Cationic merocyanine dyes by photomodulation of [4-(naphthopyran-3-yl) phenyl]methines

Stuart Aiken, Danielle Clayton, Christopher D. Gabbutt, B. Mark Heron, Suresh B. Kolla

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A series of mono-, bis- and tris-4-(naphthopyran-3-yl)phenyl substituted methanols were efficiently synthesised using a 4-(naphthopyran-3-yl) phenyllithium intermediate. The resulting substituted methanols displayed good photochromism leading to the reversible generation of red-orange photomerocyanines. Acidic dehydration of the methanols gave intensely coloured cations which, upon subsequent UV irradiation, reversibly generated cationic photomerocyanines with long wavelength absorption maxima at ca. 640 nm.

Original languageEnglish
Pages (from-to)118-123
Number of pages6
JournalDyes and Pigments
Volume97
Issue number1
DOIs
Publication statusPublished - Apr 2013

Fingerprint

Methanol
Dyes
Photochromism
Dehydration
Cations
Positive ions
Irradiation
Wavelength
merocyanine dye
Bistris
phenyllithium

Cite this

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abstract = "A series of mono-, bis- and tris-4-(naphthopyran-3-yl)phenyl substituted methanols were efficiently synthesised using a 4-(naphthopyran-3-yl) phenyllithium intermediate. The resulting substituted methanols displayed good photochromism leading to the reversible generation of red-orange photomerocyanines. Acidic dehydration of the methanols gave intensely coloured cations which, upon subsequent UV irradiation, reversibly generated cationic photomerocyanines with long wavelength absorption maxima at ca. 640 nm.",
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Cationic merocyanine dyes by photomodulation of [4-(naphthopyran-3-yl) phenyl]methines. / Aiken, Stuart; Clayton, Danielle; Gabbutt, Christopher D.; Heron, B. Mark; Kolla, Suresh B.

In: Dyes and Pigments, Vol. 97, No. 1, 04.2013, p. 118-123.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Cationic merocyanine dyes by photomodulation of [4-(naphthopyran-3-yl) phenyl]methines

AU - Aiken, Stuart

AU - Clayton, Danielle

AU - Gabbutt, Christopher D.

AU - Heron, B. Mark

AU - Kolla, Suresh B.

PY - 2013/4

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KW - Cationic photomerocyanine dye

KW - Naphthopyran

KW - Photochemical switching

KW - Photochromism

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KW - Triarylmethine cation

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