Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 21, Issue 33, Pages 11707-11711Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201502224
Keywords
aggregation-induced emission; macrocycles; mobius topology; topology flipping
Categories
Funding
- National Basic Research Program of China (973 Program) [2013CB834701]
- Research Grants Council of Hong Kong [604913, 16301614, N_HKUST604/14]
- University Grants Committee of Hong Kong [AoE/P-03/08]
- Guangdong Innovative Research Team Program [201101C0105067115]
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Molecules with Mobius topology have drawn increasing attention from scientists in a variety of fields, such as organic chemistry, inorganic chemistry, and material science. However, synthetic difficulties and the lack of functionality impede their fundamental understanding and practical applications. Here, we report the facile synthesis of an aggregation-induced-emission (AIE)-active macrocycle (TPE-ET) and investigate its analogous triply and singly twisted Mobius topologies. Because of the twisted and flexible nature of the tetraphenylethene units, the macrocycle adjusts its conformations so as to accommodate different guest molecules in its crystals. Moreover, theoretical studies including topological and electronic calculations reveal the energetically favorable interconversion process between triply and singly twisted topologies.
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