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Journal of the American Chemical Society
12 12, 2018;140 (49): 16920-16924.

Metallacycle-Cored Supramolecular Polymers: Fluorescence Tuning by Variation of Substituents.

Luonan Xu, Xi Shen, Zhixuan Zhou, Tian He, Jinjin Zhang, Huayu Qiu, Manik Lal Saha, Shouchun Yin, Peter J Stang
Author Information
  1. Luonan Xu: College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 310036 , P. R. China.
  2. Xi Shen: College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 310036 , P. R. China.
  3. Zhixuan Zhou: Department of Chemistry , University of Utah , 315 South 1400 East, Room 2020 , Salt Lake City , Utah 84112 , United States. ORCID
  4. Tian He: College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 310036 , P. R. China.
  5. Jinjin Zhang: College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 310036 , P. R. China.
  6. Huayu Qiu: College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 310036 , P. R. China.
  7. Manik Lal Saha: Department of Chemistry , University of Utah , 315 South 1400 East, Room 2020 , Salt Lake City , Utah 84112 , United States. ORCID
  8. Shouchun Yin: College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 310036 , P. R. China. ORCID
  9. Peter J Stang: Department of Chemistry , University of Utah , 315 South 1400 East, Room 2020 , Salt Lake City , Utah 84112 , United States. ORCID
PMID: 30465423 DOI: 10.1021/jacs.8b10842

Abstract

Herein, we present a method for the preparation of supramolecular polymers with tunable fluorescence via the combination of metal-ligand coordination and phenanthrene-21-crown-7 (P21C7)-based host-guest interactions. A suite of rhomboidal metallacycles with different substituents were prepared via the coordination-driven self-assembly of a P21C7-based 60�� diplatinum(II) acceptor and 120�� dipyridyl donors. Upon variation of the substituents on the dipyridyl donors, the metallacycles exhibit emission wavelengths spanning the visible region (�� = 427-593 nm). Metallacycle-cored supramolecular polymers were obtained via host-guest interactions between bis-ammonium salts and P21C7. The supramolecular polymers exhibit emission wavelengths similar to those of the individual metallacycles and higher fluorescent efficiency in solution and thin films. Utilizing a yellow-emitting supramolecular polymer thin film with high quantum yield (0.22), a white-light-emitting LED was fabricated by painting the thin film onto an ultraviolet LED. This study presents an efficient approach for tuning the properties of fluorescent supramolecular polymers and the potential of the metallacycle-cored supramolecular polymers as a platform for the fabrication of light-emitting materials with good processability and tunability.

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Grants

  1. R01 CA215157/NCI NIH HHS

MeSH Term

Benzylamines
Coordination Complexes
Crown Ethers
Fluorescence
Fluorescent Dyes
Molecular Structure
Phenanthrenes
Platinum
Polymers
Solubility

Chemicals

Benzylamines
Coordination Complexes
Crown Ethers
Fluorescent Dyes
Phenanthrenes
Polymers
Platinum
Journal Article Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't

Word Cloud

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