NDLI: Enhanced emission of a pyridine-based luminogen by hydrogen-bonding to organic and polymeric phenols

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Enhanced emission of a pyridine-based luminogen by hydrogen-bonding to organic and polymeric phenols

Content Provider	Royal Society of Chemistry (RSC)
Author	Hong, Jin-Long Li, Shu-Ting Yang, Chih-Min Chen, Tai-Lin Chien, Wei-Lun
Copyright Year	2013
Abstract	Fluorescent bis(pyridinylvinyl)anthracene (An2Py) with two pyridine terminals was synthesized and used to prepare miscible blends with hydroxyl-containing components (organic bisphenol A (BPA) and polymeric poly(vinyl phenol) (PVPh)) through the facile intermolecular hydrogen-bond (H-bond) interactions between the pyridine and the hydroxyl functions. Before blending, the solution of An2Py already emits appreciably due to its aggregation-induced emission enhancement (AIEE) behavior; after blending with the hydroxyl components, the fluorescence can be further intensified due to the restricted molecular rotation, which leads to the blockage of non-radiative decay channels, imposed by the H-bond interactions. The role of the H-bonding on the restricted molecular rotation of the An2Py/BPA (and the An2Py/PVPh) blends was characterized by solution 1H NMR and solid infrared spectroscopy. The effectiveness of the organic BPA and the polymeric PVP as molecular anchors to lock the free rotation of the An2Py luminogen were compared and discussed in this study.
Starting Page	6930
Ending Page	6938
Page Count	9
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	3
Issue Number	19
Journal	RSC Advances
DOI	10.1039/c3ra22217a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Bisphenol A Infrared spectroscopy Anthracene Phenol Hydroxy group Pyridine American Institute of Electrical Engineers Miscibility Fluorescence Nuclear magnetic resonance Museo Carmen Funes
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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