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Clusteroluminescence in Phenothiazine Derivatives and Metal-Organic Frameworks: Mechanism Investigation and Application in Hypochlorite Detection
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  • Tingting Wu,
  • Mingyuan Lei,
  • Fayuan Ge,
  • Hegen Zheng
Tingting Wu
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Mingyuan Lei
Shandong University of Political Science and Law
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Hegen Zheng
Nanjing University

Corresponding Author:[email protected]

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Abstract

Recent years, the clusteroluminescence derived from through-space conjugation (TSC) is found in aromatic clusters. Diverging from the intensity enhancement or emission shift observed in aggregation-induced emission (AIE), clusteroluminescence imparts traditional aromatic compounds with new luminescence emission upon aggregation, opening a new chapter in the aggregate science. In this study, two phenothiazine derivatives with clusteroluminescence are synthesized, and their underlying mechanisms responsible for the emergence of new emission in aggregated state are explored through experimental and computational approaches. Additionally, a luminescent metal-organic framework (LMOF), Cd-MOF (Cd-PTZ-db) is fabricated from one phenothiazine derivative inheriting its clusteroluminescence prosperity, which exhibits great potential for the detection of hypochlorite (ClO-). Combining the clusteroluminescence with the traditional luminogens, this research provides insights into the role of through-space conjugation and intramolecular motion in clusteroluminescence. Furthermore, uniting the unique clusteroluminescent properties with the stable framework of MOFs helps to lay the ground for practical applications.