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Polymethine dyes with several conjugated chromophores

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

Triscyanine dyes with three successively conjugated chromophores were obtained from diquaternary salts of four isomeric dimethylbenzobisthiazoles and two isomeric hexamethylbenzodipyrrolenines. The spectra of the dyes contain three absorption bands, the intensities of which depend on the angles formed by the directions of the interacting chromophores and are determined by the structure of the heteroring. The magnitude of the separation of the frequencies of the two extreme absorption maxima of the triscyanines exceeds the magnitude of the separation of the frequencies of the maxima of the corresponding biscyanine dyes by a factor of √2. A dye with four successively conjugated chromophores was obtained from centrosymmetric hexamethylbenzodipyrrolenine, and its absorption spectrum was examined.

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Authors and Affiliations

  1. Institute of Organic Chemistry, Academy of Sciences of the Ukrainian SSR, Kiev

    F. A. Mikhailenko, G. G. Dyadyusha & A. N. Boguslavskaya

Authors
  1. F. A. Mikhailenko
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  2. G. G. Dyadyusha
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  3. A. N. Boguslavskaya
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 370–376, March, 1975.

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Mikhailenko, F.A., Dyadyusha, G.G. & Boguslavskaya, A.N. Polymethine dyes with several conjugated chromophores. Chem Heterocycl Compd 11, 324–329 (1975). https://doi.org/10.1007/BF00470080

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  • DOI: https://doi.org/10.1007/BF00470080

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