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Issue 10, 2019
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Rhodamine-naphthalimide demonstrated a distinct aggregation-induced emission mechanism: elimination of dark-states via dimer interactions (EDDI)

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Abstract

Rhodamine B-naphthalimide (RhB-Naph) demonstrated a distinct aggregation-induced emission (AIE) mechanism, different from the restriction of intramolecular rotations or vibrations as in traditional AIE molecules. The monomers of RhB-Naph were non-emissive, due to the presence of a dark S1 state. Upon molecular aggregation, intermolecular interactions significantly altered the electronic properties of RhB-Naph, leading to the formation of a bright S1 state and endowing RhB-Naph with notable AIE properties. Besides, we demonstrated that RhB-Naph enabled the development of a solid-state three-color fluorescent switch upon multi-external stimuli.

Graphical abstract: Rhodamine-naphthalimide demonstrated a distinct aggregation-induced emission mechanism: elimination of dark-states via dimer interactions (EDDI)

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Article information


Submitted
20 Nov 2018
Accepted
03 Jan 2019
First published
03 Jan 2019

Chem. Commun., 2019,55, 1446-1449
Article type
Communication

Rhodamine-naphthalimide demonstrated a distinct aggregation-induced emission mechanism: elimination of dark-states via dimer interactions (EDDI)

Q. Qi, L. Huang, R. Yang, J. Li, Q. Qiao, B. Xu, W. Tian, X. Liu and Z. Xu, Chem. Commun., 2019, 55, 1446
DOI: 10.1039/C8CC09212E

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