Optimizing Millisecond Time Scale Near-Infrared Emission in Polynuclear Chrome(III)-Lanthanide(III) Complexes
DC Field | Value | Language |
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dc.contributor.author | Aboshyan-Sorgho, Lilit | - |
dc.contributor.author | Nozary, Homayoun | - |
dc.contributor.author | Aebischer, Annina | - |
dc.contributor.author | Buenzli, Jean-Claude G. | - |
dc.contributor.author | Morgantini, Pierre-Yves | - |
dc.contributor.author | Kittilstved, Kevin R. | - |
dc.contributor.author | Hauser, Andreas | - |
dc.contributor.author | Eliseeva, Svetlana V. | - |
dc.contributor.author | Petoud, Stephane | - |
dc.contributor.author | Piguet, Claude | - |
dc.date.accessioned | 2021-09-06T16:56:18Z | - |
dc.date.available | 2021-09-06T16:56:18Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2012-08-01 | - |
dc.identifier.issn | 0002-7863 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/107734 | - |
dc.description.abstract | This work illustrates a simple approach for optimizing long-lived near-infrared lanthanide-centered luminescence using trivalent chromium chromophores as sensitizers. Reactions of the segmental ligand L2 with stoichiometric amounts of M(CF3SO3)(2) (M = Cr, Zn) and Ln(CF3SO3)(3) (Ln = Nd, Er, Yb) under aerobic conditions quantitatively yield the D-3-symmetrical trinuclear [MLnM(L2)(3)](CF3SO3)(n) complexes (M = Zn, n = 7; M = Cr, n = 9), in which the central lanthanide activator is sandwiched between the two transition metal cations. Visible or NIR irradiation of the peripheral Cr(III) chromophores in [CrLnCr(L2)(3)](9+) induces rate-limiting intramolecular intermetallic Cr -> Ln energy transfer processes (Ln = Nd, Er, Yb), which eventually produces lanthanide-centered near-infrared (NIR) or IR emission with apparent lifetimes within the millisecond range. As compared to the parent dinuclear complexes [CrLn(L1)(3)](6+), the connection of a second strong-field [CrN6] sensitizer in [CrLnCr(L2)(3)](9+) significantly enhances the emission intensity without perturbing the kinetic regime. This work opens novel exciting photophysical perspectives via the buildup of non-negligible population densities for the long-lived doubly excited state [Cr*LnCr*(L2)(3)](9+) under reasonable pumping powers. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | ELECTRONIC-ENERGY LEVELS | - |
dc.subject | FIELD EXCITED-STATES | - |
dc.subject | LANTHANIDE AQUO IONS | - |
dc.subject | UP-CONVERSION | - |
dc.subject | SENSITIZED LUMINESCENCE | - |
dc.subject | DINUCLEAR COMPLEXES | - |
dc.subject | METAL-COMPLEXES | - |
dc.subject | LIGAND | - |
dc.subject | SPECTRA | - |
dc.subject | LN | - |
dc.title | Optimizing Millisecond Time Scale Near-Infrared Emission in Polynuclear Chrome(III)-Lanthanide(III) Complexes | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Buenzli, Jean-Claude G. | - |
dc.identifier.doi | 10.1021/ja304009b | - |
dc.identifier.scopusid | 2-s2.0-84864469294 | - |
dc.identifier.wosid | 000306942600062 | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.134, no.30, pp.12675 - 12684 | - |
dc.relation.isPartOf | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.citation.title | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.citation.volume | 134 | - |
dc.citation.number | 30 | - |
dc.citation.startPage | 12675 | - |
dc.citation.endPage | 12684 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | ELECTRONIC-ENERGY LEVELS | - |
dc.subject.keywordPlus | FIELD EXCITED-STATES | - |
dc.subject.keywordPlus | LANTHANIDE AQUO IONS | - |
dc.subject.keywordPlus | UP-CONVERSION | - |
dc.subject.keywordPlus | SENSITIZED LUMINESCENCE | - |
dc.subject.keywordPlus | DINUCLEAR COMPLEXES | - |
dc.subject.keywordPlus | METAL-COMPLEXES | - |
dc.subject.keywordPlus | LIGAND | - |
dc.subject.keywordPlus | SPECTRA | - |
dc.subject.keywordPlus | LN | - |
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