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Macrocyclic Donor‐Acceptor Dyads Composed of Oligothiophene Half‐Cycles and Perylene Bisimides

Please always quote using this URN: urn:nbn:de:bvb:20-opus-276435
  • A series of donor‐acceptor (D−A) macrocyclic dyads consisting of an electron‐poor perylene bisimide (PBI) π‐scaffold bridged with electron‐rich α‐oligothiophenes bearing four, five, six and seven thiophene units between the two phenyl‐imide substituents has been synthesized and characterized by steady‐state UV/Vis absorption and fluorescence spectroscopy, cyclic and differential pulse voltammetry as well as transient absorption spectroscopy. Tying the oligothiophene strands in a conformationally fixed macrocyclic arrangement leads to a moreA series of donor‐acceptor (D−A) macrocyclic dyads consisting of an electron‐poor perylene bisimide (PBI) π‐scaffold bridged with electron‐rich α‐oligothiophenes bearing four, five, six and seven thiophene units between the two phenyl‐imide substituents has been synthesized and characterized by steady‐state UV/Vis absorption and fluorescence spectroscopy, cyclic and differential pulse voltammetry as well as transient absorption spectroscopy. Tying the oligothiophene strands in a conformationally fixed macrocyclic arrangement leads to a more rigid π‐scaffold with vibronic fine structure in the respective absorption spectra. Electrochemical analysis disclosed charged state properties in solution which are strongly dependent on the degree of rigidification within the individual macrocycle. Investigation of the excited state dynamics revealed an oligothiophene bridge size‐dependent fast charge transfer process for the macrocyclic dyads upon PBI subunit excitation.show moreshow less

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Metadaten
Author: Kevin Bold, Matthias Stolte, Kazutaka Shoyama, Ana‐Maria Krause, Alexander Schmiedel, Marco Holzapfel, Christoph Lambert, Frank WürthnerORCiDGND
URN:urn:nbn:de:bvb:20-opus-276435
Document Type:Journal article
Faculties:Fakultät für Chemie und Pharmazie / Institut für Organische Chemie
Language:English
Parent Title (English):Chemistry – A European Journal
Year of Completion:2022
Volume:28
Issue:30
Article Number:e202200355
Source:Chemistry – A European Journal 2022, 28(30):e202200355. DOI: 10.1002/chem.202200355
DOI:https://doi.org/10.1002/chem.202200355
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften
Tag:donor-acceptor dyad; macrocycle; oligothiophene; perylene bisimide; photoinduced electron transfer
Release Date:2023/01/16
Licence (German):License LogoCC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International