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Patalag LJ, Hoche J, Mitric R, Werz DB, Feringa BL. Transforming Dyes into Fluorophores: Exciton‐Induced Emission with Chain‐like Oligo‐BODIPY Superstructures. Angew Chem Int Ed Engl 2022; 61:e202116834. [PMID: 35244983 PMCID: PMC9310714 DOI: 10.1002/anie.202116834] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Indexed: 11/24/2022]
Abstract
Herein we present a systematic study demonstrating to which extent exciton formation can amplify fluorescence based on a series of ethylene‐bridged oligo‐BODIPYs. A set of non‐ and weakly fluorescent BODIPY motifs was selected and transformed into discrete, chain‐like oligomers by linkage via a flexible ethylene tether. The prepared superstructures constitute excitonically active entities with non‐conjugated, Coulomb‐coupled oscillators. The non‐radiative deactivation channels of Internal Conversion (IC), also combined with an upstream reductive Photoelectron Transfer (rPET) and Intersystem Crossing (ISC) were addressed at the monomeric state and the evolution of fluorescence and (non‐)radiative decay rates studied along the oligomeric series. We demonstrate that a “masked” fluorescence can be fully reactivated irrespective of the imposed conformational rigidity. This work challenges the paradigm that a collective fluorescence enhancement is limited to sterically induced motional restrictions.
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Affiliation(s)
- Lukas J. Patalag
- University of Groningen Stratingh Institute for Chemistry Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Joscha Hoche
- Universität Würzburg Institute of Physical and Theoretical Chemistry Am Hubland 97074 Würzburg Germany
| | - Roland Mitric
- Universität Würzburg Institute of Physical and Theoretical Chemistry Am Hubland 97074 Würzburg Germany
| | - Daniel B. Werz
- Technische Universität Braunschweig Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany
| | - Ben L. Feringa
- University of Groningen Stratingh Institute for Chemistry Nijenborgh 4 9747 AG Groningen The Netherlands
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Patalag LJ, Hoche J, Mitric R, Werz DB, Feringa BL. Transforming Dyes Into Fluorophores: Exciton‐Induced Emission with Chain‐like Oligo‐BODIPY Superstructures. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lukas J. Patalag
- University of Groningen: Rijksuniversiteit Groningen Stratingh Institute for Chemistry NETHERLANDS
| | - Joscha Hoche
- Universität Würzburg: Julius-Maximilians-Universitat Wurzburg Institute of Physical and Theoretical Chemistry GERMANY
| | - Roland Mitric
- Universität Würzburg: Julius-Maximilians-Universitat Wurzburg Institute of Theoretical and Physical Chemistry GERMANY
| | - Daniel B. Werz
- TU Braunschweig: Technische Universitat Braunschweig Institute for Organic Chemistry GERMANY
| | - Ben L Feringa
- University of Groningen Stratingh Institute for Chemistry, Faculty of Science and Engineering Nijenborgh 4 9747 AG Groningen NETHERLANDS
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Zhang LP, Liu CZ, Liu M, Lu S, Yu SB, Qi QY, Yang GY, Li X, Yang B, Li ZT. CB[10]-driven self-assembly of a homotrimer from a symmetric organic dye: tunable multicolor fluorescence and higher solid-state stability than that of a CB[8]-included homodimer. Org Chem Front 2022. [DOI: 10.1039/d2qo01438f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A symmetric organic dye can form a highly stable homotrimer in the cavity of CB[10], which exhibits unique multicolour fluorescence different from that of the single molecule or its dimer.
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Affiliation(s)
- Le-Ping Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Chuan-Zhi Liu
- School of Chemistry and Chemical Engineering, Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, Shangqiu Normal University, Shangqiu 476000, China
| | - Ming Liu
- School of Chemistry and Chemical Engineering, Guizhou University, Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Department of Chemistry, Guiyang 550025, China
| | - Shuai Lu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518055, China
| | - Shang-Bo Yu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Qiao-Yan Qi
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Guan-Yu Yang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518055, China
| | - Bo Yang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Zhan-Ting Li
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
- Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
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