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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/6346

Title: The synthesis and physical performance of indole and benzimidazole cyanine dyes
Authors: Peng, Zheng-hong
Qun, Li
Zhou, Xiang-feng
Carroll, S.
Geise, H.J.
Peng, Bi-xian
Dommisse, R.
Issue Date: 1996
Citation: Journal of materials chemistry, 6(4). p. 559-565
Abstract: Nine indole and benzimidazole cyanine dyes, used as green-sensitizing dyes in photographic emulsions, are synthesized. The compounds are characterized from mass spectrometric and NMR spectroscopic data, and elemental analysis. FAB mass spectrometry proved to be an efficient method for determining the structure of the compounds. From UV–VIS data of the compounds the sensitizing properties of the cyanine dyes are predicted. The reflection spectrum of Gs2-9 coated in photographic emulsions showed J-aggregation behaviour at = 560 nm. Unsymmetric benzimidazole–indole cyanine dyes showed good to excellent green sensitizing properties in photographic emulsions, whereas symmetric indole cyanine dyes showed heavy residual colour and no sensitizing properties.
URI: http://hdl.handle.net/1942/6346
DOI: 10.1039/JM9960600559
Type: Journal Contribution
Appears in Collections: Research publications

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