Publication
Title
Synthesis and physical performance of indole and benzimidazole cyanine dyes
Author
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 lambda=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.
Language
English
Source (journal)
Journal of materials chemistry / Royal Society of Chemistry [London] - Cambridge, 1991 - 2012
Publication
Cambridge : 1996
ISSN
0959-9428
1364-5501 [online]
Volume/pages
6:4, p. 559-565
ISI
A1996UG46700007
Full text (Publisher's DOI)
UAntwerpen
Publication type
Subject
External links
Web of Science
Record
Identification
Creation 29.02.2012
Last edited 19.08.2017