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Article: Controlled Synthesis of PdII and PtII Supramolecular Copolymer with Sequential Multiblock and Amplified Phosphorescence

TitleControlled Synthesis of PdII and PtII Supramolecular Copolymer with Sequential Multiblock and Amplified Phosphorescence
Authors
Keywordsliving supramolecular polymerization
multi-block supramolecular copolymer
platinum and palladium
external heavy-atom effect
phosphorescence
Issue Date2020
PublisherCell Press. The Journal's web site is located at http://www.cell.com/chem/home
Citation
Chem, 2020, v. 6 n. 4, p. 945-967 How to Cite?
AbstractSupramolecular copolymers constitute a fundamental new class of functional materials attracting burgeoning interest, but examples that display phosphorescence and long-lived excited states are rare. Herein, we describe the synthesis of sequential phosphorescent multi-block supramolecular copolymers in one and multiple dimensions using pincer Pt II and Pd II complexes as building blocks by manipulating out-of-equilibrium self-assemblies via the living supramolecular polymerization approach. Doping a small amount of Pt II complexes (2 mol %) into the Pd II assemblies significantly boosted the emission efficiency and radiative decay rate constant (Φ em = 3.7%, k r = 1.8 × 10 4 s −1 in Pd II assemblies; Φ em = 76.2%, k r = 58.6 × 10 4 s −1 in Pt II-Pd II co-assemblies), which is ascribed to an external heavy-atom spin-orbital coupling effect arising from the doped Pt II complex with a delocalized 3[dσ∗→π∗] excited state. The findings on Pt II and Pd II supramolecular copolymers with controlled sequences and greatly enhanced phosphorescence efficiencies open the door to new photofunctional and responsive luminescent metal-organic supramolecular materials.
Persistent Identifierhttp://hdl.handle.net/10722/282893
ISSN

 

DC FieldValueLanguage
dc.contributor.authorWan, Q-
dc.contributor.authorTo, WP-
dc.contributor.authorChang, X-
dc.contributor.authorChe, CM-
dc.date.accessioned2020-06-05T06:22:48Z-
dc.date.available2020-06-05T06:22:48Z-
dc.date.issued2020-
dc.identifier.citationChem, 2020, v. 6 n. 4, p. 945-967-
dc.identifier.issn2451-9308-
dc.identifier.urihttp://hdl.handle.net/10722/282893-
dc.description.abstractSupramolecular copolymers constitute a fundamental new class of functional materials attracting burgeoning interest, but examples that display phosphorescence and long-lived excited states are rare. Herein, we describe the synthesis of sequential phosphorescent multi-block supramolecular copolymers in one and multiple dimensions using pincer Pt II and Pd II complexes as building blocks by manipulating out-of-equilibrium self-assemblies via the living supramolecular polymerization approach. Doping a small amount of Pt II complexes (2 mol %) into the Pd II assemblies significantly boosted the emission efficiency and radiative decay rate constant (Φ em = 3.7%, k r = 1.8 × 10 4 s −1 in Pd II assemblies; Φ em = 76.2%, k r = 58.6 × 10 4 s −1 in Pt II-Pd II co-assemblies), which is ascribed to an external heavy-atom spin-orbital coupling effect arising from the doped Pt II complex with a delocalized 3[dσ∗→π∗] excited state. The findings on Pt II and Pd II supramolecular copolymers with controlled sequences and greatly enhanced phosphorescence efficiencies open the door to new photofunctional and responsive luminescent metal-organic supramolecular materials.-
dc.languageeng-
dc.publisherCell Press. The Journal's web site is located at http://www.cell.com/chem/home-
dc.relation.ispartofChem-
dc.subjectliving supramolecular polymerization-
dc.subjectmulti-block supramolecular copolymer-
dc.subjectplatinum and palladium-
dc.subjectexternal heavy-atom effect-
dc.subjectphosphorescence-
dc.titleControlled Synthesis of PdII and PtII Supramolecular Copolymer with Sequential Multiblock and Amplified Phosphorescence-
dc.typeArticle-
dc.identifier.emailWan, Q: wendyqyw@hku.hk-
dc.identifier.emailTo, WP: kevintwp@hku.hk-
dc.identifier.emailChe, CM: chemhead@hku.hk-
dc.identifier.authorityTo, WP=rp02410-
dc.identifier.authorityChe, CM=rp00670-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.chempr.2020.01.021-
dc.identifier.scopuseid_2-s2.0-85082777031-
dc.identifier.hkuros310320-
dc.identifier.volume6-
dc.identifier.issue4-
dc.identifier.spage945-
dc.identifier.epage967-
dc.identifier.eissn2451-9294-
dc.publisher.placeUnited States-

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