002/1439-7641(20010216)2:2<130::aid-cphc130>3.0.co;2-k

Cited by 94 publications

(118 citation statements)

References 24 publications

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“…From analysis of voltammograms up to 2.5 MV/s (27,28), we determined that the dendrimer, which is spherical in solution, gets "squashed" when it adsorbs and comes to resemble a hemisphere (Figure 4a). We also estimated D hop to be~5 ϫ 10 for the would-be homogeneous rate of electron transfer between Ru II and Ru…”

Section: Electron Transfer Within Nano-objectsmentioning

confidence: 99%

When Voltammetry Reaches Nanoseconds

Amatore

Maisonhaute²

2005

Anal. Chem.

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101

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Section: Electron Transfer Within Nano-objectsmentioning

confidence: 99%

When Voltammetry Reaches Nanoseconds

Amatore

Maisonhaute²

2005

Anal. Chem.

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101

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“…This is analogous to the Dahms-Ruff electron shuttling mechanism observed in fourth generation PAMAM dendrimers recently reported by Amatore and coworkers. 29,30 Copolymerization of the VFc with a second monomer has widened the analytical scope with further sensors being developed. [31][32][33][34] In these cases VFc was polymerized with 2-(methylthio)ethyl methacrylate, 31 2-hydroxyethyl methacrylate 32 and vinylanthracene.…”

Section: Introductionmentioning

confidence: 99%

Vinylferrocene Homopolymer and Copolymers: An Electrochemical Comparison

Robinson

Lawrence

2008

ANAL. SCI.

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Poly(vinylferrocene) (pVFc) homopolymer was synthesized by free radical polymerization, along with a series of pVFcbased copolymers containing either styrene, vinylanthracene or methylmethacrylate. This report details the electrochemical experiments conducted to examine the stability of the various pVFc based polymers, which is shown to be critically dependent on the extent of copolymerization. A trend was found that when the concentration of co-monomer was decreased, electrochemical stability was enhanced. Furthermore incorporation of a second monomer into the polymer chain produced a profound effect on the scan rate behaviour of the vinylferrocene moiety. As the concentration of co-monomer was decreased, the behaviour tended towards that of a diffusion controlled process. These results are of vital significance for the development of pVFc-based electrochemical sensors.

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“…As observed for molecular flower 1, [9] compound 2 adopts an unfolded conformationd ue to the disruption of the weak intramolecular triazole-Zn(II) interactions by the coordination of all the peripheralZ n(II)-porphyrin moieties of 2 with imidazole ligands. As ar esult,a ll the peripheral redox centers are now equivalent and as ingle wave [21] is thus observedf or the first oxidation. Under these conditions, oxidation of the free-base porphyrin stopper of 2 could however not be detected near 1.09 Vasw ithout imidazole.…”

Section: Electrochemistrymentioning

confidence: 63%

A Rotaxane Scaffold for the Construction of Multiporphyrinic Light‐Harvesting Devices

Delavaux‐Nicot

Aziza

Nierengarten

et al. 2017

Chemistry A European J

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As ophisticated photoactive molecular device has been prepared by combiningr ecent conceptsf or the preparation of multifunctional nanomolecules (click chemistry on multifunctional scaffolds) with supramolecular chemistry (self-assembly to prepare rotaxanes). Specifically,aclickable [2]rotaxane scaffold incorporating af ree-base porphyrin stopperh as been prepared and functionalized with ten peripheralZ n(II)-porphyrinm oieties. Electrochemical investigations of the final compound revealed ap eculiar behavior resultingf rom the intramolecular coordinationo ft he Zn(II) porphyrin moieties to 1,2,3-triazoleu nits. Finally,s teady state investigationso ft he compound combining Zn(II) and free-base porphyrin moieties have shown that this compoundi salight-harvesting device capable of channeling the light energy from the peripheralZ n(II)-porphyrins ubunits to the core by singlet-singlet energy transfer.

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Ultrafast Voltammetry of Adsorbed Redox Active Dendrimers with Nanometric Resolution: An Electrochemical Microtome

Cited by 94 publications

References 24 publications

When Voltammetry Reaches Nanoseconds

When Voltammetry Reaches Nanoseconds

Vinylferrocene Homopolymer and Copolymers: An Electrochemical Comparison

A Rotaxane Scaffold for the Construction of Multiporphyrinic Light‐Harvesting Devices

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