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Induced circular dichroism from helicoidal nano substrates to porphyrins: the role of chiral self-assembly

dc.rights.licenseopenen_US
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorDUROUX, Gautier
dc.contributor.authorROBIN, Lucas
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorLIU, Peizhao
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorDOLS, Emilie
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorMENDES, Matheus De Souza Lima
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBUFFIERE, Sonia
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPARDIEU, Elodie
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorSCALABRE, Antoine
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorBUFFETEAU, Thierry
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorNLATE, Sylvain
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorODA, Reiko
dc.contributor.authorRAJU, Maria Sara
dc.contributor.authorATZORI, Matteo
dc.contributor.authorTRAIN, Cyrille
dc.contributor.authorRIKKEN, Geert
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorROSA, Patrick
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorHILLARD, Elizabeth
hal.structure.identifierChimie et Biologie des Membranes et des Nanoobjets [CBMN]
dc.contributor.authorPOUGET, Emilie
dc.date.accessioned2024-05-17T07:51:22Z
dc.date.available2024-05-17T07:51:22Z
dc.date.issued2023
dc.identifier.issn2040-3364en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/199912
dc.description.abstractEnBecause the combination of chiral and magnetic properties is becoming more and more attractive for magneto-chiral phenomena, we here aim at exploring the induction of chirality to achiral magnetic molecules as a strategy for the preparation of magneto-chiral objects. To this end, we have associated free base- and metallo-porphyrins with silica nano helices, using a variety of elaboration methods, and have studied them mainly by electronic natural circular dichroism (NCD) and magnetic circular dichroism (MCD) spectroscopies. While electrostatic or covalent surface grafting uniformly yielded very low induced CD (ICD) for the four assayed porphyrins, a moderate response was observed when the porphyrins were incorporated into the interior of the double-walled helices, likely due to the association of the molecules with the chirally-organized gemini surfactant. A generally stronger, but more variable, ICD was observed when the molecules were drop casted onto the helices immobilised on a quartz plate, likely due to the different capacities of the porphyrins to aggregate into chiral assemblies. Electronic spectroscopy, electron microscopy and IR spectroscopy were used to interpret the patterns of aggregation and their influence on ICD and MCD. No enhancement of MCD was observed as a result of association with the nanohelices except in the case of the free base, 5,10,15,20-tetra-(4-sulfonatophenyl)porphyrin (TPPS). This nanocomposite demonstrated a large ICD in the Soret region and a large MCD in the Q-region due to J-aggregation. However, no induced MChD was observed, possibly due to the spectral mismatch between the ICD and MCD peaks.
dc.description.sponsorshipNanocomposites hélicoïdaux pour l'induction de dichroïsme magnéto-chiral - ANR-19-CE09-0018en_US
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeauxen_US
dc.language.isoENen_US
dc.title.enInduced circular dichroism from helicoidal nano substrates to porphyrins: the role of chiral self-assembly
dc.typeArticle de revueen_US
dc.identifier.doi10.1039/d3nr02670aen_US
dc.subject.halChimie/Chimie de coordinationen_US
dc.subject.halChimie/Matériauxen_US
bordeaux.journalNanoscaleen_US
bordeaux.page12095-12104en_US
bordeaux.volume15en_US
bordeaux.hal.laboratoriesCBMN : Chimie & de Biologie des Membranes & des Nano-objets - UMR 5248en_US
bordeaux.issue28en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionBordeaux INPen_US
bordeaux.institutionCNRSen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-04235988
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nanoscale&rft.date=2023&rft.volume=15&rft.issue=28&rft.spage=12095-12104&rft.epage=12095-12104&rft.eissn=2040-3364&rft.issn=2040-3364&rft.au=DUROUX,%20Gautier&ROBIN,%20Lucas&LIU,%20Peizhao&DOLS,%20Emilie&MENDES,%20Matheus%20De%20Souza%20Lima&rft.genre=article


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