Cited by 59Luminescence and Fluorescent MaterialsSynthesis and Properties of Aromatic CompoundsGraphene research and applications

The DOI matches its Crossref record; 85 of the 85 references it cites were found in a registry or an index.

Graphene-like Molecules Based on Tetraphenylethene Oligomers: Synthesis, Characterization, and Applications

Ma, Ji, Lin, Tingting, Pan, Xiaoyong, Wang, Weizhi·2014·Chemistry of Materials

Abstract

Graphene-like molecules were prepared by oxidative cyclodehydrogenation of tetraphenylethene(TPE) oligomers using iron(III) chloride as the catalyst under mild conditions. All the oxidized samples can be separated effectively from the stepwise ring-closing reaction that highly related to the reaction time. For example, the model compounds obtained from the stepwise cyclization reaction show a regular red-shift in UV/vis absorption and photoluminescence (PL) spectra. This result reveals that the molecular conjugation length will extend with the stepwise ring-closing reaction going on. Interestingly, we successfully obtained a series of colorful luminogens with blue, cyan, and green emission during this stepwise and accurate ring closing process. Cyclic voltammetry measurements taken give the corresponding band gap, which supports the results obtained from optical spectroscopy. For the strong intermolecular interaction, our graphene molecules can self-assemble to form a red-colored and hexagonal fiber. Furthermore, some molecules exhibit piezochromic luminescence. The PL emission of the molecules before and after oxidation can be dramatically quenched by picric acid through the electron transfer and/or energy transfer mechanism, enabling them to function as chemosensors for explosive detection. In addition, fluorescence cell imaging studies proved their potential biological application.

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Crossref · 10.1021/cm501590w

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Metadata

Authors
Ma, J., Lin, T., Pan, X., & Wang, W.
Affiliations
  • Fudan University (CN)
  • Agency for Science, Technology and Research (SG)
Corresponding author
Wang, Weizhi
Venue
Chemistry of Materials
Published
2014-07-09
Volume
26
Issue
14
Pages
4221-4229
ISSN
  • 0897-4756 (ISSN-L)
  • 1520-5002
OpenAlex
W2331631786
Cited by
59
References
85
Citations by year
2025: 2 · 2024: 2 · 2022: 3 · 2021: 2 · 2020: 4 · 2019: 5 · 2018: 6 · 2017: 6 · 2016: 14 · 2015: 12 · 2014: 3
FWCI
5.30
Type
journal article
Language
en
Open access
closed
Locations
Chemistry of Materials (publishedVersion)
Funders
National Natural Science Foundation of China (20974022, 21274027)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence and Fluorescent Materials
  • Physical Sciences › Chemistry › Organic Chemistry › Synthesis and Properties of Aromatic Compounds
  • Physical Sciences › Materials Science › Materials Chemistry › Graphene research and applications
Keywords
oxidative cyclodehydrogenation, iron(III) chloride catalysis, photoluminescence, luminogens, self-assembly, picric acid, luminescence quenching

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