Complexation of Bulky Camphorsulfonic Acid to Enhance Emission of Organic and Polymeric Fluorophores with Inherent Quinoline Moiety

Polymer PVQ was protonated with organic acid CSA to form ionic PVQ-CSA. The PVQ and PVQ-CSA thin films were then illuminated by UV lamp In this study, we reported the first example of enhanced photoluminescent (PL) emission by complexing bulky camphorsulfonic acid (CSA) to organic and polymeric mate...

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Bibliographic Details
Published in:Chemical physics letters 2010-12, Vol.501 (1-3), p.80-86
Main Authors: Chou, Chein-An, Chien, Rong-Hong, Lai, Chung-Tin, Hong, Jin-Long
Format: Article
Language:English
Subjects:
Aggregation-induced emission
camphorsulfonic acid
complexation
quinoline
restricted molecular rotation
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Summary:Polymer PVQ was protonated with organic acid CSA to form ionic PVQ-CSA. The PVQ and PVQ-CSA thin films were then illuminated by UV lamp In this study, we reported the first example of enhanced photoluminescent (PL) emission by complexing bulky camphorsulfonic acid (CSA) to organic and polymeric materials containing quinoline moiety. Small-molecule 2,4-diphenylquinoline (DPQ) and poly(vinyl 2,4-enylquinoline) (PVQ) were prepared primarily and complexed with equivalent amounts of CSA to generate the DPQ-CSA and PVQ-CSA complexes, respectively. All samples show the character of aggregation-induced emission (AIE); however, DPQ-CSA and PVQ-CSA complexes have higher emission intensities than their respective precursors of DPQ and PVQ. The CSA-complexation tends to hamper the molecular rotations and leads to the observed emission enhancement.
ISSN:0009-2614
1873-4448
DOI:10.1016/j.cplett.2010.10.058