Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/10647

TitleNovel photochromic 2,2´-bithiophene azo dyes
Author(s)Coelho, Paulo J.
Carvalho, Luís H. Melo de
Moura, João C. V. P.
Raposo, M. Manuela M.
KeywordsPhotochromism
Heterocyclic azo dyes
Synthesis
Azo coupling
Bithiophene
Azo dyes
UV-Visible spectroscopy
UV/vis spectroscopy
Issue dateAug-2009
PublisherElsevier
JournalDyes and Pigments
Citation"Dyes and Pigments". ISSN 0143-7208. 82:2 (Aug. 2009) 130-133.
Abstract(s)The photochromic behaviour of two series of 2,2’-bithiophene azo dyes in THF solutions was studied. The photochromic properties and colour constancy were strongly dependent on the substitution pattern of the dyes. Under visible irradiation (> 420 nm) while some dyes exhibited a significant change in the colour intensity others exhibited an almost stable absorption. The photokinetic parameters of these systems are described.
TypeArticle
URIhttp://hdl.handle.net/1822/10647
DOI10.1016/j.dyepig.2008.12.005
ISSN0143-7208
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CDQuim - Artigos (Papers)

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