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Homochiral Metalated Tetraphenylethylene-Based Organic Cages: Unusual Chiral and Luminescent Behavior Depending on Thermodynamic and Kinetic Aggregation
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  • Xiao-Ping Zhou,
  • Hao-Jie Zhang,
  • Ya-Liang Lai,
  • Hu Yang,
  • Xian-Chao Zhou,
  • Zi-Jun Yuan,
  • Li Deng,
  • Dan Li
Xiao-Ping Zhou
Jinan University College of Chemistry and Materials Science

Corresponding Author:[email protected]

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Hao-Jie Zhang
Jinan University College of Chemistry and Materials Science
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Ya-Liang Lai
Jinan University College of Chemistry and Materials Science
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Hu Yang
Jinan University College of Chemistry and Materials Science
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Xian-Chao Zhou
Jinan University College of Chemistry and Materials Science
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Zi-Jun Yuan
Jinan University College of Chemistry and Materials Science
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Li Deng
Jinan University College of Chemistry and Materials Science
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Dan Li
Jinan University College of Chemistry and Materials Science
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Abstract

Chirality and luminescence are important for both chemistry and biology, which are highly influenced by aggregation. In this work, we reported a pair of metalated tetraphenylethylene(TPE)-based organic cage enantiomers, which feature a quadrangular prismatic cage structure. These homochiral cages exhibit concentration-dependent chiral behaviors alongside a propensity for thermodynamic aggregation. Aggregation caused quench effect is found for these cages accompanying the increasing of the concentrations. When a poor solvent is added to produce a kinetical aggregation, the aggregation-annihilation circular dichroism and aggregation-induced emission behaviours are observed for these enantiomeric cages. By comparing these observations with the photophysical behaviors of a pair of structurally similar organic molecular enantiomers, the unique photophysical properties observed are intricately linked to the metal-integrated TPE-functionalized cage structures.