Abstract
Three isomeric biscyanine dyes have been synthesized, each of which forms a pair of indothiazolocarbocyanines attached to a p-phenylene group through the 4,4′ (I), 5, 5′ (II), and 3, 3′ (III) positions of the thiazole nuclei. It has been found that in the biscyanines II and III the polymethine chromophores are conjugated and influence one another, which is shown by the splitting of the absorption bands of these dyes. In the biscyanines I, no interaction of the chromophores is observed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. I. Kiprianov and I. L. Mushkalo, ZhOrKh,1, 744, 751, 1965.
E. D. Sych, Ukr. khim. zh.,24, 93, 1958.
E. D. Sych, Ukr. khim. zh.,24, 79, 1958;25, 344, 1959; L. M. Litvinenko and A. P. Grekov, Ukr. khim. zh.,20, 199, 1954.
E. D. Sych, Ukr. khim. zh.,33, 80, 1963.
E. D. Sych and A. I. Kiprianov, ZhOKh,31, 3926, 1961.
J. Holsten and E. Pitts, J. Org. Chem.,26, 4151, 1961.
P. Ruggli and E. Gassenmeier, Helv. Chim. Acta,22, 503, 1939.
H. Schubert, H. Lorenz, and R. Fischer, J. pr. Chem.,22, 145, 1963.
J. Burns, H. McCombie, and H. Archibald, J. Chem. Soc., 2932, 1928.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kiprianov, A.I., Lazukina, L.A. The mutual influence of the chromophores of two cyanine dyes connected through a benzene nucleus. Chemistry of Heterocyclic Compounds 4, 180–182 (1970). https://doi.org/10.1007/BF00601115
Issue Date:
DOI: https://doi.org/10.1007/BF00601115