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Article: Controlled Synthesis of PdII and PtII Supramolecular Copolymer with Sequential Multiblock and Amplified Phosphorescence
Title | Controlled Synthesis of PdII and PtII Supramolecular Copolymer with Sequential Multiblock and Amplified Phosphorescence |
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Authors | |
Keywords | living supramolecular polymerization multi-block supramolecular copolymer platinum and palladium external heavy-atom effect phosphorescence |
Issue Date | 2020 |
Publisher | Cell 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? |
Abstract | Supramolecular 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 Identifier | http://hdl.handle.net/10722/282893 |
ISSN | 2023 SCImago Journal Rankings: 6.556 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Wan, Q | - |
dc.contributor.author | To, WP | - |
dc.contributor.author | Chang, X | - |
dc.contributor.author | Che, CM | - |
dc.date.accessioned | 2020-06-05T06:22:48Z | - |
dc.date.available | 2020-06-05T06:22:48Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Chem, 2020, v. 6 n. 4, p. 945-967 | - |
dc.identifier.issn | 2451-9308 | - |
dc.identifier.uri | http://hdl.handle.net/10722/282893 | - |
dc.description.abstract | Supramolecular 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.language | eng | - |
dc.publisher | Cell Press. The Journal's web site is located at http://www.cell.com/chem/home | - |
dc.relation.ispartof | Chem | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | living supramolecular polymerization | - |
dc.subject | multi-block supramolecular copolymer | - |
dc.subject | platinum and palladium | - |
dc.subject | external heavy-atom effect | - |
dc.subject | phosphorescence | - |
dc.title | Controlled Synthesis of PdII and PtII Supramolecular Copolymer with Sequential Multiblock and Amplified Phosphorescence | - |
dc.type | Article | - |
dc.identifier.email | Wan, Q: wendyqyw@hku.hk | - |
dc.identifier.email | To, WP: kevintwp@hku.hk | - |
dc.identifier.email | Che, CM: chemhead@hku.hk | - |
dc.identifier.authority | To, WP=rp02410 | - |
dc.identifier.authority | Che, CM=rp00670 | - |
dc.description.nature | postprint | - |
dc.identifier.doi | 10.1016/j.chempr.2020.01.021 | - |
dc.identifier.scopus | eid_2-s2.0-85082777031 | - |
dc.identifier.hkuros | 310320 | - |
dc.identifier.volume | 6 | - |
dc.identifier.issue | 4 | - |
dc.identifier.spage | 945 | - |
dc.identifier.epage | 967 | - |
dc.identifier.eissn | 2451-9294 | - |
dc.identifier.isi | WOS:000526099500021 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 2451-9294 | - |