Characterization of triphenylamino-based polymethine dyes
Ullah, S., Ahmad, I., Alias, Y., Yusoff, I., & Ashraf, M. (2013). Characterization of triphenylamino-based polymethine dyes. Journal of Chemistry, 2013, 136908. doi:10.1155/2013/136908 Retrieved from http://www.hindawi.com/journals/jchem/2013/136908/
Published inJournal of Chemistry
© 2013 Saleem Ullah et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
In this high-technology application, age functional dyes especially polymethine dyes have captured much attention of the researchers due to their immense potential for high-tech uses. Polymethine dyes show promising absorption spectra in the visible range, which can be easily exploited for the use of written text copying, photographic imaging, or photothermographic recording materials. Keeping this in mind, our research is composed of an i nvestigation of two triphenylamino-based polymethine dyes, a known polymethine dye 3 and a new one polymethine dye 5, which have been synthesized by the reaction of 4-(diphenylamino) benzaldehyde 2 and 4, 4´-(phenylazanediyl) dibenzaldehyde 4 with 4, 4´-vinylidene-bis(N, N-dimethylaniline) 1. Based on bis- dimethylaminophenylethylene moiety, the new polymethine dye showed more high absorption spectra in the range of 600– 700nmthanthatoftheknownpolymethinedyebasedonbis-dimethylaminophenylethylenemoiety.Theirmaximumspectrawere exhibited at 637nm and 653nm, respectively. Their leuco-converted reversible colored forms were also investigated. ...
PublisherHindawi Publishing Corporation
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Except where otherwise noted, this item's license is described as © 2013 Saleem Ullah et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.