Photoactive amorphous molecular materials based on quinoline amines and their synthesis by Friedlaender condensation reaction

A new class of conjugated quinoline amines was prepared by Friedlaender condensation reaction. They showed stable amorphous state below glass transition temperatures as examined by differential scanning calorimetry and X-ray diffraction studies. Additionally, they exhibited fluorescence properties i...

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Bibliographic Details
Published in:Tetrahedron 2010-11, Vol.66 (48), p.9319-9326
Main Authors: Nedeltchev, Alexi K, Han, Haesook, Bhowmik, Pradip K
Format: Article
Language:English
Subjects:
Amines
Amorphous materials
Condensing
Fluorescence
Micrometers
Optical microscopy
Quantum efficiency
Quinoline
Online Access:Get full text
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Summary:A new class of conjugated quinoline amines was prepared by Friedlaender condensation reaction. They showed stable amorphous state below glass transition temperatures as examined by differential scanning calorimetry and X-ray diffraction studies. Additionally, they exhibited fluorescence properties in the blue to green region of visible spectrum in both solution and solid state. Their fluorescence quantum efficiencies in chloroform were in a broad range of 3-45%. Interestingly, they formed stable fibers with micrometer thickness drawn from melt, which were characterized by polarizing optical microscopy and scanning electron microscopy studies.
ISSN:0040-4020
DOI:10.1016/j.tet.2010.09.108