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Synthesis and Photochemical Evaluation of Iodinated Squarylium Cyanine Dyes

✍ Scribed by Paulo F. Santos; Lucinda V. Reis; Isabel Duarte; João P. Serrano; Paulo Almeida; Anabela S. Oliveira; Luís F. Vieira Ferreira

Publisher
John Wiley and Sons
Year
2005
Tongue
German
Weight
283 KB
Volume
88
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Several (multiply) iodinated squarylium cyanine dyes of type 1 and 8 (see Scheme and Table), derived from 1,3‐benzothiazole and 6‐iodo‐1,3‐benzothiazole, were synthesized as potential new photosensitizers, with absorptions in the 700‐nm region. Their ability to generate singlet oxygen (^1^O~2~) was assessed by luminescence‐decay measurement in the near‐IR. Some of these new dyes show interesting photophysical properties, and may be potentially used in photodynamic therapy (PDT).

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