Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 32, Pages 9244-9248Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201502912
Keywords
aggregation-induced emission; cage compounds; calixarenes; gas storage; supramolecular chemistry
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Funding
- National Natural Science Foundation of China [20902031, J1103514]
- National Basic Research Program [2012CB932500]
- Fundamental Research Funds for the Central Universities [HUST 2015TS086]
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A quadrangular prismatic tricyclooxacalixarene cage 1 based on tetraphenylethylene (TPE) was efficiently synthesized by a one-pot SNAr condensation reaction. As a result of the porous internal structure in the solid state, cage 1 exhibited a good CO2 uptake capacity of 12.5wt% and a high selectivity for CO2 over N-2 adsorption of 80 (273K, 1bar) with a BET surface area of 432m(2)g(-1). Formation of cage 1 led to the fluorescence of TPE being switched on in solution. The system was employed as a single-molecule platform to study the mechanism of aggregation-induced emission (AIE) by examining the restriction of intramolecular rotation (RIR).
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