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Issue 12, 2016
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Survey, fluorescence spectra, and solubility of liquid cyanine dyes

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Abstract

We synthesized four liquid cyanine dyes, namely N,N′-didodecyl 44,N,N′-dioctadecyl indolenium 45,N,N′-bis(2,5,8-trioxa-10-octadecanyl)benzoxazolium 50 and benzothiazolium 51, which have a bis(perfluorobutylsulfonyl)imide anion. In the neat form, these liquid dyes exhibit more intense fluorescence at −196 °C than at 25 °C. The liquid N,N′-dialkylated indolenium derivatives 44 and 45 exhibited larger solubility in hexane than the corresponding solid derivatives. In addition, the liquid N,N′-bis(2,5,8-trioxa-10-octadecanyl)benzoxazolium and benzothiazolium derivatives 50 and 51 were more soluble in propanol than the corresponding solid derivatives.

Graphical abstract: Survey, fluorescence spectra, and solubility of liquid cyanine dyes

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Publication details

The article was received on 12 Jul 2016, accepted on 11 Oct 2016 and first published on 02 Nov 2016


Article type: Paper
DOI: 10.1039/C6NJ02160C
New J. Chem., 2016,40, 10187-10196

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    Survey, fluorescence spectra, and solubility of liquid cyanine dyes

    M. Matsui, T. Yamamoto, Y. Kubota and K. Funabiki, New J. Chem., 2016, 40, 10187
    DOI: 10.1039/C6NJ02160C

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