Synthesis, redox behavior and electrodeposition of biferrocene-modified gold clusters

Horikoshi, Tetsuo; Itoh, Manabu; Kurihara, Masato; Kubo, K.; Nishihara, Hiroshi

doi:10.1016/s0022-0728(99)00108-4

Cited by 52 publications

(38 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since the report by Brust et al [1], gold nanoclusters (GNCs) covered by self-assembled monolayers (SAMs) of alkanethiols have attracted many research groups [2][3][4][5][6][7][8][9][10][11][12][13][14] because SAM-covered GNCs have a high stability and those of a certain size with a narrow size distribution can be prepared relatively easily. GNC with special functionalities can be constructed by using thiol molecules with special functional groups.…”

Section: Introductionmentioning

confidence: 99%

Electron and ion transport through multilayers of Au nanoclusters covered by self-assembled monolayers

Song

Okamura

Kondo

et al. 2003

Journal of Electroanalytical Chemistry

View full text Add to dashboard Cite

Two types of gold nanoclusters (GNCs), one covered by self-assembled monolayers (SAMs) of mercaptoundecanoic acid (MUA), hexanethiol (C 6 SH), and ferrocenylhexanethiol (FcC 6 SH), MHF-GNC, and the other with MUA and C 6 SH, MH-GNC, were used for the construction of ten GNC layers of two different sequences on an MUA modified Au (111) surface based on the carboxylate/polycation (poly(allylamine hydrochloride) :PAH)/carboxylate electrostatic interaction. MHF-GNC was placed either as the layer closest to the gold electrode, i.e., the first layer, or as the outermost layer with MH-GHC in the other layers. A quasi-reversible redox peak with a constant charge corresponding to the redox of the ferrocene moiety of the MHF-GNC monolayer was observed at both electrodes, showing electrons and perchlorate ions could be transferred through the MH-GNC/PAH multilayers.Cross-sectional transmission electron microscopy revealed that the size of the immobilized GNC was almost same as that in solution and well-separated GNCs were dispersed rather uniformly within the polymeric matrix. The incorporation of perchlorate ion upon the oxidation of the ferrocene moiety of the MHF-GNC was demonstrated by electrochemical quartz microbalance measurement. Based on the above results, the charge transfer mechanism in the GNC multilayers was discussed.2

show abstract

Section: Introductionmentioning

confidence: 99%

Electron and ion transport through multilayers of Au nanoclusters covered by self-assembled monolayers

Song

Okamura

Kondo

et al. 2003

Journal of Electroanalytical Chemistry

View full text Add to dashboard Cite

show abstract

“…3). It is noteworthy that the dendritic effect on ∆E • values in this family of dendrimers is considerably less marked and sometimes nil, a feature that was also noted with ferrocenyl-urea dendrimers of this family for the recognition of H 2 PO 4 - [95,96].…”

Section: Chartsupporting

confidence: 60%

“…It is subjected to another dramatic dendritic effect: the shift of the initial CV wave upon titration (weak interaction) is only observed with G 1 and a new wave (strong interaction) is observed with G 2 and G 3 [95,96]. With amido ferrocenyl dendrimers, the oxidized ferrocenium form is not very stable due to the electron-withdrawing property of the amido group, but the electron-releasing permethylation in the Cp * ligand fully stabilizes this 17-electron form.…”

Section: Chartmentioning

confidence: 99%

Metallodendritic Exo-Receptors for the Redox Recognition of Oxo-Anions and Halides

Astruc

Daniel

Ruiz

Dendrimer Catalysis

View full text Add to dashboard Cite

“…BFc-modified gold nanoparticles (Au n ÍBFc) were synthesized by a thiol exchange between octanethiolate-stabilized metal nanoparticles (Au n Í OT) and a BFc thiol derivative, biferrocen-1¤-yl 8-mercaptooctyl ketone (BFcS) (Scheme 1). 29,39 Generally, stable gold nanoparticles stabilized by thiolates are obtained by the reduction of Au III ions (HAuCl 4 , AuCl 3 , etc.) in solution with a surface active agent (TOAB, DDAB, etc.…”

Section: Metal Nanoparticles Functionalized By Organic Moleculesmentioning

confidence: 99%

“…7 Murray et al reported the immobilization of redox ferrocene (Fc) species on gold nanoparticles. 28 Since then the introduction of versatile functional organic molecules, e.g., multiple redox, 29 photoactive, 30,31 radical, 32 and polymer's monomer, 33 have been reported. By hybridization, multiple properties originating in both the surface organic molecules and the inorganic core are expressed and the variation could be possibly utilized.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Organic Shell–Inorganic Core Hybrid Nanoparticles by Wet Process and Investigation of Their Advanced Functions

Yamada¹

2009

Bulletin of the Chemical Society of Japan

View full text Add to dashboard Cite

This account reviews the chemical synthesis of inorganic nanoparticles stabilized by an organic shell layer and the investigation of their specific characteristics. Consideration of design and construction of organicÍinorganic hybrid nanoparticles by wet process is indispensable in order to exploit the unprecedented nature resulting from the fusion of both organic and inorganic traits. In a series of studies, two synthetic parameters were the center of focus: physical construction of the inorganic core and the chemical constituents introduced. External stimuli such as electric fields or solvent polarity can be utilized to transform the characteristics of nanoparticles when redox active or liquid crystalline molecules as an organic shell are attached to the surface of an inorganic nano-core. In another case, the catalytic activities of nanoparticles are controllable by modifying the crystal faces and the surface area of the inorganic cores in connection with shape and size. Novel nanomaterial has also been fabricated by choosing a metal coordination polymer as a core, leading to the first isolation of alkyl chain-stabilized metal coordination nano-polymers (MCNPs). The compounds are listed as Pt nano-cubes, size-selected Au nanoparticles, metal hexacyanoferrate MCNPs, and metal nanoparticles functionalized by biferrocene, anthraquinone, and triphenylene derivatives. Synthetic procedures and remarkable characteristics are demonstrated.

show abstract

Synthesis, redox behavior and electrodeposition of biferrocene-modified gold clusters

Cited by 52 publications

References 24 publications

Electron and ion transport through multilayers of Au nanoclusters covered by self-assembled monolayers

Electron and ion transport through multilayers of Au nanoclusters covered by self-assembled monolayers

Metallodendritic Exo-Receptors for the Redox Recognition of Oxo-Anions and Halides

Synthesis of Organic Shell–Inorganic Core Hybrid Nanoparticles by Wet Process and Investigation of Their Advanced Functions

Contact Info

Product

Resources

About