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Electron flow in large metallomacromolecules and electronic switching of nanoparticle stabilization: Click ferrocenyl dentromers that reduce AuIII to Au nanoparticles

dc.rights.licenseopen
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorWANG, Qi
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorFU, Fangyu
hal.structure.identifierCIC BiomaGUNE
dc.contributor.authorMARTINEZ-VILLACORTA, A. M.
hal.structure.identifierCIC BiomaGUNE
dc.contributor.authorMOYA, S.
hal.structure.identifierLaboratoire de chimie de coordination [LCC]
dc.contributor.authorSALMON, L.
hal.structure.identifierLaboratoire de Chimie des Polymères Organiques [LCPO]
dc.contributor.authorVAX, Amélie
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorHUNEL, Julien
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorRUIZ, Jaime
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorASTRUC, D.
dc.date.accessioned2020
dc.date.available2020
dc.date.issued2018
dc.identifier.issn0947-6539
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/19936
dc.description.abstractEnClick ferrocenyl-terminal dentromers, a family of arene-cored dendrimers with triple branching (9-Fc, 27-Fc, 81-Fc, and 243-Fc), reduce AuIII to ferricinium dentromer-stabilized Au nanoparticles (AuNPs). Cyclic voltammetry studies in CH2Cl2 show reversible CV waves with some adsorption for the 243-Fc dentromer and the number of redox groups found, 255±25, by using the Bard–Anson method, is close to the theoretical number of 243. The dentromers reduce aqueous HAuCl4 to water-soluble ferricinium chloride dentromer-stabilized AuNPs with core sizes between 30 and 47 nm. These triazolylferricinium dentromer-stabilized AuNPs are reduced by cobaltocene to cobalticinium chloride and ferrocene dentromer weakly stabilized AuNPs together with a redshift of the AuNP plasmon. The weakness of the AuNP stabilization is characterized by dentromer extraction with CH2Cl2 along with irreversible AuNP agglomeration for the 9, 27, and 81-ferrocenyl dentromer, with only the 243-ferrocenyl dentromer-AuNP withstanding this process. Altogether, this demonstrates the electronic switching of the dentromer-mediated AuNP stabilization.
dc.language.isoen
dc.publisherWiley-VCH Verlag
dc.title.enElectron flow in large metallomacromolecules and electronic switching of nanoparticle stabilization: Click ferrocenyl dentromers that reduce AuIII to Au nanoparticles
dc.typeArticle de revue
dc.identifier.doi10.1002/chem.201802289
dc.subject.halChimie/Chimie de coordination
bordeaux.journalChemistry - A European Journal
bordeaux.page12686-12694
bordeaux.volume24
bordeaux.hal.laboratoriesLaboratoire de Chimie des Polymères Organiques (LCPO) - UMR 5629*
bordeaux.issue48
bordeaux.institutionBordeaux INP
bordeaux.institutionUniversité de Bordeaux
bordeaux.peerReviewedoui
hal.identifierhal-01961779
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01961779v1
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