Fluorescent azobenzenes and aromatic aldimines featuring an N-B interaction

Azobenzenes are constituents of the commonly and widely used azo dyes. Many dyes, except for the azo dyes, have been utilized for fluorescent materials. However, there are only a few fluorescent azobenzene derivatives and their fluorescence efficiencies are quite low. The current perspective provide...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2013-12, Vol.42 (45), p.15826-15834
Main Authors: Yoshino, Junro, Kano, Naokazu, Kawashima, Takayuki
Format: Article
Language:English
Subjects:
Azo dyes
Color
Colour
Constituents
Derivatives
Dyes
Fluorescence
Synthesis
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Summary:Azobenzenes are constituents of the commonly and widely used azo dyes. Many dyes, except for the azo dyes, have been utilized for fluorescent materials. However, there are only a few fluorescent azobenzene derivatives and their fluorescence efficiencies are quite low. The current perspective provides an account of the fluorescent azobenzenes and aromatic aldimines featuring an N-B interaction. Incorporation of the intramolecular N-B interaction by using the bis(pentafluorophenyl)boryl group makes the azobenzenes and aromatic aldimines fluorescent with a range of colours. Some of them fluoresce with extraordinarily high fluorescence quantum yields. Their synthesis, structures, fluorescence properties, and applications are discussed. The N-B interaction makes azobenzenes and aromatic aldimines fluorescent, and their properties change in response to protons, electrons, and ions.
ISSN:1477-9226
1477-9234
DOI:10.1039/c3dt51689j