Herein, we report the synthesis and properties of a [6,6] hollow bilayer cylindrical nanoring () from a planar macrocycle via a Diels-Alder and Yamamoto coupling reaction. The fluorescence quantum yield of was determined to be = 52%, which is four times higher than its precursor. In addition, its hollow nanoring configuration was also simulated by theoretical studies, and the tension energy was estimated to be 47.1 kcal/mol.
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