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Control over rotary motion and multicolour switching in 3-hydroxyphtha-limide fluorophores: An interplay between AIE and ESIPT

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F23%3APU149214" target="_blank" >RIV/00216305:26310/23:PU149214 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/pii/S0143720823002048?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0143720823002048?via%3Dihub</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.dyepig.2023.111279" target="_blank" >10.1016/j.dyepig.2023.111279</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Control over rotary motion and multicolour switching in 3-hydroxyphtha-limide fluorophores: An interplay between AIE and ESIPT

  • Original language description

    In this paper, we demonstrate the ability of N-substituted 3-hydroxyphthalimides with pyridine and isoquinoline rings to perform multicolour switching by different stimuli. Restriction of the C-N rotary motion of the heterocycles allows control over their photoluminescence performance (PLQY = 54-65%) in water-induced aggregation by an additive interplay of excited-state proton-mediated processes in the aggregates. Restriction of the rotations by the affinity of the heterocyclic nitrogen atoms to Zn2+ and switching to new emission bands (PLQY = 8-29%) in solution and solid state were also achieved. Protonation of the pyridine/isoquinoline rings allows the formation of intramolecular hydrogen bonds with the imide carbonyl groups, resulting in restricted rotations. The protonated forms switch to strong blue emission due to local excitation of the protonated heterocycles, which are unable to undergo proton transfer. Understanding the interplay between both photophysical processes would allow the switching of emissions by multistimuli.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10400 - Chemical sciences

Result continuities

  • Project

    <a href="/en/project/GA19-22783S" target="_blank" >GA19-22783S: Molecular energy harvesting materials: towards breaking the limits</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    DYES AND PIGMENTS

  • ISSN

    0143-7208

  • e-ISSN

    1873-3743

  • Volume of the periodical

    215

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    13

  • Pages from-to

    111279-111292

  • UT code for WoS article

    000976530700001

  • EID of the result in the Scopus database

    2-s2.0-85151776857