New heterocyclic systems to afford microsecond green-light isomerisable azo dyes and their use as fast molecular photochromic switches

The use of benzothiazole as an electron-withdrawing group allows obtaining the fastest thermal isomerisation kinetics reported heretofore for neutral azo dyes (70 µs at 298 K). These green light activatable molecules are valuable candidates for molecular photoswitching purposes since they tolerate t...

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Bibliographic Details
Main Author: Garcia-Amorós, Jaume (author)
Other Authors: Castro, M. Cidália R. (author), Coelho, Paulo J. (author), Raposo, M. Manuela M. (author), Velasco, Dolores (author)
Format: article
Language:eng
Published: 2013
Subjects:
Azo dyes
Benzothiazole
Photochromic switches
Heterocycles
Synthesis
Ciências Naturais::Ciências Químicas
Science & Technology
Online Access:http://hdl.handle.net/1822/31824
Country:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/31824
Description
Summary:The use of benzothiazole as an electron-withdrawing group allows obtaining the fastest thermal isomerisation kinetics reported heretofore for neutral azo dyes (70 µs at 298 K). These green light activatable molecules are valuable candidates for molecular photoswitching purposes since they tolerate thousands of working cycles with no sign of fatigue.

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