Two stage colour modulation of triarylmethine dyes derived from a photochromic naphthopyran

Christopher D. Gabbutt, B. Mark Heron, Suresh B. Kolla, Matthew Mcgivern

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The synthesis of the unsymmetrical triarylmethine dyes 4 derived from a lithiated naphthopyran and diaryl ketones is reported. In toluene solution 4 display a typical reversible photochromic response becoming coloured upon irradiation with UV light and fading upon cessation of irradiation. At low pH an intensely coloured dye cation is generated and UV irradiation of this solution results in a further colour change as a consequence of photochromic cycling of the naphthopyran unit.

LanguageEnglish
Pages2031-2034
Number of pages4
JournalEuropean Journal of Organic Chemistry
Volume2008
Issue number12
DOIs
Publication statusPublished - 2 Apr 2008
Externally publishedYes

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Coloring Agents
dyes
Modulation
Irradiation
Color
color
modulation
irradiation
Toluene
fading
Ketones
ketones
Ultraviolet radiation
toluene
Cations
cations
cycles
synthesis

Cite this

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abstract = "The synthesis of the unsymmetrical triarylmethine dyes 4 derived from a lithiated naphthopyran and diaryl ketones is reported. In toluene solution 4 display a typical reversible photochromic response becoming coloured upon irradiation with UV light and fading upon cessation of irradiation. At low pH an intensely coloured dye cation is generated and UV irradiation of this solution results in a further colour change as a consequence of photochromic cycling of the naphthopyran unit.",
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Two stage colour modulation of triarylmethine dyes derived from a photochromic naphthopyran. / Gabbutt, Christopher D.; Heron, B. Mark; Kolla, Suresh B.; Mcgivern, Matthew.

In: European Journal of Organic Chemistry, Vol. 2008, No. 12, 02.04.2008, p. 2031-2034.

Research output: Contribution to journalArticle

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