The Polarographic Chemistry of Ferrocene, Ruthenocene and the Metal Hydrocarbon Ions

Page, John A.; Wilkinson, Geoffrey

doi:10.1021/ja01143a540

Cited by 159 publications

(52 citation statements)

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“…This latter reaction of readily available ethynylcobalticenium hexafluorophosphate [14,15] with primary and secondary amines is facile, quantitative, and does not form byproducts. It yields air-stable, strongly colored push-pull conjugated cobalticenium trans-enamines and thus appears to be an ideal "green" reaction for the efficient and facile functionalization of a variety of aminated dendrimers.…”

Section: Introductionmentioning

confidence: 95%

Metalation of Polyamine Dendrimers with Ethynylcobalticenium for the Construction of Mono‐ and Heterobimetallic Polycationic Metallodendrimers

Wang

Rapakousiou

Ruiz

et al. 2014

Chemistry A European J

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The introduction of robust redox groups at the periphery of common amine-terminated dendrimers is of interest in the design of dendritic nanobatteries, sensors, and redox catalysts. Here we are applying the recently discovered uncatalyzed hydroamination of ethynylcobalticenium, a mild "green" reaction that quantitatively yields trans-enamines without the formation of any byproduct, to functionalize dendrimers that are terminated with primary or secondary amino groups. Poly(amido amine) (PAMAM) dendrimers terminated by primary amino groups and arene-centered dendrimers terminated by secondary amino groups yield dendrimers that contain up to 81 trans-enamine-cobalticenium termini using this reaction. The hydroamination reaction was also conducted with dendrimers that contained ferrocenylmethylamino groups, which yielded dendrimers that contained both ferrocenyl and cobalticenium termini. The size of the dendrimers was investigated using both dynamic light scattering and diffusion-ordered spectroscopy (DOSY) 1 H NMR spectroscopy, and the number of electrons involved in heterogeneous multielectron transfers at electrodes was searched by cyclic voltammetry. The latter works well up to the 27-branch dendrimer, whereas the 81-dendrimer yielded a result in an excess amount (110 electrons) owing to adsorption onto the cathode that becomes all the more significant as the metallodendrimer size increases.

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Section: Introductionmentioning

confidence: 95%

Metalation of Polyamine Dendrimers with Ethynylcobalticenium for the Construction of Mono‐ and Heterobimetallic Polycationic Metallodendrimers

Wang

Rapakousiou

Ruiz

et al. 2014

Chemistry A European J

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“…In general, the cathodic behavior ferrocene in an organic media such as dichoromethane, acetonitrile and DMF can be described by a reversible reduction in an electron, leading to ion Ferrocerium [1,2]. In the present work the oxidation of ferrocene, Fe(C 5 H 5 ) 2 , to the ferrocenium cation, Fe(C 5 H 5 ) 2 + , was examined in the solvent dichloromethane solution containing tetrabutylammonium tetrafluoroborate, using RDE. The results indicated that redox reactions of ferrocene/ ferricenium couple were a reversible process of diffusion-controlled single electron transfer in the studied solution.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Hydrazide Group on the Oxydation of Ferrocene at Two Different Electrodes Using Rotating Disk Electrode (RDE) in Organic Medium

Nacer¹,

Lanez

2013

ILCPA

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Through this work we adopted Rotating Disk Electrode (RDE) Voltammetry to study the kinetics of oxidation and the effect of hydrazide group on ferrocene in organic medium. Thus, two different electrodes (Pt and Ge) were used in order to determine this latter. According to the ferrocene taken as a witness the hydrazide group related to the ferrocene made oxidation more difficult. This ferrocenic derivative showed an electrochemical stability, a reversible electrochemical system and an electronic attractor effect of these substitutional ferrocene groups. Finally, we calculated some electrochemical parameters which were: the diffusion coefficients (D), the layer thickness in addition to the electron transfer rate.

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“…In general, the cathodic behavior ferrocene usual in organic media such as dichorométhane, acetonitrile and DMF can be described by a reversible reduction in an electron, leading to ion Ferrocerium [1][2]. In the present work the oxidation of ferrocene, Fe(C 5 H 5 ) 2 , to the ferrocenium cation, Fe(C 5 H 5 ) 2 + , was examined in the solvents dichloromethane solution containing tetrabutylammonium tetrafluoroborate, and aqueous solution containing sulfuric acid using the technique of cyclic voltammetry [3][4]. The results indicated that redox reactions of ferrocene/ ferricenium couple were a reversible process of diffusion-controlled single electron transfer in both studied solutions.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Properties of N'-Ferrocenylmethyl-N'-Phenylbenzohydrazide in Aqueous and Organic Mediums

Nacer¹,

Lanez²

2013

ILCPA

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We carried out a detailed study of the kinetics of oxidation of N'-ferrocenylmethyl-N'-phenylbenzohydrazide (FcX) to ferrocenium ion (FcX + ) in aqueous and organic mediums. This study using cyclic (CV) and rotating disk electrode (RDE) voltammetry showed that the FcX/FcX + redox couple is reversible. The N'-ferrocenylmethyl-N'-phenylbenzohydrazide and ferrocenium ion diffusion coefficients (D) were calculated from these results. In addition, the electron transfer rate constant and the exchange current density for the oxidation of ferrocene were determined. A comparison of the kinetic data obtained from the two electrochemical techniques appears to show that the data from the RDE experiments are more reliable because they are collected under strict mass transport control.

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The Polarographic Chemistry of Ferrocene, Ruthenocene and the Metal Hydrocarbon Ions

Cited by 159 publications

References 0 publications

Metalation of Polyamine Dendrimers with Ethynylcobalticenium for the Construction of Mono‐ and Heterobimetallic Polycationic Metallodendrimers

Metalation of Polyamine Dendrimers with Ethynylcobalticenium for the Construction of Mono‐ and Heterobimetallic Polycationic Metallodendrimers

The Effect of Hydrazide Group on the Oxydation of Ferrocene at Two Different Electrodes Using Rotating Disk Electrode (RDE) in Organic Medium

Electrochemical Properties of N'-Ferrocenylmethyl-N'-Phenylbenzohydrazide in Aqueous and Organic Mediums

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